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re[2]: Redhat Advanced Server and XFS?

To: Christoph Hellwig <hch@xxxxxxxxxxxxx>, Simon Matter <simon.matter@xxxxxxxxxxxxxxxx>
Subject: re[2]: Redhat Advanced Server and XFS?
From: Greg Freemyer <freemyer@xxxxxxxxxxxxxxxxx>
Date: Thu, 22 Aug 2002 12:55:13 -0400
Cc: Bill Anderson <bill@xxxxxxxxxxx>, Linux XFS (SGI) <linux-xfs@xxxxxxxxxxx>
Organization: The NorcrossGroup
Sender: owner-linux-xfs@xxxxxxxxxxx
 >>  On Thu, Aug 22, 2002 at 08:40:23AM +0200, Simon Matter wrote:
 >>  > Seems RedHat just doesn't want us to use XFS. That's why it is so
 >>  > important that XFS goes into the official kernel. Then they can't refuse
 >>  > it anymore :)
 >>  > 
 >>  > AFAIK RH AS uses a quite old but heavy patched kernel. It may be
 >>  > difficult to backport current XFS patches. You may have some luck trying
 >>  > the patches from the 2.4.9-34 source RPM as a starting point.

 >>  Although the AS server calls itself 2.4.9 it is quite different from
 >>  RedHat's 2.4.9-34 (which already has more in common with the last
 >>  2.4.13-ac
 >>  then any released 2.4.9 kernel..).  This does include filesystem-related
 >>  changes such as AIO to which XFS is not adoptable without major effort.

 >>  The simplest solution would to just take the 2.4.9-34 rpm which should
 >>  install fine in AS and use that with XFS.  Alternatively I'm happy to
 >>  contract with you in October to fit XFS into the AS kernel 8)

Per the interview at 
http://ocfs.otncast.otnxchange.oracle.com/source/browse/ocfs/
 Oracle has added a lot of Enterprise quality tweaks to the AS kernel.  (I 
think many of these are now in 2.4.19, but I'm not sure.)

If you are considering a Production Quality Oracle environment, you probably 
need to stick to the AS kernel.  

[Off Topic below]  
Christoph: Do you know anything about the newly GPLed Oracle Cluster File 
System (OCFS)?  I'm hoping it might fill the role that OpenGFS is currently 
filling. (Alan Cox has not had good things to say about OpenGFS, so I assume it 
is not a long term player.)

Press Release - http://www.supercomputingonline.com/article.php?sid=2459

CVS web for OCFS - 
http://ocfs.otncast.otnxchange.oracle.com/source/browse/ocfs/ (but you have to 
join Oracle Tech Net at no charge.)


Greg Freemyer
Internet Engineer
Deployment and Integration Specialist
Compaq ASE - Tru64 v4, v5
Compaq Master ASE - SAN Architect
The Norcross Group
www.NorcrossGroup.com


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