Release Notes

Table 11. Issues resolved in Storage Center 7.5.1 (continued)
Issue Functional area Description
SCOS-61101 Vendor If a Veeam backup job fails, but the failed backup job is successful when it
is retried, Veeam might create a snapshot without an expiration date on the
Storage Center.
Known issues
The following high severity issues remain unresolved in this release:
Table 12. Known issues in Storage Center 7.5.1
Issue Functional area Description Workaround/Resolution
SCOS-62354 Alerts, Logs, and
Reports
For SCv3000 Series, SC5020, and SC7020
storage systems, the BIOS and iDRAC may
not display the correct DIMM speed.
The incorrect DIMM speed displayed in the
BIOS and iDRAC can be ignored.
SCOS-60273 Alerts, Logs, and
Reports
Applications that use third-party LDAP
clients may cause Windows to generate
incorrect Event ID 2889 message entries.
This issue occurs if LDAP interface events
are logged and the LDAPServerIntegrity
setting is set to 2.
The Event ID 2889 message entries can be
ignored.
SCOS-38226 Alerts, Logs, and
Reports
In rare instances, a Sync LiveVolume Auto
Failover alert is not cleared when the
condition is corrected.
Use Storage Manager to manually
acknowledge and clear the alert.
SCOS-13237 Data Reduction The Storage Type Data Reduction
statistics might be incorrect if the amount
of data eligible for Data Reduction contains
fewer than 256 pages.
None
SCOS-52646 Hardware The boot cycle of an SC9000 controller
might stop responding or restart several
times because of an issue in the BIOS or
pre-boot sequence.
Perform a cold boot of the SC9000
controller by disconnecting both power
cables from the controller, waiting one
minute, and then reconnecting the power
cables to controller.
SCOS-49735 Hardware On SCv3000 series, SC5020, or SC7020
storage systems, the ports on Intel
branded SFP+ modules in XL710 mezzanine
cards might go into an infinite up and down
loop.
Use Dell branded SFP+ modules in XL710
mezzanine cards instead of Intel branded
SFP+ modules.
SCOS-60092 Live Volume and
Replication
If Live Volume is enabled on a storage
system, and a Live Volume auto failover
occurs during a Storage Center firmware
upgrade, the Live Volume on the storage
system might become inaccessible.
Disable Live Volume Auto Failover
before performing upgrades or known
maintenance on a storage system. Enable
Live Volume Auto Failover after the work
on the storage system is complete.
SCOS-59752 Live Volume and
Replication
When replicating from a Storage Center
to a PS Group, if the size of the replica
reserve is set to 105%, an in-progress
replica is deleted on the destination PS
Group when the borrowing space limit
is exceeded. The source Storage Center
reports that the remote disk is down and
it enters a retrying state.
Reseed the replication and set the size of
the replica reserve to 200%.
SCOS-41280 Live Volume and
Replication
Using a cluster shared volume (CSV)
on a Storage Center within a Windows
2016 cluster solution might result in an
I/O failure during an infrastructure fault
Use redundant physical switches to reduce
the possibility of the I/O failure.
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