Release Notes

Table 12. Fixed Hardware Issues in Storage Center 7.4.2
Issue Description
SCOS-56536 Read errors might occur if Storage Center attempts to read data from a T10-PI drive after a
Crypto Erase has been performed, but before Storage Center initializes the drive.
SCOS-55569 On storage systems that use Chelsio iSCSI HBAs with the T420 driver, the 768 MB limit of SG
Payload pool size was increased to 1 GB to prevent iSCSI connection timeouts.
SCOS-55572 On storage systems that use Chelsio T3 iSCSI HBAs, connectivity issues might occur if the
iSCSI driver memory allocations exceed a pre-defined threshold.
SCOS-52053 A Storage Center that is in distributed spare mode might select the wrong disk spare for
SC460 or SCv360 expansion enclosures.
SCOS-49124 Intermittent erroneous battery failures might occur on SC4020 and SCv2000 series storage
systems because of an issue with the BMC firmware.
Fixed Issues Related to Licensing, SupportAssist, and Updating
The following issues are fixed in Storage Center 7.4:
Table 13. Fixed Licensing, SupportAssist, and Updating Issues in Storage Center 7.4.21
Issue Description
SCOS-61862 If the iDRAC login credentials have been changed on an SC5020 or SC5020F storage system
that is running Storage Center 7.4.20 or being updated to Storage Center 7.4.20, the storage
system controllers might fail to boot.
Table 14. Fixed Licensing, SupportAssist, and Updating Issues in Storage Center 7.4.20
Issue Description
SCOS-59083 During a Storage Center software update, the lead controller reboots and sends a Drive Self
Test (DST) command to multiple drives. The DST command might cause some drives to go
down on the peer controller, which is now the lead controller.
SCOS-58699 If a storage system is updated from Storage Center version 6.4.x or earlier to Storage Center
version 7.3.1 or later, a problem with the system metadata might impact host I/Os.
Table 15. Fixed Licensing, SupportAssist, and Updating Issues in Storage Center 7.4.2
Issue Description
SCOS-54886 Storage Center might stop sending SupportAssist diagnostic data to CloudIQ if the Phone
Home Daemon enters a recursive loop.
SCOS-54088 A Storage Center update check might report an update blocker because failed disks that have
been previously replaced are not ignored when the update check is performed.
SCOS-53468 Map OS definitions might fail to load after updating a storage system from Storage Center 6.7
to Storage Center 7.2 or later.
SCOS-52506 Storage Center might fail to authenticate a Storage Center user during a service affecting
update if the password for user is longer than 16 characters.
Fixed Issues Related to Replication and Live Volume
The following issues are fixed in Storage Center 7.4:
Table 16. Fixed Replication and Live Volume Issues in Storage Center 7.4.10
Issue Description
SCOS-58967 A controller might reset because of a null pointer error that occurs during replication after
updating to Storage Center 7.4.2.
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