Release Notes

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43
)Cisco MDS 9000 Family Release Notes for Cisco MDS NX-OS Release 5.0(1a)
OL-21012-01
Caveats
Symptom: An IVR switch was stuck in the advertising state shortly after a zone set activation was
received by IVR. The zone set activation was complete, but IVR remained stuck in the advertising
state.
Workaround: This issue is resolved.
• CSCte46571
Symptom: The show cores command displays the timestamp of the core files, but does not include
the year.
Workaround: This issue is resolved.
• CSCtd55394
Symptom: If the ES or NS storage LUNs that are part of DMM are reconfigured when a DMM job
is running on these LUNs, the DMM job will fail because the storage array (either ES or NS) returns
CHECK CONDITION ASCQ 0x3F.
Workaround: This issue is resolved.
• CSCsu96762
Symptom: The crossbar links between an MDS fibre channel switching module and a fabric module
are high-speed serials links, and on rare occasions, they can get out of sync. Because of this, a
mechanism is in place in the NX-OS software to recover from sync loss. If the sync loss recovery is
successful, the module that had the sync loss stays up. In the event of crossbar sync loss, there is
packet loss. In extremely rare situations, it is possible to have a continuous sequence of sync loss
followed by sync loss recovery.
Workaround: This issue is resolved. A crossbar manager has been added to NX-OS Release 5.0(1a)
that does the following:
1. Reloads the switching module if there are numerous recoverable sync losses within a given time
period.
2. Reloads the switching module up to three times if the recoverable sync loss persists.
3. Powers down the switching module if the failure continues to persist.
• CSCsz01436
Symptom: The snmp-server system-shutdown command is on by default and cannot be disabled.
Workaround: This issue is resolved.
• CSCte42184
Symptom: SAN extension ports on the fixed slot of a MDS 9222i switch do not require a license.
However, the fact that a license is not required is not clear from the output of the show license usage
command.
Workaround: This issue is resolved. The output of the show license command has been modified
to explicitly show that the SAN extension license for the base switch is included.
Open Caveats
• CSCto68011
Symptom: The fcdomain service on both supervisor modules fails, which results in a reload of the
device. An error message similar to the following is displayed:
'' %SYSMGR-2-SERVICE_CRASHED: Service ''fcdomain'' (PID 4688) hasn't caught signal 11
(core will be saved)''