In a scenario where I have an existing Volume Group which is defined in a 2 node HACMP Cluster's resource group that fails between the two nodes do I *NEED* to run a full HACMP synchronize after I use CSPOC to add the disk(s) to the Volume group?
I have always been extremely careful when adding disks to a HACMP controlled VGs.
My theory is that I do not need to run a sync for the following reason;
The Resource group *only* knows about the VG name and therefore the VGDA of the Volume Group is the real owner of that information i.e what disks are members of the volumegroups etc... so as long as I run the addition through CSPOC both nodes odm's are up to date with disk info.. and as the cluster definition itself doesn't contain specific disk info it should be ok?
I would be grateful if someone could add someone could give me some input just to clarify my theory...
I have always tended to recommend outages so I can do this disk add in the safest way. I know that the cluster services can get flakey at best when multiple syncs are ran with the cluster up...
Thanks..
G
I have always been extremely careful when adding disks to a HACMP controlled VGs.
My theory is that I do not need to run a sync for the following reason;
The Resource group *only* knows about the VG name and therefore the VGDA of the Volume Group is the real owner of that information i.e what disks are members of the volumegroups etc... so as long as I run the addition through CSPOC both nodes odm's are up to date with disk info.. and as the cluster definition itself doesn't contain specific disk info it should be ok?
I would be grateful if someone could add someone could give me some input just to clarify my theory...
I have always tended to recommend outages so I can do this disk add in the safest way. I know that the cluster services can get flakey at best when multiple syncs are ran with the cluster up...
Thanks..
G