06-29-2014
1) Yes, but with disastrous results ( just a question of time (short…)). So that is why you mount VG in SGMC as exclusive the same is true with AIX HACMP etc..
Normally you choose one server as the master, the reason is that server gets all new/change configuration when validated are replicated to the other node (when 2 nodes).
So to be sure you are talking of same VG both sides it is wise to give them same name and same major number when you create the VG on both side…
From home and not having touched to a HP cluster for now 8 years, it is difficult for me to say more…( notes are at work…)
One thing be sure you have same devices both sides, when a VG ( on master) is completed with all its PV and Lv defined, you use vgexport command with -p (preview) to create a map file etc you copy on the second node and use vgimport
2) a cluster is in short 2 servers configured to "host" on or more package that could be seen as virtual servers if you added LUNs that are for a package, they should be included to it… Not the same as creating a new package
There are scripts to help you through, and most important there are scripts after all change to update the package both sides and TEST both sides, the very important part of an admin life with cluster is to check its integrity, if the MCSG checking script fails, you are to correct promptly before anything happens or you will be in big trouble...
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