Re: Direct IO In RH 3.0

From: Daniel Morgan <damorgan_at_x.washington.edu>
Date: Wed, 03 Mar 2004 14:59:36 -0800
Message-ID: <1078354741.931429@yasure>

Rick Denoire wrote:

> Mladen Gogala <mgogala_at_adelphia.net> wrote:
>
>

>>file systems (XFS reports an error). Ext2 does support direct I/O,
>>but ext3 has had significant problems with it. The latest versions 
>>of ReiserFS no longer report an error woth it, while JFS works.
>>Veritas charges significant amount of money for "Quick I/O" option,
>>which is, essentially, ability to do direct I/O. JFS for linux
>>is described at: http://www-124.ibm.com/jfs

>
>
> Could you provide some references to the support of direct I/O in ext2
> and ext3? If ext2 really supports direct I/O flawlessly, then it is
> worth trying - what would be the trade offs here? (Since ext3 is
> supposed to be more advanced - but the journaling option is not needed
> for DB operations, the number + name + properties of the DB files does
> not change often).
>
> Bye
> Rick Denoire
>

RH 3.0 is a very very different animal than is 2.1. My understanding is that part of the incentive behind releasing a 9.2.0.5 CD pack is fixes for RH 3.0.

I sure hope the rumours are correct.

-- 
Daniel Morgan
http://www.outreach.washington.edu/ext/certificates/oad/oad_crs.asp
http://www.outreach.washington.edu/ext/certificates/aoa/aoa_crs.asp
damorgan_at_x.washington.edu
(replace 'x' with a 'u' to reply)

Received on Wed Mar 03 2004 - 16:59:36 CST