Re: ASM versus Filesystems
Date: Sat, 6 Mar 2010 10:10:08 +0000
On Fri, Mar 5, 2010 at 10:44 PM, patrick obrien <po04541_at_yahoo.com> wrote:
> Oracle Admins,
> I've been an AIX Admin for years, I'm a junior Oracle DBA and I apologize
> if the ASM Topic has come up lately. As an AIX Admin, using filesystems
> seems the best option for me.
I'm not a AIX admin but every filesystem is additional layer to manage and
can limit performance.
ASM is running on raw devices - database processes are performing any IO directly on disks without additional OS buffering.
Of course from management point of view there are still some missing points in ASM:
- snapshots on group level - adding / deleting mirroring on fly - etc.
The best way is to setup both DB with and without ASM and just compare from performance, backup and management point of view and choose the best for you.