Re: Oralce 10g2/RAC on AIX. ASM or GPFS?

tangdba_at_gmail.com wrote:
> You already have EMC SAN with external redundancy. So I guess you
> don't use ASM for redundancy. Using GPFS would be a better choice
> since you have more control on your system. However, licenses of most
> commercial cluster file systems are expensive. If cost is an issue,
> you may want to consider the free OCFS on Linux. I'm using it for 10g
> RAC on RHEL AS and HDS (Hitachi data system) and it works fine.

We also use OCFS but we are facing a problem - it SEEMS that Oracle is not very actively developing and supporting OCFS. While OCFS version 1 is certified with RAC, OCFS version 2 is not and it does not look like it is going to be soon.

I capitalized seems above because it is hard to get commitments out of Oracle concerning their future strategy.

OCFS version 1 unfortunately does not run on all platforms, I don't know about AIX.

It seems that Oracle themselves are pushing ASM as hard as they can - no wonder because it gives them control over yet another layer of the customer system.

When you take ASM, make sure that you store your ASM configuration in some external safe place. If your system blows up, you must be able to reconfigure your ASM before you can restore your database.

Yours,
Laurenz Albe Received on Thu Mar 30 2006 - 04:20:12 CST