Represents the description of an EMC Centera fixed content device.
The following tables list the members exposed by ICenteraFixedContentDevice.
Public Properties
Name | Description | |
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AuditedDeletePrefix | Specifies a prefix string to use when deleting a C-Clip using the audited delete function for an object. If the string is blank, audited delete will not be invoked ( will be used). Otherwise, the string will be used as the prefix of the delete reason passed to (the document ID GUID is appended to the prefix string to form the complete delete reason text). |
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BlobReadAheadSize | Specifies the maximum buffer size used to determine if the entire content blob should be read with a single call to . If the content size is less than or equal to the parameter value, the entire blob is read using a single call (a buffer of content size must be allocated), and the data is passed back via the callers data stream as requested. If the content size is greater than the parameter value, is used to read only the data of the size requested by the caller (no buffer is created). |
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BlobWriteCollisionsAvoidanceFlag | Specifies the collision avoidance option for an object. When creating Centera content, the provider combines this value with FP_OPTION_CLIENT_CALCID_STREAMING to form the options parameter of . There are three possible values:
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ConcurrentReaders | Specifies the maximum number of concurrent Centera reader threads allowed in the object store service process. |
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DefaultRetentionPassThrough | Specifies whether the retention period is set to the current Centera system setting (true) or not (false). This flag only applies when a fixed storage area's retention period is configured to use the retention period of the fixed content device (that is, when the fixed storage area's property is set to -2). Normally the provider will examine the value of the FP_RETENTION pool capability and explicitly set the retention period to either zero or infinite, depending on the capability setting. When DefaultRetentionPassThrough is set to 1, the retention period is set to RETENTION_PERIOD_DEFAULT (meaning that the Clips use the current Centera system setting, which can be altered by changing the compliance mode of the system). |
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EmbeddedDataThreshold | Specifies the maximum size threshold in bytes for embedding content in the C-Clip. By default this value is zero (content is never embedded). The maximum value for this parameter is 102400 (bytes). If a greater value is supplied, it will be reduced to 102400 internally by the Centera provider. Note that this limit is per content element. The overall size of embedded data can exceed this limit if multiple content elements are embedded in a single Clip (up to the maximum size of the C-Clip). |
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FPOpenStrategy | Specifies the approach used by to open connections. Possible values are:
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FPPoolBufferSize | Specifies the size in bytes of the internal C-Clip buffer. The default value is 16*1024. |
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FPPoolClusterNonAvailTime | Specifies the time in seconds that a cluster is marked as not available before retrying with a probe. Other clusters in the pool will be used while the cluster is unavailable. The default value is 600 (10 minutes). |
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FPPoolDefaultCollisionAvoidance | Indicates whether collision avoidance is enabled at the pool level (true) or not (false). By default, collision avoidance is not enabled. If enabled, an additional blob discriminator for read and write operations of C-Clips and blobs will be used. ( is used in tag write and only applies to blobs.) |
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FPPoolEnableMulticlusterFailover | Specifies whether multi-cluster failover is enabled (true) or not (false). By default, multi-cluster failover is enabled. |
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FPPoolMaxConnections | Specifies the maximum number of sockets that will be allocated. (Sockets are used to communicate with the Centera clusters managed in each pool object.) The default value is 100. |
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FPPoolMulticlusterDeleteStrategy | Specifies the failover strategy for delete operations ( and ) and the deprecated purge operations ( and ). Possible values are:
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FPPoolMulticlusterExistsStrategy | Specifies the failover strategy for exists operations ( and ). Possible values are:
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FPPoolMulticlusterQueryStrategy | Specifies the failover strategy for query operations ( ). Possible values are:
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FPPoolMulticlusterReadStrategy | Specifies the failover strategy for read operations ( , , and ). Possible values are:
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FPPoolMulticlusterWriteStrategy | Specifies the failover strategy for write operations ( and ). Possible values are:
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FPPoolPrefetchSize | Specifies the size of the prefetch buffer. (The buffer is used to assist in determining the size of the blob.) The default size is 32 KB. |
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FPPoolRetryCount | Specifies the number of times an operation will be retried before failure is reported. The default value is 6. If the first execution of the function fails, the system will retry the function 6 more times (for a total of 7 tries). |
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FPPoolRetrySleep | Specifies the time to wait in milliseconds before a failed API function should be retried. If not specified, an exponential back-off scheme is used where the sleep time increases after each retry, starting at 1 second and then doubling after each subsequent try. |
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FPPoolTimeout | Specifies the TCP/IP Connection timeout in milliseconds. The default value is 120000 (2 minutes). |
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MaxReaderSemaphoreWaitTime | Specifies the maximum waiting time in milliseconds to get a read semaphore for a read operation before the system fails the operation. |
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NeverDeleteClipsOrContent | Indicates whether an object prevents the deletion of Clips or Blobs on the Centera device (true) or not (false). If true, the provider never attempts to delete Clips or Blobs and all content is left completely intact on the Centera device. Note that normally this setting has no impact on enforcement of the retention period (the storage area honors the retention period and prevents deletion when appropriate). |
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PoolAddress | Specifies the Centera pool address that is passed to the class constructor as the PoolAddress parameter (which identifies the location of the Centera fixed content device). This pool address will be used when the Content Engine server is running within the site identified by the Site property of this object. |