HACMP DR

[John M]

I've got a running cluster in one location that consists of two
p660-6H1's. My question is... I need to recover the cluster at
Sunguard. I have a Sysback tape of the O/S and the data is backed up
another way. How do I restore this Sysback backup to a single
p660-6H1? What are the issues and/or changes I have to make? Does
anyone know the issues or have any guidence?

My team is new at HACMP (we got this cluster lumped in our lap) so any
help is appreciated!

Thanks.

[TomK]

On 23 Sep 2003 05:11:48 -0700, [email]jmcconnell@mandtbank.com[/email] (John M) wrote:

>I've got a running cluster in one location that consists of two
>p660-6H1's. My question is... I need to recover the cluster at
>Sunguard. I have a Sysback tape of the O/S and the data is backed up
>another way. How do I restore this Sysback backup to a single
>p660-6H1? What are the issues and/or changes I have to make? Does
>anyone know the issues or have any guidence?

Recover the cluster? Or just the primary system?

Look up the process for 'cloning' with a sysback backup (I can't help
there, we just do mksysb :-).

OTOH, we do restore an HACMP cluster as a single system for D/R. Just
treat it like a single system --

1) restore the AIX image and rootvg
2) edit (smitty) the network interfaces and put them all on the 'run' IP
address instead of the boot addresses
3) recreate your application volume groups
4) restore your application data
5) use whatever startup script is appropriate to your application

You'll probably want to alter your application volume groups and
filesystems to auto-varyon at boot, and you'll need to alter /etc/inittab
to get NFS to come up at boot as well

I found this process was, over-all, a bit simpler than trying to get HACMP
to start in a single-node environment with slightly different hardware.
Easier to document, as well.

>
>My team is new at HACMP (we got this cluster lumped in our lap) so any
>help is appreciated!

And the previous owner never did any D/R doc on it? Not nice!

Tom

>