RE: ASM - hardware mirroring vs. Oracle mirroring
- From: "Baumgartel, Paul" <paul.baumgartel@xxxxxxxxxxxxxxxxx>
- To: oracle-l@xxxxxxxxxxxxx
- Date: Wed, 16 Apr 2008 13:53:54 -0400
Agreed. ASM's main purpose is to provide striping and mirroring, is it
not? If you already are using a storage subsystem that performs those
tasks, what is the added benefit of ASM? Does that benefit exceed the
drawbacks? And, to Jared's point, doesn't it seem inevitable that use
of ASM will shift storage responsibility from storage and/or system
admins to the DBA? I have enough to do without taking that on.
Paul Baumgartel
CREDIT SUISSE
Information Technology
Prime Services Databases Americas
One Madison Avenue
New York, NY 10010
USA
Phone 212.538.1143
paul.baumgartel@xxxxxxxxxxxxxxxxx
www.credit-suisse.com
________________________________
From: Jared Still [mailto:jkstill@xxxxxxxxx]
Sent: Wednesday, April 16, 2008 1:29 PM
To: Allen, Brandon
Cc: Finn Jorgensen; krish.hariharan@xxxxxxxxxxxx; Baumgartel, Paul; Don
Seiler; oracle-l@xxxxxxxxxxxxx
Subject: Re: ASM - hardware mirroring vs. Oracle mirroring
On Wed, Apr 16, 2008 at 9:56 AM, Allen, Brandon
<Brandon.Allen@xxxxxxxxxxx> wrote:
I have no experience with ASM, nor any volume management
software, but my guess would be that ASM doesn't add complexity, rather
it shifts that area of complexity from the Unix admin to the DBA. I
have the luxury of working with an excellent team of Unix admins, so I
prefer to let them handle that area, but for someone who wears both the
Unix/Linux admin and the DBA hats, maybe it makes sense to use ASM. Can
anyone else who has worked extensively with both LVM and ASM confirm or
deny that assertion?
I think we've seen an excellent example of added technical complexity
from Finn Jorgensen.
Also, I completely agree with the fact that ASM shifts responsibility.
Personally, I don't want the storage admin's job.
We have very capable admins, and I don't see any point in taking on the
storage
responsibility in addition to DBA duties.
Which as far as I'm concerned, adds a great deal of complexity, because
then I
as the DBA would also be the storage admin.
________________________________
From: oracle-l-bounce@xxxxxxxxxxxxx
[mailto:oracle-l-bounce@xxxxxxxxxxxxx] On Behalf Of Jared Still
Is it just me, or does ASM unnecessarily complicate operations?
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--
Jared Still
Certifiable Oracle DBA and Part Time Perl Evangelist
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