5.Restart the HACMP for AIX software on the node using the smit clstart fastpath and verify that the node successfully joined the cluster.

6.Repeat Steps 1 through 5 on the remaining cluster nodes.

Figure 15 below shows the procedure:

Fallover of

 

 

System A

System A

 

 

rejoins the

 

 

 

cluster

 

System A

System B

 

System A

System B

System A

System B

Apply PTFs

 

 

Test

to System A

 

 

System A

 

System A

System B

 

 

 

 

System A's

 

 

 

Resource

 

 

 

System B's

 

 

 

Resource

Figure 15. Applying a PTF to a Cluster Node

Along with the normal rules for applying updates, the following general points should be observed for HACMP clusters:

Cluster nodes should be kept at the same AIX maintenance levels wherever possible. This will, of course, not be true while the update is being applied, but should be true at all other times.

Cluster Management and Administration 175

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IBM SG24-5131-00 manual Fallover System a Rejoins Cluster