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Old 01-04-2008, 09:24 PM
Pete's
 
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Default HACMP Configuration question

Vital Info:
2 Node cluster, p660-6h1's running AIX 4.3.3 ml09 with HACMP 4.4.1.
It has shared SCSI disks using 2 2104-DU3's with 10 total Physical
Volumes. Note, I know that my OS and HA software is unsupported right
now and I am planning on upgrading.

Currently 'Node 1'(which is the primary node) has the cluster
resources and is running fine.

'Node 2'(which is the secondary) is in the cluster, but, has lost all
information regarding the shared disk, i.e. PVID's and Volume Group
information is gone. Just a note, was troubleshooting via diag and it
had issues with a scsi card which happened to be attached to shared
disk. Diag recommended to remove the device and run cfgmgr which I
did and should not have(I knew better not too). Ok, I need to get the
configuration corrected and the following is how I plan on doing it:

On Node 2
1. Assign PVID's to the shared disk since they no longer have any
assigned.
2. Shutdown the cluster software.
On Node 1
3. Shutdown the cluster software
4. exportvg vg01
On Node 2
5. importvg vg01
6. varyoffvg vg01
On Node 1
7. importvg vg01
8. varyoffvg vg01
9. Start the cluster software.
On Node 2
10. Start the cluster software.

I tried this before except that the PV's did not have id's assigned
and it failed(I'm assuming it failed because of no pvid's).

Question(s), Am I missing anything in the steps outlined above?
Should assign the pvid's, skip the exportvg/importvg and try a
failover and see if the 'Lazy Update' update the volume group
information? Is there anything I should watch out for?

TIA
Pete's
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