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Home -> Community -> Usenet -> c.d.o.misc -> Re: Asynchronous I/O and AIX and jfs = perf ?
Emmanuel Cortes wrote:
> To increase performance of oracle database 7.3.x.x, is it better to use
> Asynchronous I/O on AIX 4.3.x whith jfs file systems or not ?
Raw LV's.
> I read in a redbook (Database Performance on AIX in DB2 UDB ans Oracle
> Environnements "SG24-551-00") it's a good thing.
>
> But oracle tell if you don't use raw device is not good idea.
JFS will add *two* redirections to each DB access.
> Where is the truth ?
Go the LVM way (unless it's a toy database).
--
Doing AIX support was the most monty-pythonesque
activity available at the time.
Received on Thu Dec 09 1999 - 19:08:57 CST
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