This is the release note for the 8.4.1 release and details the issues resolved in 8.4.1.0.
Note: This release is a Non-Long Term Support (Non-LTS) release. Non-LTS code levels are not intended to receive any PTFs. If issues are encountered the only resolution is likely to be upgrade to a later LTS or Non-LTS release.
For details of the new Continuous Development release strategy refer to the Spectrum Virtualize Family of Products Upgrade Planning page.
This document was last updated on 12 March 2025.
Note. Detailed build version numbers are included in the Update Matrices in the Useful Links section.
| Details | Introduced |
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Due to a known issue which may occur following a cluster outage while a DRAID1 array is expanding, expansion of DRAID1 arrays is not supported on 8.4.0 and higher. This is a known issue that will be lifted in a future PTF. The fix can be tracked using APAR SVAPAR-132123. |
8.4.0.0 |
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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 release. The fix can be tracked using APAR HU02403. |
8.4.0.0 |
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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 |
A release may contain fixes for security issues, fixes for APARs or both. Consult the table below to understand the complete set of fixes included in the release.
APAR |
Affected Products |
Severity |
Description |
Resolved in |
Feature Tags |
|---|---|---|---|---|---|
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| HU02340 | All | HIPER | High replication workloads can cause multiple warmstarts with a loss of access at the partner cluster (show details) | 8.4.1.0 | IP Replication |
| 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) | 8.4.1.0 | Hosts |
| HU02319 | All | High Importance | The GUI can become unresponsive (show details) | 8.4.1.0 | 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) | 8.4.1.0 | Performance |
| 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) | 8.4.1.0 | System Monitoring |
| HU02362 | FS5100, FS5200, FS7200, FS9100, FS9200, SVC, V5100, V7000 | High Importance | When the RAID scrub process encounters bad grains, the peak response time for reads and writes can be adversely impacted (show details) | 8.4.1.0 | RAID |
| HU02376 | All | High Importance | FlashCopy maps may get stuck at 99% due to inconsistent metadata accounting between nodes (show details) | 8.4.1.0 | FlashCopy |
| HU02325 | All | Suggested | Tier 2 and Tier 3 recoveries can fail due to node warmstarts (show details) | 8.4.1.0 | 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) | 8.4.1.0 | 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) | 8.4.1.0 | Hosts |
| HU02335 | All | Suggested | Cannot properly set the site for a host in a multi-site configuration (hyperswap or stretched) via the GUI (show details) | 8.4.1.0 | 3-Site using HyperSwap or Metro Mirror, Graphical User Interface, HyperSwap |
| Description | Link |
|---|---|
| Support Websites | |
| Update Matrices, including detailed build version | |
Support Information pages providing links to the following information:
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| Spectrum Virtualize Family of Products Inter-System Metro Mirror and Global Mirror Compatibility Cross Reference | |
| Software Upgrade Test Utility | |
| Software Upgrade Planning |