Change to other SAN in HACMP env.

[cometoAIX]

Hi, My company has new SAN to replace the old one. So we must do the migration to the new.

But, we've already have HACMP 02 node (active - standby) with disk heartbeat on old SAN. Please help me change new SAN without reconfig HACMP.

Thanks,

 

[khalidaaa]

IMHO One way to do it is to install your new SAN and attach it to the machine (I hope it is a P5 or P6) then create an LPAR with exactly similar setup as your HACMP clustered machine (similar disks setup).

Then just backup the old machine and restore to that new one. Once you are satisfied with the HACMP after testing (in isolation to the production one) the new environment then just shutdown the old cluster and go live on the new one!

Regards,
Khalid

 

[ogniemi]

I am pretty sure you can switch to new SAN without any downtime. Temporatily you will have both SANs configured in HACMP.

In short, configure you new SAN on your cluster nodes, migrate your data (eg. via mklvcopy/mirrorvg and then rmlvcopy/unmirrorvg), add new hbeat communication lines and the remove old hbeat communication lines.