RE: Large ASM installation
- From: "Bobak, Mark" <Mark.Bobak@xxxxxxxxxxxx>
- To: "daniel.fink@xxxxxxxxxxxxxx" <daniel.fink@xxxxxxxxxxxxxx>, oracle-l <oracle-l@xxxxxxxxxxxxx>
- Date: Fri, 22 Oct 2010 11:51:55 -0400
Hi Dan,
We've been an ASM shop since we moved to 10.2 several years ago, and are quite
comfortable with it.
We started (relatively) small, with a few 100-200GB databases. Recently, our
content store re-architecture means that we've got an 11.2 database that's
about 10TB (and growing) on ASM. Overall, I'm pleased with the combination of
ASM, bigfile tablespaces, and OMF. It means that tablespace level monitoring
is a thing of the past. We have everything in ASM, OCR, data, redo, flashback
(which is where we write archivelogs). I just monitor space usage in the disk
groups, and, when I start running low, the storage admin provides another chunk
of raw disk, which I add to the diskgroup, and I'm good to go. Each tablespace
grows at its own rate, allocating space from the diskgroup. Depending on the
tablespace, you may want to set limits on specific tablespaces, but, for our
big tablespace, it's just set to unlimited, and I add space to the diskgroup as
needed.
Overall, I think ASM is a good thing.
-Mark
-----Original Message-----
From: oracle-l-bounce@xxxxxxxxxxxxx [mailto:oracle-l-bounce@xxxxxxxxxxxxx] On
Behalf Of Daniel W. Fink
Sent: Friday, October 22, 2010 10:10 AM
To: oracle-l
Subject: Large ASM installation
We have a customer that is looking at ASM to handle their databases, the
total planned is about 8TB for a single ASM instance. Has anyone on the
list worked on a large (5+TB) ASM system? What have been the pros and
cons versus a regular LVM and storage? If you had the chance to go back
to the decision time, would you make the same decision and why?
I'm not needing nitty gritty details right now, more of a high level
decision making view.
Regards,
Daniel Fink
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