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If a VSAN has an ID in the reserved range, change that VSAN ID to any VSAN ID that is not used or reserved.
All Connectivity May Be Lost During Upgrades if vNIC Failover and NIC Teaming Are Both Enabled
All connectivity may be lost during firmware upgrades if you have configured both Enable Failover on one
or more vNICs and you have also configured NIC teaming/bonding at the host operating system level. Please
design for availability by using one or the other method, but never both.
To determine whether you have enabled failover for one or more vNICs in a Cisco UCS domain, verify the
configuration of the vNICs within each service profile associated with a server. For more information, see
the Cisco UCS Manager configuration guide for the release that you are running.
Impact of Upgrade from a Release Prior to Release 1.3(1i)
An upgrade from an earlier Cisco UCS firmware release to release 1.3(1i) or higher has the following impact
on the Protect Configuration property of the local disk configuration policy the first time servers are associated
with service profiles after the upgrade:
Unassociated Servers
After you upgrade the Cisco UCS domain, the initial server association proceeds without configuration
errors whether or not the local disk configuration policy matches the server hardware. Even if you
enable the Protect Configuration property, Cisco UCS does not protect the user data on the server if
there are configuration mismatches between the local disk configuration policy on the previous service
profile and the policy in the new service profile.
If you enable the Protect Configuration property and the local disk configuration
policy encounters mismatches between the previous service profile and the
new service profile, all subsequent service profile associations with the server
are blocked.
Note
Associated Servers
Any servers that are already associated with service profiles do not reboot after the upgrade. Cisco UCS
Manager does not report any configuration errors if there is a mismatch between the local disk
configuration policy and the server hardware.
When a service profile is disassociated from a server and a new service profile associated, the setting
for the Protect Configuration property in the new service profile takes precedence and overwrites the
setting in the previous service profile.
Hardware-Related Guidelines and Best Practices for Firmware Upgrades
The hardware in a Cisco UCS domain can impact how you upgrade. Before you upgrade any endpoint, consider
the following guidelines and best practices:
Cisco UCS Manager GUI Configuration Guide, Release 2.0
OL-25712-04 189
Firmware Upgrades