Veritas Failover Package and ASM

[krischan]

Hi Guys,
I'm currently looking for a whitepaper or a best practice documentation on how to create failover packages (Veritas for us) together with an Oracle instance running datafiles in ASM.
Can anyone gimme a hint where to find something like this?

best regards
Christian

[Duncan Edmonstone]

Krischan,

Assuming you are talking about ASM onto raw disk on HP-UX you may be out of luck.

This configuration isn't supported with Serviceguard due to the way ASM works (I believe the problem is that when an ASM instance is stopped on one node it doesn't actually close the raw device file correctly - or something like that). As this isn't a Serviceguard issue per se, but more down to the interaction of ASM and disk devices, it will most likely also apply to VCS as well.

If you're intending to use ASM on top of a volume manager such as VxVM, you may have more luck with that...

HTH

Duncan

[krischan]

Hi again,
thanks for the response.
I think I should try to manually "switch" the package.
1. Stop the client instance
2. dismount ASM diskgroup from client instance
3. switch client instance to second node
4. mount ASM diskgroups on 2nd node
5. start client instance

I think then I can test if I can read/write to the disks behind the RAW's.

best regards
Christian