Reviving A Cisco Ioa Cluster - Cisco MDS 9000 series Configuration Manual

Cluster Recovery Scenarios
S e n d d o c u m e n t a t i o n c o m m e n t s t o m d s f e e d b a c k - d o c @ c i s c o . c o m

Reviving a Cisco IOA Cluster

To revive a cluster on the switch that has the latest Cisco IOA configuration version, use these
procedures.
This procedure is used to revive a cluster when one or more switches are offline and the cluster is
nonoperational (for example, due to a quorum loss). The recovery procedure includes deleting one or
more offline switches and then reviving the cluster on the remaining switches.
A Cisco IOA cluster must only be revived on the switch with the latest IOA configuration version as
Caution
displayed by the show IOA cluster detail command. Reviving the cluster on a switch that does not have
the highest configuration version can result in stale configuration.
Note The following procedure assumes that switch1 has the latest IOA configuration version. The steps shown
for switch2 should be carried out for every switch that needs to be removed before reviving the cluster.
Step 1: Shut down the cluster on all the nodes in the cluster, by performing this task:
Command
Step 1
switch# config t
Step 2
switch(config)# ioa cluster ABC
switch(config-ioa-cl)# shutdown
Step 2: Delete the cluster configuration on each node that needs to be removed from the cluster, by
performing this task:
Command
Step 1
switch# config t
Step 2
switch(config)# no ioa cluster ABC
Step 3: For each node that needs to be removed, delete the node configuration from the remaining nodes
in the cluster by performing this task:
Command
Step 1
switch# config t
Step 2
switch(config)# ioa cluster ABC
switch(config-ioa-cl# no node
switch2
Step 4: Restart the cluster on the remaning nodes, by performing this task:
Command
Step 1
switch# config t
Step 2
switch(config)# ioa cluster ABC
switch(config-ioa-cl)# no shutdown
Cisco MDS 9000 Family I/O Accelerator Configuration Guide
B-8
Appendix B Cluster Management and Recovery Scenarios
Purpose
Enters configuration mode.
Shuts down the ABC cluster on the offline switch.
Purpose
Enters configuration mode.
Deletes the ABC cluster configuration.
Purpose
Enters configuration mode.
Deletes switch2 from the configuration.
Repeat for every switch that needs to be deleted.
Note
Purpose
Enters configuration mode.
Restarts the cluster on the switch.
OL-20708-01, Cisco MDS NX-OS Release 5.0(1a)