RE: AIX 5.2 move from JFS to JFS2
- From: "Allen, Brandon" <Brandon.Allen@xxxxxxxxxxx>
- To: <Mark.Bobak@xxxxxxxxxxxxxxx>, <Patty.Charlebois@xxxxxxxxxxxxxx>, <Oracle-L@xxxxxxxxxxxxx>
- Date: Wed, 27 Jun 2007 12:09:45 -0700
Yes, Mark is correct - I've run a couple systems on JFS2 with CIO and
you definitely need to compensate for the lack of filesystem buffering
by increasing your db_cache_size - that is assuming it wasn't oversized
to begin with, which you'll want to verify from statspack,
v$system_event, v$db_cache_advice, AWR, etc. prior to throwing more RAM
at it if you don't need to.
-----Original Message-----
From: oracle-l-bounce@xxxxxxxxxxxxx
[mailto:oracle-l-bounce@xxxxxxxxxxxxx] On Behalf Of Bobak, Mark
I don't have any firsthand experience w/ JFS2, however, yes, in general,
it's certainly possible to see physical I/O increase
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