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Home -> Community -> Mailing Lists -> Oracle-L -> Re: Anyone running JFS2 Concurrent I/O with 9i on AIX 5.2?
CIO is a feature of AIX 5.2 JFS2.
There is a whitepaper talking about this feature on IBM site. you can search
for it.
According to that paper, performance is near that of raw device.
I have saw some patch for CIO from IBM. As it is a new feature you'd better
test it carefully before put it into production.
Regards
Zhu Chao.
> What is JFS2? What is Concurrent I/O? Do you have a URL? I'm using JFS on
Linux
> and I'm a fan, but I've never heard of JFS2 and concurrent I/O? What is
the difference
> between JFS and JFS2, besides additional number at the end of the name?
>
>
> On 04/27/2004 11:37:44 AM, Thomas Jeff wrote:
> > Supposedly, the performance is much better due to alleviating the
> > inode write serialization issue.
> > Does Oracle enforce serialization if Concurrent I/O is turned on?
> >
> > --------------------------------------------
> > Jeffery D Thomas
> > DBA
> > Thomson Information Services
> > Thomson, Inc.
> >
> > Email: jeff.thomas_at_thomson.net
> >
> > Indy DBA Master Documentation available at:
> > http://gkmqp.tce.com/tis_dba
> > --------------------------------------------
> >
> >
> >
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> --
> Mladen Gogala
> Oracle DBA
>
>
>
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-- Archives are at http://www.freelists.org/archives/oracle-l/ FAQ is at http://www.freelists.org/help/fom-serve/cache/1.html -----------------------------------------------------------------Received on Tue Apr 27 2004 - 19:03:10 CDT
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