San:

hi
We have 2 AIX nodes running with HACMP and all of them connected to SAN,
Our shared storage is shark; I need to create shared volume group and I need the HACMP take a ware of it.
Regards

Create a volume on the ESS, accessable from both nodes, a VG on one of the nodes, define a resource group in HACMP, varyoff the VG and import it on the secondary node, then varyoff it again and varyon it on the primary node.

What you have to do exactly is depending on which kind of cluster you have (rotating or cascading), if you have dpo (data path optimizer) installed, etc., etc.

Still, you do not make the impression that you are all too knowledgeable about HACMP and my advice is not to try to change HACMP configurations without knowing what you do.

bakunin