Release Note for systems built with IBM Spectrum Virtualize

This is the release note for the 8.5 release and details the issues resolved in all Program Temporary Fixes (PTFs) between 8.5.0.0 and 8.5.0.11. This document will be updated with additional information whenever a PTF is released.

This document was last updated on 4th April 2024.

  1. New Features
  2. Known Issues and Restrictions
  3. Issues Resolved
    1. Security Issues Resolved
    2. APARs Resolved
  4. Useful Links

Note. Detailed build version numbers are included in the Update Matrices in the Useful Links section.


1. New Features

The following new features have been introduced in the 8.5.0 release: The following features were first introduced in Non-LTS release 8.4.2.0: The following features were first introduced in Non-LTS release 8.4.1.0:

2. Known Issues and Restrictions

Note: For clarity, the terms "node" and "canister" are used interchangeably.
Details Introduced

The default delay for upgrade between nodes in an I/O group has changed from 30 minutes to 10 minutes, in order to reduce the overall upgrade duration.

This default can be modified in the GUI, or using the "-delay" option on the applysoftware CLI command.

 8.5.0.0

Customers using Spectrum Control v5.4.3 or earlier may notice that IP port status is incorrectly shown as "Unconfigured".

This issue will be resolved by a future release of Spectrum Control.

 8.4.2.0

Customers planning to upgrade to v8.4.0 or later should be aware that an update to OpenSSH has terminated support for all DSA keys. An update to OpenSSL has also terminated support for 1024-bit RSA keys used in SSL certificates.

Customers currently using DSA public keys for SSH access will need to generate new keys using alternative ciphers, such as RSA or ECDSA. If using RSA public keys for SSH access, it is recommended to use keys of 2048 bits or longer.

Customers currently using 1024-bit RSA keys in SSL certificates will need to generate new SSL certificates using 2048-bit RSA keys or ECDSA keys. This applies not only to the system certificate, but also to any SSL certificates used by external services such as LDAP servers.

 8.4.0.0

There is an existing limit on the number of files that can be returned by the CLI of approximately 780 entries. In many configurations this limit is of no concern. However, due to a problem with hot-spare node I/O stats files, 8-node clusters with many hardware upgrades or multiple spare nodes may see up to 900 I/O stats files. As a consequence the data collector for Storage Insights and Spectrum Control cannot list or download the required set of performance statistics data. The result is that there are many gaps in the performance data, leading to errors with the performance monitoring tools and a lack of performance history.

The workaround is to remove the files associated with spare nodes or previously/updated hardware using the cleardumps command (or to cleardumps the entire iostats directory).

This is a known issue that will be lifted in a future PTF. The fix can be tracked using APAR HU02403.

 8.4.0.0

Systems, with NPIV enabled, presenting storage to SUSE Linux Enterprise Server (SLES) or Red Hat Enterprise Linux (RHEL) hosts running the ibmvfc driver on IBM Power can experience path loss or read-only file system events.

This is cause by issues within the ibmvfc driver and VIOS code.

Refer to this troubleshooting page for more information.

 n/a
If an update stalls or fails then contact IBM Support for further assistance n/a
The following restrictions were valid but have now been lifted

Systems that are using an IP partnership on 8.4.x or earlier, then upgrade to 8.5.x or later may suffer a loss of access when removing the IP partnership.

This restriction has been resolved in 8.5.0.6 under APAR HU02513.

 8.5.0.0

The GUI does not allow the expansion of HyperSwap volumes. Customers wishing to perform this operation should use the expandvolume CLI command.

This restriction has been resolved in 8.5.0.6 under APAR HU02487.

 8.5.0.0

The CLI command 'lsportip' was removed in 8.4.2.0 and replaced with a new command 'lsip'. This will impact interoperability with any tools that rely on lsportip.

This change prevents Veeam from working correctly with Spectrum Virtualize systems running 8.4.2 or higher, until Veeam release a new version.

This issue has now been resolved as Veeam Backup and Replication Version 12 no longer has this restriction

 8.4.2.0

3. Issues Resolved

This release contains all of the fixes included in the 8.4.0.0 release, plus the following additional fixes.

A release may contain fixes for security issues, fixes for APARs or both. Consult both tables below to understand the complete set of fixes included in the release.

3.1 Security Issues Resolved

Security issues are documented using a reference number provided by "Common Vulnerabilities and Exposures" (CVE).
CVE Identifier Link for additional Information Resolved in
CVE-2023-27870 6985697 8.5.0.8
CVE-2023-30441 6987769 8.5.0.7
CVE-2022-21626 6858041 8.5.0.7
CVE-2022-1012 6858043 8.5.0.7
CVE-2021-45485 6858043 8.5.0.7
CVE-2021-45486 6858043 8.5.0.7
CVE-2022-43873 6858047 8.5.0.7
CVE-2022-42252 6858039 8.5.0.7
CVE-2022-43870 6858045 8.5.0.7
CVE-2022-0778 6622017 8.5.0.1
CVE-2021-35603 6622019 8.5.0.1
CVE-2021-35550 6622019 8.5.0.1
CVE-2021-38969 6584337 8.5.0.0
CVE-2021-42340 6541270 8.5.0.0
CVE-2021-29873 6497111 8.5.0.0
CVE-2020-10732 6497113 8.5.0.0
CVE-2020-10774 6497113 8.5.0.0
CVE-2021-33037 6497115 8.5.0.0

3.2 APARs Resolved

Show details for all APARs
APAR Affected Products Severity Description Resolved in Feature Tags
SVAPAR-107547 All Critical If there are more than 64 logins to a single Fibre Channel port, and a switch zoning change is made, a single node warmstart may occur. (show details)
Symptom Single Node Warmstart
Environment Systems with Fibre Channel adapters
Trigger Switch zoning change with more than 64 logins to a single storage system port.
Workaround Reduce the number of logins to a single storage system port
8.5.0.11 Reliability Availability Serviceability
SVAPAR-107734 All Critical When issuing IO to an incremental fcmap volume that is in a stopped state, but has recently been expanded, and it also has a partner fcmap, may cause the nodes to go into a restart. (show details)
Symptom Multiple Node Warmstarts
Environment Systems configured with Incremental flashcopy and reverse fcmap
Trigger Resizing volumes in an incremental partnered fcmaps
Workaround Ensure that both incremental partnered fcmaps are deleted, and then re-create a new pair if you need to resize the volumes.
8.5.0.11 FlashCopy
SVAPAR-112107 FS9500, SVC Critical There is an issue that affects PSU firmware upgrades in FS9500 and SV3 systems that can cause an outage. This happens when one PSU fails to download the firmware and another PSU starts to download the firmware. It is a very rare timing window that can be triggered if two PSUs are reseated close in time during the firmware upgrade process. (show details)
Symptom Loss of Access to Data
Environment FS9500 or SV3
Trigger Two PSUs are reseated close in time during the firmware upgrade process
Workaround None
8.5.0.11 System Update
SVAPAR-112707 SVC Critical Marking error 3015 as fixed on a SVC cluster containing SV3 nodes may cause a loss of access to data. For more details refer to this Flash (show details)
Symptom Loss of Access to Data
Environment Systems containing 214x-SV3 nodes that have been downgraded from 8.6 to 8.5
Trigger Marking 3015 error as fixed
Workaround Do not attempt to repair the 3015 error, contact IBM support
8.5.0.11 Reliability Availability Serviceability
SVAPAR-110234 FS5000, FS5200, FS7200, FS7300, FS9100, FS9200, FS9500, SVC High Importance A single node warmstart can occur due to fibre channel adapter resource contention during 'chpartnership -stop' or 'mkfcpartnership' actions (show details)
Symptom Single Node Warmstart
Environment None
Trigger 'chpartnership -stop', mkfcpartnership
Workaround None
8.5.0.11
SVAPAR-112525 All High Importance A node assert can occur due to a resource allocation issue in a small timing window when using Remote Copy (show details)
Symptom Single Node Warmstart
Environment Systems using Hyperswap, Metro Mirror, Global Mirror, or Global Mirror with Change Volumes
Trigger None
Workaround None
8.5.0.11 Global Mirror, Global Mirror with Change Volumes, HyperSwap, Metro Mirror
SVAPAR-117318 All High Importance A faulty SFP in a 32Gb Fibre Channel adapter may cause a single node warmstart, instead of reporting the port as failed. (show details)
Symptom Single Node Warmstart
Environment Systems with 32Gb Fibre Channel adapters
Trigger Faulty SFP
Workaround None
8.5.0.11 Reliability Availability Serviceability
SVAPAR-108551 All Suggested An expired token in the GUI file upload process can cause the upgrade to not start automatically after the file is successfully uploaded. (show details)
Symptom Configuration
Environment None
Trigger Start a code upgrade via GUI
Workaround Upgrade via the CLI. The other option is to log out from the GUI, then log back in to re-authenticate, then go back to the Update System view. On the Test and Update modal, select the test utility and update image files that are already on the system from the previous upload (without selecting to upload them again)
8.5.0.11 System Update
SVAPAR-112711 All Suggested IBM Storage Virtualize user interface code will not respond to a malformed HTTP POST with expected HTTP 401 message. (show details)
Symptom None
Environment IBM Storage Virtualize GUI
Trigger Malformed HTTP POST
Workaround None
8.5.0.11 GUI
SVAPAR-117179 All Suggested Snap data collection does not collect an error log if the superuser password requires a change (show details)
Symptom Snap failure
Environment None
Trigger Collecting a snap after the superuser password has expired.
Workaround Change the superuser password
8.5.0.11 Support Data Collection
SVAPAR-100127 All Critical The Service Assistant GUI Node rescue option incorrectly performs the node rescue on the local node instead of the node selected in the GUI. (show details)
Symptom Single Node Warmstart
Environment Any cluster running on 8.5.0.0 code and above.
Trigger This problem can happen if the user is on the Service Assistant GUI of a node but selects another node for node rescue. The Node rescue will perform on the local node they are on and not the node selected
Workaround Use the CLI 'satask rescuenode -force <node-panel-id>' command to select the correct node to perform the node rescue on, or log onto the Service GUI of the node that is requiring a node rescue if it is accessible, that way the node in need will be the local node
8.5.0.10 GUI, Graphical User Interface
SVAPAR-104533 All Critical Systems that encounter multiple node asserts, followed by a system T3 recovery, may experience errors repairing Data Reduction Pools (show details)
Symptom Loss of Access to Data
Environment Systems using Data Reduction Pools
Trigger Multiple node asserts followed by a system T3 recovery
Workaround None
8.5.0.10 Data Reduction Pools
SVAPAR-91860 All Critical If an upgrade is started with the pause flag and then aborted, the pause flag may not be cleared. This can trigger the system to encounter an unexpected code path on the next upgrade, thereby causing a loss of access to data (show details)
Symptom Loss of Access to Data
Environment All SpecV Systems
Trigger Starting an upgrade with the pause flag and then aborting it
Workaround None
8.5.0.10 System Update
HU02539 All High Importance If an IP address is moved to a different port on a node, the old routing table entries do not get refreshed. Therefore, the IP address maybe inaccessible through the new port (show details)
Symptom Management interface is unavailable
Environment All
Trigger Moving an IP address to a different port on a node
Workaround Either reboot the node or assign an IP address that has not been used on the node since it was last rebooted
8.5.0.10
HU02573 All High Importance HBA firmware can cause a port to appear to be flapping. The port will not work again until the HBA is restarted by rebooting the node. (show details)
Symptom Degraded Operation
Environment Systems with Fibre Channel adapters
Trigger Effects systems with high utilization, and possibly bursty IO
Workaround Rebooting the node will reset the buffer, thereby allowing the port to login again
8.5.0.10 Fibre Channel, Hosts
SVAPAR-100162 All High Importance Some host vendors such as Windows have recently started to use 'mode select page 7'. IBM Storage does not support this mode. If the storage received this mode level it would cause a warmstart to occur (show details)
Symptom Single node warmstart
Environment Any cluster running on 8.4.0.0 or higher
Trigger If a host uses 'mode select page 7'
Workaround None
8.5.0.10 Hosts
SVAPAR-100977 All High Importance When a zone containing NVMe devices is enabled, a node warmstart might occur. (show details)
Symptom Single Node Warmstart
Environment Any system running 8.5.0.5
Trigger Enabling a zone with a host that has approximately 1,000 vdisks mapped
Workaround Make sure that the created zone does not contain NVMe devices
8.5.0.10 NVMe
SVAPAR-105727 All High Importance An upgrade within the 8.5.0 release stream from 8.5.0.5 or below, to 8.5.0.6 or above, can cause an assert of down-level nodes during the upgrade, if volume mirroring is heavily utilised (show details)
Symptom Multiple Node Warmstarts
Environment Any system running volume mirroring with either a large number of volumes or high syncrate
Trigger Upgrading from 8.5.0.5 or below to 8.5.0.6 or above with heavy volume mirroring workload
Workaround Disable mirroring, or reduce syncrate to a low value during the upgrade process
8.5.0.10 Volume Mirroring
SVAPAR-94686 All High Importance The GUI can become slow and unresponsive due to a steady stream of configuration updates such as 'svcinfo' queries for the latest configuration data (show details)
Symptom Configuration
Environment None
Trigger None
Workaround None
8.5.0.10 GUI
SVAPAR-99175 All High Importance A node may warmstart due to an invalid queuing mechanism in cache. This can cause IO in cache to be in the same processing queue more than once. (show details)
Symptom Single Node Warmstart
Environment Any cluster on code below 8.6.1
Trigger Can happen when IO in cache is being processed
Workaround None
8.5.0.10 Cache
SVAPAR-99273 All High Importance If a SAN switch's Fabric Controller issues an abort (ABTS) command, and then issues an RSCN command before the abort has completed, this unexpected switch behaviour can trigger a single-node warmstart. (show details)
Symptom Single Node Warmstart
Environment None
Trigger An unexpected sequence of Fibre Channel frames received from Fabric Controller
Workaround None
8.5.0.10
HU02456 FS5100, FS5200, FS7200, FS9200, V7000 Suggested Unseating a NVMe drive after automanage failure can cause a node to warmstart (show details)
Symptom Single Node Warmstart
Environment Systems running 8.1.x onwards
Trigger Unseating of an NVMe drive after automanage failure
Workaround None as this issue is difficult to encounter
8.5.0.10 Drives
SVAPAR-100958 All Suggested A single FCM may incorrectly report multiple medium errors for the same LBA (show details)
Symptom Performance
Environment Predominantly FCM2, but could also affect other FCM generations
Trigger None
Workaround After the problem is detected, manually fail the FCM, format it and then insert back into the array. After the copyback has completed ensure to update all FCMs to the recommended firmware level
8.5.0.10 RAID
SVAPAR-107595 SVC, FS9500, FS9200, FS9100, FS7300 Suggested Improve maximum throughput for Global Mirror, Metro Mirror and Hyperswap by providing more inter-node messaging resources (show details)
Symptom Performance
Environment Systems running Global Mirror, Metro Mirror or Hyperswap
Trigger High Global Mirror, Metro Mirror or Hyperswap workload
Workaround None
8.5.0.10 Global Mirror, HyperSwap, Metro Mirror, Performance
SVAPAR-109289 All Suggested Buffer overflow may occur when handling the maximum length of 55 characters for either Multi-Factor Authentication (MFA) or Single Sign On (SSO) client secrets (show details)
Symptom Configuration
Environment Systems that use MFA or SSO
Trigger Using a client secret with > 55 characters
Workaround Use less then 55 characters for the client secret
8.5.0.10 Backend Storage
SVAPAR-98576 All Suggested Customers cannot edit certain properties of a flashcopy mapping via the GUI flashcopy mappings panel as the edit modal does not appear. (show details)
Symptom Configuration
Environment None
Trigger None
Workaround Use the CLI instead
8.5.0.10 FlashCopy, GUI, Graphical User Interface
SVAPAR-98567 FS5000 HIPER In FS50xx nodes, the TPM may become unresponsive after a number of weeks' runtime. This can lead to encryption or mdisk group CLI commands failing, or in some cases node warmstarts. This issue was partially addressed by SVAPAR-83290, but is fully resolved by this second fix. (show details)
Symptom Loss of Access to Data
Environment FS50xx platforms running either V8.4.0,V8.4.1,V8.4.2,V8.5.0,V8.5.1,V8.5.2,V8.5.3
Trigger Enabling encryption, or creating an encrypted pool
Workaround Reboot each node in turn. Wait 30 minutes between the two nodes in an I/O group, to allow hosts to failover. Check there are no volumes dependent on the second node before proceeding with the reboot. After all nodes have been rebooted, retry the configuration action, which should now complete successfully
8.5.0.9 Encryption
SVAPAR-94179 FS5100, FS5200, FS7200, FS7300, FS9100, FS9200, FS9500, V7000 HIPER Faulty hardware within or connected to the CPU can result in a reboot on the affected node. However it is possible for this to sometimes result in a reboot on the partner node (show details)
Symptom Loss of Access to Data
Environment All Flashsystems and V7000 Gen3, but not SVC
Trigger Node hardware fault
Workaround None
8.5.0.9 Reliability Availability Serviceability
SVAPAR-98672 All Critical VMWare host crashes on servers connected using NVMe over Fibre Channel with the host_unmap setting disabled (show details)
Symptom Loss of Access to Data
Environment ESXi hosts connected to a system using NVME over FC protocol
Trigger VM is sending unmap command with type deallocate
Workaround Enabling host unmap will resolve the VMWare instability. However enabling unmap can cause performance issues for systems with enterprise or nearline drives
8.5.0.9 NVMe
SVAPAR-98971 All Suggested The GUI may show repeated invalid pop-ups stating configuration node failover has occurred (show details)
Symptom Configuration
Environment None
Trigger None
Workaround Clearing browser cookies will resolve the issue (specifically the configNodeWWNN cookie)
8.5.0.9 GUI, Graphical User Interface
SVAPAR-89694 All HIPER Kernel panics might occur on a subset of Spectrum Virtualize Hardware Platforms with a 10G Ethernet adapter running 8.4.0.10, 8.5.0.7 and 8.5.3.1 when taking a snap. For more details refer to this Flash (show details)
Symptom Loss of Access to Data
Environment V7000 Gen2 & Gen2+, SVC nodes (DH8 & SV1) and FS50xx systems with 10G Ethernet adapters are affected. Nodes with different node hardware, e.g. FS5200 are not affected even if they have a 10G Ethernet adapter installed
Trigger Taking a snap, livedump or when a node warmstarts
Workaround Do not take snaps or livedumps
8.5.0.8
HU02586 All Critical When deleting a safeguarded copy volume which is related to a restore operation and another related volume is offline, the system may warmstart repeatedly (show details)
Symptom Multiple node warmstarts
Environment Systems running safeguarded copy
Trigger Deletion of a safeguarded volume while a restore is in operation
Workaround Return any related offline volumes online
8.5.0.8 Safeguarded Copy
SVAPAR-84116 All Critical The background delete processing for deduplicated volumes might not operate correctly if the preferred node for a deduplicated volume is changed while a delete is in progress. This can result in data loss which will be detected by the cluster when the data is next accessed (show details)
Symptom Data loss detected by the cluster when the data is accessed
Environment Systems running with deduplicated volumes on code levels up to 8.4.0.10, 8.5.0.0 through 8.5.0.7 and 8.5.1 through 8.5.4 are vulnerable to APAR SVAPAR-84116. The fix is available in 8.4.0.11 and 8.5.0.8
Trigger The background delete processing for deduplicated volumes might not operate correctly if the preferred node for a deduplicated volume is changed while a delete of another volume is in progress. This can result in data loss which will be detected by the cluster when the data is next accessed
Workaround Commands that change the preferred node of a deduplicated volume should not be run while another deduplicated volume is in a deleting state. These commands are: splitvdiskcopy and movevdisk
8.5.0.8 Data Reduction Pools, Deduplication
SVAPAR-87729 All Critical After a system has logged '3201 : Unable to send to the cloud callhome servers', the system may end up with an inconsistency in the Event Log. This inconsistency can cause a number of symptoms, including node warmstarts (show details)
Symptom Multiple node warmstarts
Environment Any system running V8.4.1,V8.4.2,V8.5.0,V8.5.1,V8.5.2,V8.5.3
Trigger Cloud callhome errors
Workaround None
8.5.0.8 Callhome
SVAPAR-89692 SVC, FS9500 Critical Battery back-up units may reach end of life prematurely on FS9500 / SV3 systems, despite the batteries being in good physical health, which will result in node errors and potentially nodes going offline if both batteries are affected (show details)
Symptom Loss of Redundancy
Environment FS9500 and SV3 systems are exposed
Trigger There is no trigger. The issue has an increasing likelihood to occur after the batteries are 4-6 months old
Workaround Contact IBM Support to obtain a utility to upgrade the battery firmware
8.5.0.8
SVAPAR-90438 All Critical A conflict of host IO on one node, with array resynchronisation task on the partner node, can result in some regions of parity inconsistency. This is due to the asynchronous parity update behaviour leaving invalid parity in the RAID internal cache (show details)
Symptom 1691 errors are reported
Environment Anything
Trigger This issue can only occur after the RAID array has undergone a re-initialization procedure (such as after a Tier3 recovery)
Workaround None
8.5.0.8 Distributed RAID
HU02565 All High Importance Node warmstart when generating data compression savings data for 'lsvdiskanalysis' (show details)
Symptom Single Node Warmstart
Environment All
Trigger None
Workaround None
8.5.0.8
SVAPAR-82950 FS9500, SVC High Importance If a FlashSystem 9500 or SV3 node had a USB Flash Drive present at boot, upgrading to either 8.5.0.7 or 8.5.3.0 may cause the node to become unresponsive. Systems already running 8.5.0.7 or 8.5.3.0 are not affected by this issue (show details)
Symptom Loss of Redundancy
Environment FlashSystem 9500 or SV3 node with a USB Flash Drive present
Trigger Upgrade to 8.5.3.0
Workaround None
8.5.0.8 Reliability Availability Serviceability
SVAPAR-85980 All High Importance iSCSI response times may increase on some systems with 25Gb ethernet adapters, after upgrade to 8.4.0.9 or 8.5.x (show details)
Symptom Performance is impacted
Environment Any platform running V8.4 or V8.5
Trigger None
Workaround None
8.5.0.8 Performance, System Update
SVAPAR-90395 FS9500, SVC High Importance FS9500 and SV3 might suffer from poor Remote Copy performance due to a lack of internal messaging resources (show details)
Symptom Remote Copy performance is impacted
Environment FS9500 or SV3 systems with Remote Copy, typically running Hyperswap, Metro Mirror, Global Mirror and GMCV
Trigger Not enough resources available for Remote Copy
Workaround None
8.5.0.8 Global Mirror, Global Mirror with Change Volumes, HyperSwap, Metro Mirror
HU02594 All Suggested Initiating drive firmware update via management user interface for one drive class can prompt all drives to be updated (show details)
Symptom None
Environment Any system running V8.4.2,V8.5.0,V8.5.1,V8.5.2,V8.5.3
Trigger None
Workaround None
8.5.0.8 Drives, System Update
SVAPAR-89296 All Suggested Immediately after upgrade from pre-8.4.0 to 8.4.0 or later, EasyTier may stop promoting hot data to the tier0_flash tier if it contains non-FCM storage. This issue will automatically resolve on the next upgrade (show details)
Symptom Performance degradation
Environment Multi-tier pools where tier0_flash contains non-FCM storage
Trigger Upgrading from pre-8.4.0 to 8.4.0
Workaround Upgrade to any later version of software, or warmstart the config node
8.5.0.8 EasyTier
HU02572 All HIPER When controllers running specified code levels with SAS storage are power cycled or rebooted, there is a chance that 56 bytes of data will be incorrectly restored into the cache, leading to undetected data corruption. The system will attempt to flush the cache before an upgrade, so this defect is less likely during an upgrade. (show details)
Symptom Undetected data corruption
Environment Controllers running 8.5.0.0 through 8.5.0.6, 8.5.1, 8.5.2 and 8.5.3 must have SAS storage to be vulnerable to this defect.
Trigger A power cycle or node reboot while the cache is not empty can trigger this defect
Workaround None
8.5.0.7 SAS
HU01782 All High Importance A node warmstart may occur due to a potentially bad SAS hardware component on the system such as a SAS cable, SAS expander or SAS HIC (show details)
Symptom Loss of access to data
Environment Systems that have a faulty SAS hardware component
Trigger Faulty SAS component
Workaround None
8.5.0.7 SAS
HU02219 All High Importance Certain tier 1 flash drives report 'SCSI check condition: Aborted command' events (show details)
Symptom None
Environment Drives with firmware levels starting 'MS'
Trigger None
Workaround None
8.5.0.7 Drives
HU02555 All High Importance A node may warmstart if the system is configured for remote authorization, but no remote authorization service, such as LDAP, has been configured (show details)
Symptom Single Node Warmstart
Environment Systems running 8.5.x onwards
Trigger Attempted login by a user that is not a locally configured user such as LDAP
Workaround Log in to the node with a known local user (i.e. superuser) then run 'svctask chauthservice -enable no -type ldap' to correct the auth inconsistency
8.5.0.7 LDAP
HU02557 All High Importance Systems may be unable to upgrade from pre-8.5.0 to 8.5.0 due to a previous node upgrade and certain DRP conditions existing (show details)
Symptom Single node warmstart
Environment A memory upgrade or node upgrade happened in the past, and DRP was in use at the point of the memory upgrade, and the DRP did not have any dedup-enabled volumes at the point of that upgrade
Trigger Certain DRP conditions, and a memory upgrade, and node upgrade has previously happened in the past
Workaround None
8.5.0.7 Data Reduction Pools, System Update
SVAPAR-83290 FS5000 High Importance An issue with the Trusted Platform Module (TPM) in FlashSystem 50xx nodes may cause the TPM to become unresponsive. This can happen after a number of weeks of continuous runtime. (show details)
Symptom Single node warmstart
Environment FS50xx platforms running either V8.4.0,V8.4.1,V8.4.2,V8.5.0,V8.5.1,V8.5.2,V8.5.3
Trigger Unresponsive TPM
Workaround Reboot each node in turn. Wait 30 minutes between the two nodes in an I/O group, to allow hosts to failover. Check there are no volumes dependent on the second node before proceeding with the reboot. After all nodes have been rebooted, retry the configuration action, which should now complete successfully.
8.5.0.7
SVAPAR-84305 All High Importance A node may warmstart when attempting to run 'chsnmpserver -community' command without any additional parameter (show details)
Symptom Loss of Access to Data
Environment Any platform running V8.4.0
Trigger None
Workaround Use an additional parameter with the 'chsnmpserver -community' command
8.5.0.7 System Monitoring
SVAPAR-84331 All High Importance A node may warmstart when the 'lsnvmefabric -remotenqn' command is run (show details)
Symptom Single node warmstart
Environment Any system running NVMe
Trigger The warmstart can occur typically when the 'lsnvmefabric -remotenqn' command is run by a script or orchestration layer such as Redhat Openshift or Kubernetes, combined with the IBM CSI driver.
Workaround None
8.5.0.7 NVMe
SVAPAR-85396 FS5000, FS5100, FS5200, FS7200, FS7300, FS9100, FS9200, FS9500 High Importance Replacement Samsung NVME drives may show as unsupported, or they may fail during a firmware upgrade as unsupported, due to a VPD read problem (show details)
Symptom Loss of redundancy
Environment Systems running V8.5.3 with industry standard NVMe drives
Trigger Drive firmware update or drive replacements
Workaround Manually power cycling the slot of the failed drive often helps
8.5.0.7 Drives
SVAPAR-86035 All High Importance Whilst completing a request, a DRP pool attempts to allocate additional metadata space, but there is no free space available. This causes the node to warmstart (show details)
Symptom Single node warmstart
Environment Any DRP pool that has run out of metadata space
Trigger Not enough metadata space available
Workaround Add additional space to the DRP pool
8.5.0.7 Data Reduction Pools
HU02553 FS9500, SVC Suggested Remote copy relationships may not correctly display the name of the vdisk on the remote cluster (show details)
Symptom None
Environment Any FS9500 or SV3 node running 8.4.2 or later, and using remote copy
Trigger None
Workaround None
8.5.0.7 Global Mirror, Remote Copy
HU02579 All Suggested The GUI 'Add External iSCSI Storage' wizard does not work with portsets. The ports are shown but are not selectable (show details)
Symptom None
Environment Any system running V8.4.2,V8.5.0,V8.5.1,V8.5.2, and using IP portsets
Trigger None
Workaround Use the command line to configure the external iSCSI connection
8.5.0.7 GUI, iSCSI
SVAPAR-83456 All Suggested An NVMe codepath exists where by strict state checking incorrectly decides that a software flag state is invalid, there by triggering a node warmstart (show details)
Symptom Single node warmstart
Environment Systems with NVMe hosts
Trigger None
Workaround None
8.5.0.7 NVMe, Hosts
HU02475 All HIPER Power outage can cause reboots on nodes with 25Gb ethernet adapters, necessitating T3 recovery (show details)
Symptom Loss of Access to Data
Environment Any node that has a 25Gb ethernet adapter installed
Trigger Power outage occurs, causing both nodes to experience a kernel panic, meaning cluster information is lost
Workaround T3 recovery will be required
8.5.0.6 Reliability Availability Serviceability
HU02420 All Critical During an array copyback it is possible for a memory leak to result in the progress stalling and an node warmstart of all nodes resulting in a temporary loss of access (show details)
Symptom Multiple node warmstarts
Environment Systems running < 8.4
Trigger Memory leak that causes resources used for the copyback to become depleted
Workaround None
8.5.0.6 RAID
HU02449 All Critical Due to a timing issue, it is possible (but very unlikely) that maintenance on a SAS 92F/92G expansion enclosure could cause multiple node warmstarts, leading to a loss of access (show details)
Symptom Loss of Access to Data
Environment Any system with a 92F/92G expansion enclosure
Trigger Removal of a SAS enclosure
Workaround None
8.5.0.6 Backend Storage
HU02513 All Critical When upgrading one side of a cluster from 8.4.2 to either 8.5.0 or 8.5.2, when the other side of the cluster is still running 8.4.2, when you run either 'mkippartnership' or 'rmippartnership' commands from the cluster that is running 8.5.0 or 8.5.2, then an iplink node warmstart can occur (show details)
Symptom Single Node Warmstart
Environment Nodes with active bridgework connections, will warmstart due to this defect
Trigger One side of the cluster is on 8.4.2 and the other side is on either 8.5.0 or 8.5.2 and partnerships are added or removed
Workaround Upgrade all sides of the cluster to 8.5.2
8.5.0.6 3-Site, Global Mirror, Global Mirror with Change Volumes, Metro Mirror
HU02519 & HU02520 All Critical Safeguarded copy source vdisks go offline when its mappings and target vdisks are deleted then recreated in rapid succession (show details)
Symptom Loss of Access to Data
Environment Systems running v8.4.2 or later
Trigger target vdisks are deleted then recreated in rapid succession
Workaround There currently is no work around for the issue. The vdisk will be offline for as long as 5 minutes but should come back online on its own
8.5.0.6 FlashCopy, Safeguarded Copy
HU02540 All Critical Deleting a HyperSwap volume copy with dependent Flashcopy mappings can trigger repeated node warmstarts (show details)
Symptom Loss of Access to Data
Environment Systems with FlashCopy on HyperSwap volumes
Trigger Deleting a HyperSwap volume copy with dependent Flashcopy mappings
Workaround None
8.5.0.6 FlashCopy, HyperSwap
HU02541 All Critical In some circumstances, the deduplication replay process on a data reduction pool can become stuck. During this process, IO to the pool is quiesced and must wait for the replay to complete. Because it does not complete, IO to the entire storage pool hangs, which can eventually lead to a loss of access to data. (show details)
Symptom Single Node Warmstart
Environment Systems running DRP - 8.4.2, 8.5+
Trigger None
Workaround Warmstart the nodes
8.5.0.6 Data Reduction Pools, Deduplication
HU02542 All Critical On systems that are running 8.4.2 or 8.5.0, when deleting a Hyperswap volume, or Hyperswap volume copy, that has Safeguarded copy snapshots configured, a T2 recovery can occur causing loss of access to data. (show details)
Symptom Multiple node warmstarts
Environment Systems that are running 8.4.2 or 8.5.0 only
Trigger Hyperswap volume, or Hyperswap volume copy, that has Safeguarded copy snapshots configured
Workaround After hitting the T2 recovery, check if the Hyperswap volume (copy) still (partially) exists. If it does, remove it as soon as possible
8.5.0.6 HyperSwap, Safeguarded Copy
HU02551 All Critical When creating multiple volumes with a high mirroring sync rate, an node warmstart maybe triggered due to internal resource constraints (show details)
Symptom Single Node Warmstart
Environment Systems running 8.5.0, 8.5.1, 8.5.2
Trigger Creating muliple volumes with high mirroring sync rate
Workaround Lower the sync rate to 100 when creating multiple volumes
8.5.0.6 Global Mirror, Global Mirror with Change Volumes, Metro Mirror
HU02561 All Critical If there are a high number of FC mappings sharing the same target, the internal array that is used to track the FC mapping is mishandled, thereby causing it to overrun. This will cause a cluster wide warmstart to occur (show details)
Symptom Multiple node warmstarts
Environment System running v8.3.1,v8.4.0,v8.4.1,v8.4.2,v8.5.0
Trigger Cascaded flashcopy mappings and one of the flashcopy target volumes is the source of 255 flashcopy mappings
Workaround None
8.5.0.6 FlashCopy
HU02563 All Critical Improve dimm slot identification for memory errors (show details)
Symptom Single node warmstart
Environment System running v8.4.0,v8.4.1,v8.4.2,v8.5.0,v8.5.1,v8.5.2
Trigger Bad memory module
Workaround Work with IBM Support to replace the DIMM that reported the uncorrectable error and replace it
8.5.0.6 Reliability Availability Serviceability
IT41088 V5000, V5100, FS5000, FS5100, FS5200 Critical Systems with low memory that have a large number of RAID arrays that are resyncing can cause a system to run out of RAID rebuild control blocks (show details)
Symptom Loss of Access to Data
Environment Low memory systems such as 5015/5035
Trigger Systems with 64gb or less of cache with resync operations spread across multiple RAID arrays
Workaround None
8.5.0.6 RAID
HU02466 All High Importance An issue in the handling of drive failures can result in multiple node warmstarts (show details)
Symptom Multiple Node Warmstarts
Environment Systems running v8.3.0 or later
Trigger None
Workaround None
8.5.0.6 RAID
HU02490 FS9500 High Importance Upon first boot, or subsequent boots of a FS9500 a 1034 error may appear in the event log that states that the CPU PCIe link is degraded (show details)
Symptom None
Environment FAB4 platforms
Trigger Boot up of the system
Workaround This error can be marked as fixed and is not indicative of a hardware fault in the canister
8.5.0.6 Reliability Availability Serviceability
HU02507 All High Importance A timing window exists in the code that handles host aborts for an ATS (Atomic Test and Set) command, if the host is NVMe-attached. This can cause repeated node warmstarts. (show details)
Symptom Single node warmstart
Environment Systems running V8.5.0 or V8.5.1
Trigger None
Workaround None
8.5.0.6 Host Cluster, Hosts
HU02511 All High Importance Code version 8.5.0 includes a change in the driver setting for the 25Gb ethernet adapter. This change can cause port errors, which in turn can cause iSCSI path loss symptoms (show details)
Symptom Loss of Access to Data
Environment Systems running V8.5.0
Trigger None
Workaround None
8.5.0.6 Host Cluster, Hosts, SCSI Unmap, iSCSI
HU02522 All High Importance When upgrading from 8.4.1 or lower to a level that uses IP portsets (8.4.2 or higher), there is an issue when the port ID on each node has a different remote copy use (show details)
Symptom None
Environment Systems running v8.4.2 or later with IP portsets
Trigger The same port id on each node has a different remote copy use
Workaround Add the IP that wasn't set for remote copy to the replication portset with zero for portcount
8.5.0.6 Remote Copy
HU02525 FS5000, FS5100, FS5200, FS7200, FS7300, FS9100, FS9200, FS9500, SVC, V7000 High Importance Code versions 8.4.2.x, 8.5.0.0 - 8.5.0.5 and 8.5.1.0 permitted the use of an iSCSI prefix of 0. However, during an upgrade to 8.5.x, this can prevent all iSCSI hosts from re-establishing iSCSI sessions, thereby causing access loss (show details)
Symptom None
Environment Systems running v8.4.2,v8.5.0,v8.5.1
Trigger iSCSI prefix of 0
Workaround Change all hosts with a prefix of 0 before upgrading
8.5.0.6 Hosts, iSCSI
HU02530 All High Importance Upgrades from 8.4.2 or 8.5 fail to start on some platforms (show details)
Symptom None
Environment System is running 8.4.2 or 8.5 with > 1 DRP pools. Seen on DH8 nodes but may affect other types
Trigger None
Workaround None
8.5.0.6 System Update
HU02534 All High Importance When upgrading from 7.8.1.5 to 8.5.0.4, PowerHA stops working due to SSH configuration changes (show details)
Symptom None
Environment Systems running 8.5 and higher
Trigger None
Workaround The PowerHA script 'cl_verify_svcpprc_config' can be changed to use the actual username instead of 'admin'
8.5.0.6 Availability and Serviceability, Reliability
HU02549 All High Importance When upgrading from a lower level, to 8.5 or higher for the first time, an unexpected node warmstart may occur that can lead to a stalled upgrade (show details)
Symptom Single node warmstart
Environment Systems upgrading from a lower level to 8.5 or higher
Trigger First time upgrade to 8.5 or higher from a lower level
Workaround None
8.5.0.6 System Update
HU02558 FS5000, FS5100, FS5200, FS7200, FS7300, FS9100, FS9200, FS9500, SVC, V7000 High Importance A timing window exists if a node encounters repeated timeouts on I/O compression requests. This can cause two threads to conflict with each other, thereby causing a deadlock condition to occur. (show details)
Symptom Single Node Warmstart
Environment Systems running v8.2 and later, v8.3 and later, v8.4 and later, or v8.5 and later
Trigger None
Workaround None. When the node detects the deadlock condition, it warmstarts in order to clear the issue
8.5.0.6 Compression
HU02562 All High Importance A node can warmstart when a 32 Gb Fibre Channel adapter receives an unexpected asynchronous event via internal mailbox commands. This is a transient failure caused during DMA operations (show details)
Symptom Loss of Access to Data
Environment Any system with a 32 Gb Fibre Channel adapter installed and running code level 8.4.0.4 or higher
Trigger A 32 Gb Fibre Channel adapter receives an unexpected asynchronous event via internal mailbox commands
Workaround None
8.5.0.6
IT41447 All High Importance When removing the DNS server configuration, a node may discover unexpected metadata and warmstart (show details)
Symptom Single Node Warmstart
Environment Systems running 8.5 or higher
Trigger Removal of DNS server configuration
Workaround None
8.5.0.6 Reliability Availability Serviceability
IT41835 All High Importance A T2 recovery may occur when a failed drive in the system is replaced with an unsupported drive type (show details)
Symptom Loss of Access to Data
Environment System that have drives reporting as UNSUPPORTED
Trigger A drive with a tech type as UNSUPPORTED will cause this T2 during drive replacement.
Workaround The system should recover automatically. To prevent the issue in the future, make sure system supported drive is used during replacement
8.5.0.6 Drives
HU02320 All Suggested A battery fails to perform re-condition. This is identified when 'lsenclosurebattery' shows the 'last_recondition_timestamp' as an empty field on the impacted node (show details)
Symptom None
Environment Any system running v8.3.1 or v8.4.0
Trigger None
Workaround Set the affected node into Service state as this will initiate battery reconditioning to start
8.5.0.6
HU02372 V5000, FS9100, V7000, V5100, SVC Suggested Host SAS port 4 is missing from the GUI view on some systems. (show details)
Symptom None
Environment Any system that has SAS ports
Trigger None
Workaround Run the command lsportsas to view all ports
8.5.0.6 GUI, SAS
HU02463 All Suggested LDAP user accounts can become locked out because of multiple failed login attempts (show details)
Symptom None
Environment Systems where LDAP accounts use one-time passwords
Trigger None
Workaround Use one or more of the following options: Use CLI instead of GUI. With CLI, after auth cache expires, do not issue any more commands after experiencing a CMMVC7069E error. Log out and log back in with new LDAP password; Max out authentication cache - "chldap -authcacheminutes <min>". Maximum value is 1440min = 24h. Setting it to 600 minutes can minimize probability of hitting the issue; Disable account lock-out on LDAP.
8.5.0.6 LDAP, Graphical User Interface
HU02468 All Suggested lsvdisk preferred_node_id filter not working correctly (show details)
Symptom None
Environment Systems running 8.4.2 or later
Trigger None
Workaround None
8.5.0.6 Command Line Interface
HU02474 All Suggested An SFP failure can cause a node warmstart (show details)
Symptom Single Node Warmstart
Environment Systems running v8.4 or later
Trigger None
Workaround None
8.5.0.6 Reliability Availability Serviceability
HU02487 All Suggested Problems expanding the size of a volume using the GUI (show details)
Symptom None
Environment Systems running 8.2.1 or later
Trigger None
Workaround Use the equivalent CMD line command instead such as expandvdisksize
8.5.0.6 GUI
HU02508 All Suggested The mkippartnership cli command does not allow a portset with a space in the name as a parameter. (show details)
Symptom None
Environment Systems running V8.5.0
Trigger portset containing a space
Workaround Request customer recreate portset name without a space
8.5.0.6 Command Line Interface
HU02528 All Suggested When upgrading to 8.5.0 or higher, a situation may occur whereby a variable is not locked at the correct point, resulting in a mismatch. The system code detects this and initiates a warmstart to reset any erroneous values (show details)
Symptom Single Node Warmstart
Environment Systems that have upgraded to v8.5
Trigger Can only occur during upgrade to 8.5 or higher
Workaround None
8.5.0.6 Reliability Availability Serviceability
HU02543 All Suggested After upgrade to 850, the 'lshost -delim' command shows hosts in offline state, while 'lshost' shows them online (show details)
Symptom None
Environment Systems running 8.5 or higher
Trigger None
Workaround None
8.5.0.6 Command Line Interface
HU02559 All Suggested A GUI resource issue may cause an out-of-memory condition, leading to the CIMOM and GUI becoming unresponsive, or showing incomplete information (show details)
Symptom None
Environment Systems running v8.3.1,v8.4.0,v8.4.1,v8.4.2,v8.5.0
Trigger None
Workaround Restart the cimserver service or tomcat service
8.5.0.6 GUI, Graphical User Interface
HU02560 All Suggested When creating a SAS host using the GUI, portset is incorrectly added. The command fails with CMMVC9777E as the portset parameter is not supported with the given type of host. (show details)
Symptom None
Environment Systems running v8.5.0 or later with SAS attached hosts
Trigger None
Workaround None
8.5.0.6 GUI, Hosts
HU02564 All Suggested The 'charraymember' command fails with a degraded DRAID array, even though the syntax of the command is correct (show details)
Symptom None
Environment All
Trigger Performing 'charraymember' command on a degraded DRAID array
Workaround Use the '-immediate' option when running the 'charraymember' command
8.5.0.6 Distributed RAID
IT42403 All Suggested A limit is in place to prevent the use of 8TB drives or larger in RAID5 arrays due to the risk of data loss during an extended rebuild. This limit was intended for 8 TiB however it was implemented as 8TB. A 7.3TiB drive has a capacity of 8.02TB and as a result was incorrectly prevented from use in RAID5 (show details)
Symptom None
Environment System running v8.3.0,v8.3.1,v8.4.0,v8.4.1,v8.4.2,v8.5.0,v8.5.1
Trigger None
Workaround Upgrade to 8.5.0.6 or request an ifix
8.5.0.6 Distributed RAID, Drives, RAID
SVAPAR-93987 All Suggested A timeout may cause a single node warmstart, if a FlashCopy configuration change occurs while there are many I/O requests outstanding for a source volume which has multiple FlashCopy targets (show details)
Symptom Single Node Warmstart
Environment FlashCopy with multiple targets for a single source volume
Trigger Timing window during FlashCopy configuration change
Workaround None
8.5.0.6 FlashCopy
HU02500 All Critical If a volume in a FlashCopy mapping is deleted, and the deletion fails (for example because the user does not have the correct permissions to delete that volume), node warmstarts can occur, leading to loss of access (show details)
Symptom Loss of Access to Data
Environment Systems running v8.5 with FlashCopy
Trigger Failed deletion of a volume in a FlashCopy mapping
Workaround Do not attempt volume deletion with a user that is not authorized
8.5.0.5 FlashCopy
HU02502 All Critical On upgrade to v8.4.2 or later with FlashCopy active, a node warmstart can occur, leading to a loss of access (show details)
Symptom Loss of Access to Data
Environment Systems running v8.4.2 or later with FlashCopy
Trigger Timing window during upgrade
Workaround None
8.5.0.5 FlashCopy
IT41173 FS5200 Critical If the temperature sensor in an FS5200 system fails in a particular way, it is possible for drives to be powered off, causing a loss of access to data. This type of temperature sensor failure is very rare. (show details)
Symptom Loss of Access to Data
Environment FS5200
Trigger Temperature sensor failure
Workaround None
8.5.0.5 Reliability Availability Serviceability
HU02339 All High Importance Multiple node warmstarts can occur if a system has direct Fibre Channel connections to an IBM i host, causing loss of access to data (show details)
Symptom None
Environment Systems running v8.4.0.4 and later, v8.4.2 and later, or v8.5 and later
Trigger Direct attachment to IBM i hosts
Workaround None
8.5.0.5 Hosts, Interoperability
HU02464 All High Importance An issue in the processing of NVMe host logouts can cause multiple node warmstarts (show details)
Symptom Multiple Node Warmstarts
Environment Systems with NVMe hosts
Trigger None
Workaround None
8.5.0.5 NVMe, Hosts
HU02479 All High Importance If an NVMe host cancels a large number of I/O requests, multiple node warmstarts might occur (show details)
Symptom Multiple Node Warmstarts
Environment Systems running 8.4 or later using NVMeFC
Trigger Cancelled I/O requests from an NVMe host
Workaround None
8.5.0.5 Hosts
HU02484 All Suggested The GUI does not allow expansion of DRP thin or compressed volumes (show details)
Symptom None
Environment Systems running 8.5
Trigger None
Workaround Use the expandvdisksize CLI command instead
8.5.0.5 Data Reduction Pools, Graphical User Interface
HU02492 SVC High Importance Configuration backup can fail after upgrade to v8.5. This only occurs on a very small number of systems that have a particular internal cluster state. If a system is running v8.5 and does not have an informational eventlog entry with error ID 988100 (CRON job failed), then it is not affected. (show details)
Symptom Configuration
Environment Systems that have upgraded to v8.5
Trigger None
Workaround None
8.5.0.5 Reliability Availability Serviceability
HU02497 All High Importance A system with direct Fibre Channel connections to a host, or to another Spectrum Virtualize system, might experience multiple node warmstarts (show details)
Symptom Multiple Node Warmstarts
Environment Systems running v8.4.0.4 and later, v8.4.2 and later, or v8.5 with direct-attached Fibre Channel connections
Trigger Fibre Channel direct-attached hosts
Workaround Connect affected HBAs via a Fibre Channel switch
8.5.0.5 Hosts, Interoperability
HU02512 FS5000 High Importance An FS5000 system with a Fibre Channel direct-attached host can experience multiple node warmstarts (show details)
Symptom Multiple Node Warmstarts
Environment Systems running v8.5
Trigger Fibre Channel direct-attached hosts
Workaround None
8.5.0.5 Hosts
IT41191 All High Importance If a REST API client authenticates as an LDAP user, a node warmstart can occur (show details)
Symptom Single Node Warmstart
Environment Systems running v8.5
Trigger REST API authentication with LDAP user
Workaround Use a locally-authenticated user instead of an LDAP user
8.5.0.5 REST API
HU02491 All Suggested On upgrade from v8.3.x, v8.4.0 or v8.4.1 to v8.5, if the system has Global Mirror with Change Volumes relationships, a single node warmstart can occur (show details)
Symptom Single Node Warmstart
Environment Systems upgrading to v8.5 with GMCV
Trigger None
Workaround Stop all GMCV relationships before upgrading
8.5.0.5 Global Mirror with Change Volumes
HU02494 All Suggested A system with a DNS server configured, which cannot ping the server, will log information events in the eventlog. In some environments the firewall blocks ping packets but allows DNS lookup, so this APAR disables these events. (show details)
Symptom Configuration
Environment Systems running v8.4.1, v8.4.2 or v8.5 with DNS servers that cannot be pinged.
Trigger Firewall rules that block ping to DNS server
Workaround Change firewall configuration to allow ping to DNS server
8.5.0.5 Reliability Availability Serviceability
HU02498 All Suggested If a host object with no ports exists on upgrade to v8.5, the GUI volume mapping panel may fail to load. (show details)
Symptom Configuration
Environment Systems running v8.5
Trigger Upgrade to v8.5, when a host object has no ports specified
Workaround None
8.5.0.5 Graphical User Interface
HU02501 All Suggested If an internal I/O timeout occurs in a RAID array, a node warmstart can occur (show details)
Symptom Single Node Warmstart
Environment Systems running v8.5
Trigger I/O timeout on a RAID array
Workaround None
8.5.0.5 RAID
HU02503 All Suggested The Date / Time panel can fail to load in the GUI when a timezone set via the CLI is not supported by the GUI (show details)
Symptom None
Environment Systems running 8.5 or later
Trigger Use CLI to set a timezone that is not supported in the GUI
Workaround Configure the time zone via CLI
8.5.0.5 Graphical User Interface
HU02504 All Suggested The Date / Time panel can display an incorrect timezone and default to manual time setting rather than NTP (show details)
Symptom None
Environment Systems running 8.5 or later
Trigger None
Workaround Configure the time zone via CLI
8.5.0.5 Graphical User Interface
HU02505 All Suggested A single node warmstart can occur on v8.5 systems running DRP, due to a low-probability timing window during normal running (show details)
Symptom Single Node Warmstart
Environment Systems running v8.5
Trigger None
Workaround None
8.5.0.5 Data Reduction Pools
HU02509 All Suggested Upgrade to v8.5 can cause a single node warmstart, if nodes previously underwent a memory upgrade while DRP was in use (show details)
Symptom Single Node Warmstart
Environment Systems running v8.5
Trigger Upgrade to v8.5, after memory upgrade was performed while DRP was in use.
Workaround None
8.5.0.5 Data Reduction Pools
HU02514 All Suggested Firmware upgrade may fail for certain drive types, with the error message CMMVC6567E The Apply Drive Software task cannot be initiated because no download images were found in the package file (show details)
Symptom Configuration
Environment Systems running v8.5
Trigger Drive firmware upgrade
Workaround None
8.5.0.5 Drives
HU02515 FS9500 Suggested Fan speed on FlashSystem 9500 can be higher than expected, if a high drive temperature is detected (show details)
Symptom None
Environment FlashSystem 9500 running v8.5
Trigger None
Workaround None
8.5.0.5 Drives
HU02506 All Critical On a system where NPIV is disabled or in transitional mode, certain hosts may fail to log in after a node warmstart or reboot (for example during an upgrade), leading to loss of access. (show details)
Symptom Loss of Access to Data
Environment Systems where NPIV is not enabled.
Trigger Upgrade from pre-8.5 to 8.5 software or later
Workaround None
8.5.0.4 Hosts
HU02441 & HU02486 All Critical Safeguarded Copy with DRP can cause node warmstarts and mdisk timeouts (show details)
Symptom Loss of Access to Data
Environment Systems running v8.4.2 or later using Safeguarded Copy with DRP
Trigger None
Workaround None
8.5.0.3 Data Reduction Pools, Safeguarded Copy
HU02488 All High Importance Remote Copy partnerships disconnect every 15 minutes with error 987301 (Connection to a configured remote cluster has been lost) (show details)
Symptom Degraded Operation
Environment Systems running 8.5.0 in replication partnerships with systems running 8.2.1 or 8.3.0
Trigger None
Workaround Upgrade partner systems to 8.3.1 or later
8.5.0.3 Global Mirror, Global Mirror with Change Volumes, Metro Mirror
HU02453 All Suggested It may not be possible to connect to GUI or CLI without a restart of the Tomcat server (show details)
Symptom None
Environment Systems running v8.4 or later
Trigger None
Workaround None
8.5.0.2 Command Line Interface, Graphical User Interface
IT40059 FS5200, FS7200, FS7300, FS9200, FS9500 Suggested Port to node metrics can appear inflated due to an issue in performance statistics aggregation (show details)
Symptom None
Environment Systems running 8.4 or later using Message Passing
Trigger None
Workaround None
8.5.0.2 Message Passing, System Monitoring
HU02261 All HIPER A Data Reduction Pool may be taken offline when metadata is detected to hold an invalid compression flag. For more details refer to this Flash (show details)
Symptom Loss of Access to Data
Environment Systems running v8.1 or later using Data Reduction Pools
Trigger None
Workaround None
8.5.0.0 Data Reduction Pools
HU02277 All HIPER RAID parity scrubbing can become stalled causing an accumulation of media errors leading to multiple drive failures with the possibility of data integrity loss. For more details refer to this Flash (show details)
Symptom Data Integrity Loss
Environment Systems with model MZILS3T8HMLH read intensive SSDs at drive firmware MS24 are particularly susceptible to the data integrity (DI) issue. Other drive types may see multiple failures without DI issue
Trigger None
Workaround None
8.5.0.0 RAID
HU02296 All HIPER The zero page functionality can become corrupt causing a volume to be initialised with non-zero data (show details)
Symptom Data Integrity Loss
Environment Systems running v8.2.1 or later
Trigger None
Workaround None
8.5.0.0 Storage Virtualisation
HU02310 All HIPER Where a FlashCopy mapping exists between two volumes in the same Data Reduction Pool and the same I/O group, and the target volume has deduplication enabled, then the target may contain invalid data (show details)
Symptom Data Integrity Loss
Environment Systems running v8.4 or later using Data Reduction Pools with FlashCopy or GMCV
Trigger None
Workaround None
8.5.0.0 Data Reduction Pools, FlashCopy, Global Mirror with Change Volumes
HU02312 All HIPER Changing the preferred node for a volume when it is in a remote copy relationship can result in multiple node warmstarts. For more details refer to this Flash (show details)
Symptom Multiple Node Warmstarts
Environment Systems running v8.4 or later using remote copy
Trigger Change preferred node for a volume in a remote copy relationship
Workaround Remove any associated remote copy relationship before changing the preferred node of a volume
8.5.0.0 Global Mirror, Global Mirror with Change Volumes, Metro Mirror
HU02313 FS9200, FS9100, FS7200, FS5100, V7000, V5100 HIPER When a FlashCore Module (FCM) fails there is a chance that this can trigger other FCMs in the same control enclosure to also fail. If enough additional drives fail, at the same time, this can take the array offline and cause a loss of access to data. For more details refer to this Flash (show details)
Symptom Loss of Access to Data
Environment Systems running v8.2 or later using Flash Core Modules
Trigger None
Workaround None
8.5.0.0 Drives
HU02338 All HIPER An issue in the setting up of reverse FlashCopy mappings can cause the background copy to finish prematurely providing an incomplete target image (show details)
Symptom Data Integrity Loss
Environment Systems using FlashCopy
Trigger None
Workaround None
8.5.0.0 FlashCopy
HU02340 All HIPER High replication workloads can cause multiple warmstarts with a loss of access at the partner cluster (show details)
Symptom Loss of Access to Data
Environment Systems running v8.3.1 or later using IP Replication
Trigger None
Workaround None
8.5.0.0 IP Replication
HU02384 SVC HIPER An inter-node message queue can become stalled, leading to an I/O timeout warmstart, and temporary loss of access (show details)
Symptom Offline Volumes
Environment SVC systems using SV1 model nodes running v8.3.1 or later
Trigger None
Workaround None
8.5.0.0 Reliability Availability Serviceability
HU02400 All HIPER A problem in the virtualization component of the system can cause a migration IO to be submitted in an incorrect context resulting in a node warmstart. In some cases it is possible that this IO has been submitted to an incorrect location on the backend, which can cause data corruption of an isolated small area (show details)
Symptom Data Integrity Loss
Environment Systems running v8.2.1 or later
Trigger None
Workaround None
8.5.0.0 Storage Virtualisation
HU02418 All HIPER During a DRAID array rebuild data can be written to an incorrect location. For more details refer to this Flash (show details)
Symptom Data Integrity Loss
Environment Systems running v8.3.1 or later
Trigger None
Workaround None
8.5.0.0 Distributed RAID, RAID
DT112601 All Critical Deleting image mode mounted source volume while migration is ongoing could trigger Tier 2 recovery (show details)
Symptom Loss of Access to Data
Environment Systems running v8.3.1 or later
Trigger Delete the source volume when migration progress is showing 0%
Workaround Wait for lsmigrate progress to report a non-zero progress value before issuing a volume delete
8.5.0.0 Storage Virtualization
HU02226 All Critical Due to an issue in DRP a node can repeatedly warmstart whilst rejoining a cluster (show details)
Symptom Offline Volumes
Environment Systems running v8.3.1 or later using Data Reduction Pools
Trigger None
Workaround None
8.5.0.0 Data Reduction Pools
HU02282 All Critical After a code upgrade the config node may exhibit high write response times. In exceptionally rare circumstances an Mdisk group may be taken offline (show details)
Symptom Loss of Access to Data
Environment Systems running v8.2.1 or later
Trigger None
Workaround None
8.5.0.0 Cache
HU02295 SVC Critical When upgrading from v8.2.1 or v8.3, in the presence of hot spare nodes, an issue with the handling of node metadata may cause a Tier 2 recovery (show details)
Symptom Loss of Access to Data
Environment SVC systems running v8.2.1 or v8.3 with Hot Spare Node
Trigger None
Workaround None
8.5.0.0 System Update
HU02309 All Critical Due to a change in how FlashCopy and remote copy interact, multiple warmstarts may occur with the possibility of lease expiries (show details)
Symptom Loss of Access to Data
Environment Systems using GMCV
Trigger None
Workaround None
8.5.0.0 Global Mirror with Change Volumes
HU02315 All Critical Failover for VMware iSER hosts may pause I/O for more than 120 seconds (show details)
Symptom Loss of Access to Data
Environment Systems presenting volumes to VMware iSER hosts
Trigger None
Workaround None
8.5.0.0 Hosts
HU02321 All Critical Where nodes relying on RDMA clustering alone, if a node is removed, warmstarts or goes down for upgrade there may be a delay in internode communication leading to lease expiries (show details)
Symptom Loss of Access to Data
Environment Systems using iSER RDMA clustering with iSCSI hosts
Trigger None
Workaround When upgrading, add an alternative, non-iSER medium for node to node communications
8.5.0.0 iSCSI
HU02328 FS9200, FS9100, FS7200, FS5100, V7000, V5100 Critical Due to an issue with the handling of NVMe registration keys, changing the node WWNN in an active system will cause a lease expiry (show details)
Symptom Loss of Access to Data
Environment Systems with NVMe drives
Trigger Change a node WWNN in an active system
Workaround None
8.5.0.0 NVMe
HU02342 All Critical Occasionally when an offline drive returns to online state later than its peers in the same RAID array there can be multiple node warmstarts that send nodes into a service state (show details)
Symptom Loss of Access to Data
Environment Systems running v7.8 or later
Trigger None
Workaround None
8.5.0.0 RAID
HU02349 All Critical Using an incorrect FlashCopy consistency group id to stop consistency group will result in T2 recovery if the incorrect id is >501 (show details)
Symptom Loss of Access to Data
Environment Systems running v8.3.1 or later using FlashCopy
Trigger Stop FlashCopy consistency group using an incorrect id of >501
Workaround Exercise greater care when stopping FlashCopy consistency groups where the id >501
8.5.0.0 FlashCopy
HU02368 All Critical When consistency groups from code levels prior to v8.3 are carried through to v8.3 or later then there can be multiple node warmstarts with the possibility of a loss of access (show details)
Symptom Loss of Access to Data
Environment Systems running v8.3 or later using HyperSwap
Trigger None
Workaround None
8.5.0.0 HyperSwap
HU02373 All Critical An incorrect compression flag in metadata can take a DRP offline (show details)
Symptom Loss of Access to Data
Environment Systems running v8.3.1 or later using Data Reduction Pools and Remote Copy
Trigger None
Workaround None
8.5.0.0 Data Reduction Pools
HU02374 SVC, V5000, V7000 Critical Hosts with Emulex 16Gbps HBAs may become unable to communicate with a system with 8Gbps Fibre Channel ports, after the host HBA is upgraded to firmware version 12.8.364.11. This does not apply to systems with 16Gb or 32Gb Fibre Channel ports (show details)
Symptom Loss of Access to Data
Environment Systems with 8Gbps Fibre Channel ports
Trigger Host Emulex 16Gbps HBA is upgraded to firmware version 12.8.364.11
Workaround Do not upgrade host HBA to firmware version 12.8.364.11
8.5.0.0 Hosts
HU02378 All Critical Multiple maximum replication delay events and Remote Copy relationship restarts can cause multiple node warmstarts with the possibility of a loss of access (show details)
Symptom Loss of Access to Data
Environment Systems running v8.2.1 using remote copy
Trigger None
Workaround None
8.5.0.0 Global Mirror, Global Mirror with Change Volumes, Metro Mirror
HU02393 All Critical Automatic resize of compressed/thin volumes may fail causing warmstarts on both nodes in an I/O group (show details)
Symptom Loss of Access to Data
Environment Systems running v8.1 or later
Trigger None
Workaround None
8.5.0.0 Storage Virtualisation
HU02397 All Critical A Data Reduction Pool, with deduplication enabled, can retain some stale state after deletion and recreation. This has no immediate effect. However if later on a node goes offline this condition can cause the pool to be taken offline (show details)
Symptom Loss of Access to Data
Environment Systems running v8.1.3 or later using Data Reduction Pools
Trigger None
Workaround None
8.5.0.0 Data Reduction Pools
HU02401 All Critical EasyTier can move extents between identical mdisks until one runs out of space (show details)
Symptom Loss of Access to Data
Environment Systems running v8.1 or later using EasyTier
Trigger None
Workaround Disable EasyTier. Manually migrate extents between mdisks
8.5.0.0 EasyTier
HU02402 All Critical The remote support feature may use more memory than expected causing a temporary loss of access (show details)
Symptom Loss of Access to Data
Environment Systems running v8.4 or later
Trigger None
Workaround None
8.5.0.0 Support Remote Assist
HU02406 All Critical An interoperability issue between Cisco NX-OS firmware and the Spectrum Virtualize Fibre Channel driver can cause a node warmstart on NPIV failback (for example during an upgrade) with the potential for a loss of access. For more details refer to this Flash (show details)
Symptom Loss of Access to Data
Environment Systems using NPIV that are connected to Cisco SAN equipment running NX-OS 8.4(2c) or later
Trigger Initiate an NPIV failback operation by, for example, performing an upgrade
Workaround Disable NPIV (which will require any hot spare nodes to be removed first)
8.5.0.0 Interoperability
HU02409 All Critical If rmhost command, with -force, is executed for a MS Windows server then an issue in the iSCSI driver can cause the relevant target initiator to become unresponsive (show details)
Symptom Loss of Access to Data
Environment Systems with iSCSI connected hosts
Trigger Run rmhost -force CLI command for an iSCSI connected MS Windows host
Workaround Do not use -force when removing a host object
8.5.0.0 Hosts, iSCSI
HU02410 SVC Critical A timing window issue in the transition to a spare node can cause a cluster-wide Tier 2 recovery (show details)
Symptom Loss of Access to Data
Environment SVC systems running v8.1 or later with Hot Spare Nodes
Trigger None
Workaround None
8.5.0.0 Hot Spare Node
HU02414 All Critical Under specific sequence and timing of circumstances the garbage collection process can timeout and take a pool offline temporarily (show details)
Symptom Loss of Access to Data
Environment Systems running v8.3 or later using Data Reduction Pools
Trigger None
Workaround None
8.5.0.0 Data Reduction Pools
HU02415 All Critical An issue in garbage collection IO flow logic can take a pool offline temporarily (show details)
Symptom Loss of Access to Data
Environment Systems running v8.3 or later using DRP
Trigger None
Workaround None
8.5.0.0 Data Reduction Pools
HU02421 All Critical A logic fault in the socket communication sub-system can cause multiple node warmstarts when more than 8 external clients attempt to connect. It is possible for this to lead to a loss of access (show details)
Symptom Loss of Access to Data
Environment Systems running v8.4.2.0
Trigger None
Workaround None
8.5.0.0 Reliability Availability Serviceability
HU02423 All Critical Volume copies may be taken offline even though there is sufficient free capacity (show details)
Symptom Offline Volumes
Environment Systems using Data Reduction Pools
Trigger None
Workaround None
8.5.0.0 Data Reduction Pools
HU02428 All Critical Issuing a movevdisk CLI command immediately after removing an associated GMCV relationship can trigger a Tier 2 recovery (show details)
Symptom Loss of Access to Data
Environment Systems running v8.4 or later using GMCV
Trigger None
Workaround None
8.5.0.0 Command Line Interface, Global Mirror with Change Volumes
HU02429 All Critical System can go offline shortly after changing the SMTP settings using the chemailserver command via the GUI (show details)
Symptom Loss of Access to Data
Environment Systems running v7.8.1 or later
Trigger None
Workaround None
8.5.0.0 System Monitoring
HU02430 All Critical Expanding or shrinking the real size of FlashCopy target volumes can cause recurring node warmstarts and may cause nodes to revert to candidate state (show details)
Symptom Loss of Access to Data
Environment Systems running v8.4.2.0 using FlashCopy
Trigger None
Workaround None
8.5.0.0 FlashCopy
HU02434 All Critical An issue in the internal accounting of FlashCopy resources can lead to multiple node warmstarts taking a cluster offline (show details)
Symptom Loss of Access to Data
Environment Systems running v8.4 or later using large (>5TB) volumes
Trigger None
Workaround None
8.5.0.0 FlashCopy
HU02435 All Critical The removal of deduplicated volumes can cause repeated node warmstarts and the possibility of offline Data Reduction Pools (show details)
Symptom Loss of Access to Data
Environment Systems running v8.4.2.0 using DRP
Trigger None
Workaround None
8.5.0.0 Data Reduction Pools
HU02440 All Critical Using the migrateexts command when both source and target mdisks are unmanaged can trigger a Tier 2 recovery (show details)
Symptom Loss of Access to Data
Environment Systems running v8.4 or later
Trigger Issue the migrateexts command when both source and target mdisks are unmanaged
Workaround Ensure that the mdisks are managed before migrating extents
8.5.0.0 Command Line Interface, Storage Virtualisation
HU02442 All Critical Issuing a lspotentialarraysize CLI command with an invalid drive class can trigger a Tier 2 recovery (show details)
Symptom Loss of Access to Data
Environment Systems running v8.4 or later
Trigger Enter lspotentialarraysize CLI command with an invalid drive class parameter
Workaround Before entering a lspotentialarraysize CLI command ensure that the drive class parameter is valid
8.5.0.0 Command Line Interface
HU02455 All Critical After converting a system from 3-site to 2-site a timing window issue can trigger a cluster tier 2 recovery (show details)
Symptom Loss of Access to Data
Environment Systems running v8.3 or later in a 3-site topology
Trigger None
Workaround None
8.5.0.0 3-Site
HU02088 All High Importance There can be multiple node warmstarts when no mailservers are configured (show details)
Symptom Multiple Node Warmstarts
Environment Systems running v8.1 or later
Trigger None
Workaround Configure a mailserver
8.5.0.0 System Monitoring
HU02127 All High Importance 32Gbps FC ports will auto-negotiate to 8Gbps, if they are connected to a 16Gbps Cisco switch port (show details)
Symptom Degraded Operation
Environment Systems running v8.3 or later with 32Gbps HBAs connecting to 16Gbps Cisco switch ports
Trigger Use auto-negotiate default on switch port
Workaround Manually set the switch port as an F-port operating at 16Gbps
8.5.0.0 Performance
HU02201 & HU02221 All High Importance Shortly after upgrading drive firmware, specific drive models can fail due to Too many long IOs to drive for too long errors (show details)
Symptom Degraded Operation
Environment Systems with the following drive models:
  • ST300MM0009 (300GB) - B5B8
  • ST600MM0009 (600GB) - B5B8
  • ST900MM0009 (900GB) - B5B8
  • ST1200MM0009 (1200GB) - B5B8
  • ST1200MM0129 (1800GB) - B5C9
  • ST2400MM0129 (2400GB) - B5C9
  • ST300MP0006 (300GB) - B6AA
  • ST600MP0006 (600GB) - B6AA
  • ST900MP0146 (900GB) - B6CB
Trigger None
Workaround None
8.5.0.0 Drives
HU02227 FS7200, FS9100, FS9200, SVC, V5100, V7000 High Importance Certain I/O patterns can cause compression hardware to post errors. When those errors exceed a threshold the node can be taken offline (show details)
Symptom Loss of Redundancy
Environment Systems running v8.2 or later using compressed volumes
Trigger None
Workaround None
8.5.0.0 Compression
HU02273 All High Importance When write I/O workload to a HyperSwap volume site reaches a certain thresholds, the system should switch the primary and secondary copies. There are circumstances where this will not happen (show details)
Symptom Degraded Operation
Environment Systems running v8.1 or later using HyperSwap
Trigger None
Workaround None
8.5.0.0 HyperSwap
HU02290 All High Importance An issue in the virtualization component can divide up IO resources incorrectly leading to adverse impact on queuing times for mdisks CPU cores leading to performance impact (show details)
Symptom Performance
Environment Systems with large configurations in terms of host logins and mdisks
Trigger None
Workaround Reduce the number of target ports in use
8.5.0.0 Storage Virtualisation
HU02297 All High Importance Error handling for a failing backend controller can lead to multiple warmstarts (show details)
Symptom Multiple Node Warmstarts
Environment Systems attached to faulty backend controllers
Trigger None
Workaround None
8.5.0.0 Backend Storage
HU02300 All High Importance Use of Enhanced Callhome in censored mode may lead to adverse performance around 02:00 (2AM) (show details)
Symptom Performance
Environment Systems with Enhanced Callhome enabled in censored mode
Trigger None
Workaround None
8.5.0.0 System Monitoring
HU02301 SVC High Importance iSCSI hosts connected to iWARP 25G adapters may experience adverse performance impacts (show details)
Symptom Performance
Environment SVC model SV1 systems with iWARP 25G adapters
Trigger None
Workaround None
8.5.0.0 iSCSI
HU02304 FS9100, V7000, V5100 High Importance Some RAID operations for certain NVMe drives may cause adverse I/O performance (show details)
Symptom Performance
Environment Systems running v8.4 or later using NVMe drives
Trigger None
Workaround None
8.5.0.0 RAID
HU02311 All High Importance An issue in volume copy flushing may lead to higher than expected write cache delays (show details)
Symptom Performance
Environment Systems running v8.3.1 or later
Trigger None
Workaround None
8.5.0.0 Cache
HU02317 All High Importance A DRAID expansion can stall shortly after it is initiated (show details)
Symptom Degraded Operation
Environment Systems running v8.3.1 or later using DRAID
Trigger None
Workaround None
8.5.0.0 Distributed RAID
HU02319 All High Importance The GUI can become unresponsive (show details)
Symptom None
Environment Systems running v8.4.0.1, or later, using remote copy without 3-site replication
Trigger None
Workaround None
8.5.0.0 Graphical User Interface
HU02326 SVC High Importance Delays in passing messages between nodes in an I/O group can adversely impact write performance (show details)
Symptom Performance
Environment SVC systems running v8.2.1 or later
Trigger None
Workaround None
8.5.0.0 Performance
HU02343 All High Importance For Huawei Dorado V3 Series backend controllers it is possible that not all available target ports will be utilized. This would reduce the potential IO throughput and can cause high read/write backend queue time on the cluster impacting front end latency for hosts (show details)
Symptom Performance
Environment Systems using Huawei Dorado V3 Series backend controllers
Trigger None
Workaround None
8.5.0.0 Backend Storage
HU02345 All High Importance When connectivity to nodes in a local or remote cluster is lost, inflight IO can become stuck in an aborting state, consuming system resources and potentially adversely impacting performance (show details)
Symptom Performance
Environment Systems using remote copy
Trigger None
Workaround None
8.5.0.0 HyperSwap, Metro Mirror
HU02347 All High Importance An issue in the handling of boot drive failure can lead to the partner drive also being failed (show details)
Symptom Degraded Operation
Environment Systems running v8.2.1 or later
Trigger None
Workaround None
8.5.0.0 Reliability Availability Serviceability
HU02360 All High Importance Cloud Callhome may stop working and provide no indication of this in the event log. For more details refer to this Flash (show details)
Symptom Degraded Operation
Environment Systems running v8.3 or later
Trigger None
Workaround None
8.5.0.0 System Monitoring
HU02362 SVC, FS9200, FS9100, FS7200, FS5100, FS5200, V7000, V5100 High Importance When the RAID scrub process encounters bad grains, the peak response time for reads and writes can be adversely impacted (show details)
Symptom Performance
Environment Systems running v8.2 or later using NVMe drives
Trigger None
Workaround None
8.5.0.0 RAID
HU02376 All High Importance FlashCopy maps may get stuck at 99% due to inconsistent metadata accounting between nodes (show details)
Symptom Degraded Operation
Environment Systems running v8.2.1 or later using FlashCopy
Trigger None
Workaround None
8.5.0.0 FlashCopy
HU02388 V5000, FS5000 High Importance GUI can hang randomly due to an out of memory issue after running any task (show details)
Symptom Degraded Operation
Environment Storwize V5000E and FlashSystem 5000 systems running v8.2.1 or later
Trigger None
Workaround None
8.5.0.0 Graphical User Interface
HU02392 All High Importance Validation in the Upload Support Package feature will reject new case number formats in the PMR field (show details)
Symptom None
Environment All systems
Trigger None
Workaround At v8.4.0.0 or later use the CLI command satask supportupload -pmr pmr_number -filename fullpath/filename
8.5.0.0 Support Data Collection
HU02417 All High Importance Restoring a reverse FlashCopy mapping to a volume that is also the source of an incremental FlashCopy mapping can take longer than expected (show details)
Symptom Performance
Environment All systems
Trigger None
Workaround None
8.5.0.0 FlashCopy
HU02422 All High Importance GUI performance can be degraded when displaying large numbers of volumes or other objects (show details)
Symptom Degraded Operation
Environment Systems running v8.3.1 or later
Trigger None
Workaround None
8.5.0.0 Graphical User Interface
HU02438 All High Importance Certain conditions can provoke a cache behaviour that unbalances workload distribution across CPU cores leading to performance impact (show details)
Symptom Performance
Environment Systems running v8.3.1 or later
Trigger None
Workaround None
8.5.0.0 Cache
HU02439 All High Importance An IP partnership between a pre-v8.4.2 system and v8.4.2 or later system may be disconnected because of a keepalive timeout (show details)
Symptom Degraded Operation
Environment Systems running 8.3.1 or earlier in IP partnerships with systems running v8.4.2 or later
Trigger None
Workaround Ensure both systems are running v8.4.2 or later
8.5.0.0 IP Replication
HU02460 All High Importance Multiple node warmstarts triggered by ports on the 32G fibre channel adapter failing (show details)
Symptom Multiple Node Warmstarts
Environment Systems running v8.3 or later using 32Gbps HBAs
Trigger None
Workaround None
8.5.0.0 Hosts
IT38015 All High Importance During RAID rebuild or copyback on systems with 16gb or less of memory, cache handling can lead to a deadlock which results in timeouts (show details)
Symptom Performance
Environment Systems with 16GB or less of memory
Trigger None
Workaround None
8.5.0.0 RAID
HU01209 All Suggested It is possible for the Fibre Channel driver to be offered an unsupported length of data resulting in a node warmstart (show details)
Symptom Single Node Warmstart
Environment Systems using Fibre Channel connectivity
Trigger None
Workaround None
8.5.0.0 Storage Virtualisation
HU02095 All Suggested The effective_used_capacity field of lsarray/lsmdisk commands should be empty for RAID arrays which do not contain overprovisioned drives. However, sometimes this field can be zero even though it should be empty. This can cause incorrect provisioned capacity reporting in the GUI (show details)
Symptom None
Environment Systems with non-FCM arrays
Trigger None
Workaround None
8.5.0.0 Graphical User Interface
HU02171 All Suggested The timezone for Iceland is set incorrectly (show details)
Symptom None
Environment Systems using the Icelandic timezone
Trigger None
Workaround None
8.5.0.0 Support Data Collection
HU02174 All Suggested A timing window issue related to remote copy memory allocation can result in a node warmstart (show details)
Symptom Single Node Warmstart
Environment Systems using remote copy
Trigger None
Workaround None
8.5.0.0 Global Mirror, Global Mirror with Change Volumes, Metro Mirror
HU02243 All Suggested DMP for 1670 event (replace CMOS) will shutdown a node without confirmation from user (show details)
Symptom None
Environment Systems with expired CMOS batteries
Trigger None
Workaround None
8.5.0.0 GUI Fix Procedure
HU02263 All Suggested The pool properties dialog in the GUI displays thin-provisioning savings, compression savings and total savings. In Data Reduction Pools, the thin-provisioning savings displayed are actually the total savings instead of the thin-provisioning savings only (show details)
Symptom None
Environment Systems running v8.2.1 or later using Data Reduction Pools
Trigger None
Workaround Subtract compression savings from thin-provisioning savings to get the actual number
8.5.0.0 Data Reduction Pools
HU02274 All Suggested Due to a timing issue in how events are handled an active quorum loss and re-acquisition cycle can be triggered with a 3124 error (show details)
Symptom None
Environment Systems running v8.3.1 or later
Trigger None
Workaround None
8.5.0.0 Quorum
HU02280 All Suggested Spectrum Control or Storage Insights may be unable to collect stats after a Tier 2 recovery or system powerdown (show details)
Symptom None
Environment Systems running v8.3.1.2 or later
Trigger None
Workaround None
8.5.0.0 System Monitoring
HU02291 All Suggested Internal counters for upper cache stage/destage I/O rates and latencies are not collected and zeroes are usually displayed (show details)
Symptom None
Environment Systems running v8.4 or later
Trigger None
Workaround None
8.5.0.0 Cache, System Monitoring
HU02292 & HU02308 All Suggested The use of maximum replication delay within Global Mirror may occasionally cause a node warmstart (show details)
Symptom Single Node Warmstart
Environment Systems using Remote Copy
Trigger None
Workaround None
8.5.0.0 Global Mirror
HU02303 & HU02305 All Suggested Configuration node warmstart will occur if mkhostcluster is run with -ignoreseedvolume and the ignored volumes have an id greater than 256 (show details)
Symptom Single Node Warmstart
Environment Systems running v8.3, or later, where ignored volumes have an id greater than 256
Trigger Run mkhostcluster with its -ignoreseedvolume option
Workaround Do not use the -ignoreseedvolume option with the mkhostcluster command
8.5.0.0 Hosts
HU02306 All Suggested An offline host port can still be shown as active in lsfabric and the associated host can be shown as online despite being offline (show details)
Symptom None
Environment Systems running v8.3 or later
Trigger None
Workaround None
8.5.0.0 Hosts
HU02325 All Suggested Tier 2 and Tier 3 recoveries can fail due to node warmstarts (show details)
Symptom None
Environment Systems running v8.4 with remote (LDAP) users that were created at v8.3.1 or earlier
Trigger None
Workaround Recreate all remote users after upgrading to v8.4
8.5.0.0 Reliability Availability Serviceability
HU02331 All Suggested Due to a threshold issue an error code 3400 may appear too often in the event log (show details)
Symptom None
Environment Systems using compression cards
Trigger None
Workaround None
8.5.0.0 Compression
HU02332 & HU02336 All Suggested When an I/O is received, from a host, with invalid or inconsistent SCSI data but a good checksum it may cause a node warmstart (show details)
Symptom Single Node Warmstart
Environment Systems running v7.8 or later
Trigger None
Workaround None
8.5.0.0 Hosts
HU02346 All Suggested A mismatch between LBA stored by snapshot and disk allocator processes in the thin-provisioning component may cause a single node warmstart (show details)
Symptom Single Node Warmstart
Environment Systems running v8.3.1 or later
Trigger None
Workaround None
8.5.0.0 Thin Provisioning
HU02366 All Suggested Slow internal resource reclamation by the RAID component can cause a node warmstart (show details)
Symptom Single Node Warmstart
Environment Systems running v8.2.1 or later
Trigger None
Workaround None
8.5.0.0 RAID
HU02367 All Suggested An issue with how RAID handles drive failures may lead to a node warmstart (show details)
Symptom Single Node Warmstart
Environment All systems
Trigger None
Workaround None
8.5.0.0 RAID
HU02375 All Suggested An issue in how the GUI handles volume data can adversely impact its responsiveness (show details)
Symptom Performance
Environment Systems running v8.3.1 or later with large numbers of volumes
Trigger None
Workaround None
8.5.0.0 Graphical User Interface
HU02381 All Suggested When the proxy server password is changed to one with more than 40 characters the config node will warmstart (show details)
Symptom Single Node Warmstart
Environment Systems using the system-wide web proxy server
Trigger Use chproxy CLI command to change password to one with >40 characters
Workaround Use a proxy password of <40 characters
8.5.0.0 Command Line Interface
HU02382 FS9200, FS9100, FS7200, FS5100, V7000, V5100 Suggested A complex interaction of tasks, including drive firmware cleanup and syslog reconfiguration, can cause a 10 second delay when each node unpends (eg during an upgrade) (show details)
Symptom None
Environment Systems running v8.2.1 or later that have a remote syslog server configured
Trigger None
Workaround None
8.5.0.0 System Update
HU02383 FS9200, FS9100, FS7200, FS5100, V7000 Suggested An additional 20 second IO delay can occur when a system update commits (show details)
Symptom None
Environment Systems running v8.2.1 or later that have a remote syslog server configured
Trigger None
Workaround Remove remote syslog servers from the configuration to reduce the additional delay to 10 seconds. It is not possible to completely eliminate the delay using a workaround
8.5.0.0 System Update
HU02385 All Suggested Unexpected emails from Inventory Script can be found on mailserver (show details)
Symptom None
Environment All systems
Trigger None
Workaround None
8.5.0.0 System Monitoring
HU02386 FS9200, FS9100, FS7200, FS5100, V7000 Suggested Enclosure fault LED can remain on due to race condition when location LED state is changed (show details)
Symptom None
Environment Systems running v8.1 or later
Trigger None
Workaround None
8.5.0.0 System Monitoring
HU02387 All Suggested When using the GUI the maximum Data Reduction Pools limitation incorrectly includes child pools (show details)
Symptom None
Environment Systems running v8.4 or later using Data Reduction Pools
Trigger Add a new Data Reduction Pool when 4 x parent and child pools already exist
Workaround Use CLI to create the new Data Reduction Pool
8.5.0.0 Data Reduction Pools
HU02391 All Suggested An issue with how websockets connections are handled can cause the GUI to become unresponsive requiring a restart of the Tomcat server (show details)
Symptom None
Environment All systems
Trigger None
Workaround None
8.5.0.0 Graphical User Interface
HU02405 FS5200 Suggested An issue in the zero detection of the new Message Passing (MP) functionality can cause thin volumes to allocate space when writing zeros (show details)
Symptom None
Environment FlashSystem 5200 systems
Trigger None
Workaround When writing zeros from a host, always submit IO to the preferred node
8.5.0.0 Message Passing
HU02411 FS9200, FS9100, FS7200, FS5100, V7000, V5100 Suggested An issue in the NVMe drive presence checking can result in a node warmstart (show details)
Symptom Single Node Warmstart
Environment Systems with NVMe drives
Trigger None
Workaround None
8.5.0.0 NVMe
HU02416 All Suggested A timing window issue in DRP can cause a valid condition to be deemed invalid triggering a single node warmstart (show details)
Symptom Single Node Warmstart
Environment Systems using DRP
Trigger None
Workaround None
8.5.0.0 Data Reduction Pools
HU02419 All Suggested During creation of a drive FRU id the resulting unique number can contain a space character which can lead to CLI commands, that return this value, presenting it as a truncated string (show details)
Symptom None
Environment Systems running v8.3.1 or later
Trigger None
Workaround None
8.5.0.0 Command Line Interface, Drives
HU02425 All Suggested An issue in the handling of internal messages, when the system has a high IO workload to two or more different FlashCopy maps in the same dependency chain, can result in incorrect counters. The node will warmstart to clear this condition. (show details)
Symptom Single Node Warmstart
Environment Systems using FlashCopy
Trigger None
Workaround None
8.5.0.0 FlashCopy
HU02426 All Suggested Where an email server accepts the STARTTLS command during the initial handshake if TLS v1.2 is disables or not supported then the system will be unable to send email alerts (show details)
Symptom None
Environment Systems running v8.4 or later connecting to a mail server that does not support/enable TLS v1.2
Trigger TLS v1.2 not supported or enabled on mail server
Workaround Enable TLS v1.2 on mail server if available
8.5.0.0 System Monitoring
HU02437 All Suggested Error 2700 is not reported in the Event Log when an incorrect NTP server IP is entered (show details)
Symptom None
Environment All systems
Trigger None
Workaround None
8.5.0.0 System Monitoring
HU02443 All Suggested An inefficiency in the RAID code that processes requests to free memory can cause the request to timeout leading to a node warmstart (show details)
Symptom Single Node Warmstart
Environment Systems running v8.2.1 or later
Trigger None
Workaround None
8.5.0.0 RAID
HU02444 All Suggested Some security scanners can report unauthenticated targets against all the iSCSI IP addresses of a node (show details)
Symptom None
Environment Systems running v8.4.0 or later
Trigger None
Workaround None
8.5.0.0 Hosts, iSCSI
HU02445 All Suggested When attempting to expand a volume, if the volume size is greater than 1TB the GUI may not display the expansion pop-up window (show details)
Symptom None
Environment Systems running v8.4.2 or later
Trigger None
Workaround Use the CLI
8.5.0.0 Graphical User Interface
HU02448 All Suggested IP Replication statistics displayed in the GUI and XML can be incorrect (show details)
Symptom None
Environment Systems running v8.4.2 or later
Trigger None
Workaround None
8.5.0.0 System Monitoring
HU02450 SVC, FS9200, FS9100, FS7200, FS5100, FS5200, V7000, V5100 Suggested A defect in the frame switching functionality of 32Gbps HBA firmware can cause a node warmstart (show details)
Symptom Single Node Warmstart
Environment Systems running v8.3.1 or less using 32Gbps HBAs
Trigger None
Workaround None
8.5.0.0 Hosts
HU02452 SVC, FS9200, FS9100, FS7200, FS5100, FS5200, V7000, V5100 Suggested An issue in NVMe I/O write functionality can cause a single node warmstart (show details)
Symptom Single Node Warmstart
Environment Systems running v8.4 or later using NVMe
Trigger None
Workaround None
8.5.0.0 NVMe
HU02454 All Suggested Large numbers of 2251 errors are recorded in the Event Log even though LDAP appears to be working (show details)
Symptom None
Environment Systems running v8.3.1 or later
Trigger None
Workaround None
8.5.0.0 LDAP
HU02461 All Suggested Livedump collection can fail multiple times (show details)
Symptom None
Environment Systems running v8.4 or later
Trigger None
Workaround None
8.5.0.0 Support Data Collection
HU02593 All Suggested NVMe drive is incorrectly reporting end of life due to flash degradation (show details)
Symptom Alert 1680 and event 090010 logged into the event log, indicating that the drive has reached end of life
Environment V8.2,V8.2.1,V8.3.0,V8.3.1
Trigger None
Workaround None
8.5.0.0 Drives
IT33996 All Suggested An issue in RAID where unreserved resources fail to be freed up can result in a node warmstart (show details)
Symptom Single Node Warmstart
Environment Systems running v8.3.1 or later
Trigger None
Workaround None
8.5.0.0 RAID
IT34949 All Suggested lsnodevpd may show DIMM information in the wrong positions (show details)
Symptom None
Environment Systems running v8.4 or later
Trigger None
Workaround None
8.5.0.0 Command Line Interface, Graphical User Interface
IT34958 All Suggested During a system update a node returning to the cluster, after upgrade, may warmstart (show details)
Symptom Single Node Warmstart
Environment Systems running v8.2.1 or later
Trigger None
Workaround None
8.5.0.0 System Update
IT37654 All Suggested When creating a new encrypted array the CMMVC8534E error (Node has insufficient entropy to generate key material) can appear preventing array creation (show details)
Symptom Configuration
Environment Systems using encryption
Trigger None
Workaround Power cycle the affected node
8.5.0.0 Encryption
IT38858 All Suggested Unable to resume Enable USB Encryption wizard via the GUI. The GUI will display error CMMVC9231E (show details)
Symptom None
Environment Systems running v8.4 or later
Trigger Close/refresh browser before wizard is complete
Workaround None
8.5.0.0 Graphical User Interface

4. Useful Links

Description Link
Support Websites
Update Matrices, including detailed build version
Support Information pages providing links to the following information:
  • Interoperability information
  • Product documentation
  • Limitations and restrictions, including maximum configuration limits
Spectrum Virtualize Family of Products Inter-System Metro Mirror and Global Mirror Compatibility Cross Reference
Software Upgrade Test Utility
Software Upgrade Planning