Release Notes

Fixed Issues Related to Storage Management
The following issues are fixed in Storage Center 7.4:
Table 20. Fixed Storage Management Issues in Storage Center 7.4.21
Issue Description
SCOS-61881 Rebalancing ports on a storage system might cause volumes to go down because of a change
made in Storage Center 7.4.20.
Table 21. Fixed Storage Management Issues in Storage Center 7.4.20
Issue Description
SCOS-61122 The operation mode of a device copy might be incorrect when RAID devices go into a
degraded state, which could result in data integrity issues.
SCOS-60986 In a dual-controller storage system, a controller might reset because of a segment violation in
a SCSI initiator command.
SCOS-60721 RAID scrubs are placed on hold while Storage Center performs a RAID restripe.
SCOS-60271 When drives are added to a storage system, the RAID Device copies that occur might result in
RAID devices that are considered unscrubbed and writing to these RAID devices might result
in performance degradation.
SCOS-60244 On a storage system with embedded iSCSI ports, the ports might stop accepting new TCP
connections due to retransmit errors.
SCOS-60231 A storage system might experience front-end latency because of repeated attempts to start a
Data Progression cycle.
SCOS-60203 On a dual-controller storage system with FC and iSCSI ports, if the front-end ports are
rebalanced while the iSCSI ports are going up and down on both controllers, different FC ports
may become unavailable which might cause a storage outage on a controller.
SCOS-59488 A controller might reset because of a failure with the extended copy (XCOPY) code.
SCOS-58972 In a dual-controller storage system, both controllers might reset repeatedly after an improper
shutdown of the storage system.
SCOS-58834 In a dual-controller storage system with front-end SAS connections to a non-Windows host, a
controller might reset during initialization because of a null pointer exception.
SCOS-57356 When the Expire Time of a snapshot is changed to Do Not Expire and a local copy of the
snapshot is created with the Copy Snapshots option selected, a local copy of the snapshot is
created that uses the expiration time of the original Snapshot Profile. If the expire time of the
original Snapshot Profile is in the past, the copy of the snapshot expires immediately.
Table 22. Fixed Storage Management Issues in Storage Center 7.4.10
Issue Description
SCOS-58492 Storage Center fails to account for extent copies when retrying RAID rebuilds in a read failure
state.
SCOS-58292 Updating a storage system with a large number of MC sessions from Storage Center 7.2.51 to
Storage Center 7.3 might cause the MC sessions to time out and result in a controller reset.
SCOS-56490 RAID restripe might fail to complete due to a PagePoolDevice being marked with a removal
failure.
SCOS-56041 A controller might reset if a new SED drive is moved from a Secured disk folder to a Non-
Secured disk folder while the SED is being managed.
SCOS-55888 A controller might reset after a memory allocation failure.
SCOS-55685 Storage Center might fail to delete a disk object or change the disk folder for a disk object if
the request to perform the operation is stuck.
SCOS-50357 A controller might reset if a Secondary Storage device prune decision occurs while a
Secondary Storage device is being torn down.
15