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Re: [Xen-users] lustre clustre file system and xen 3

To: xen mailinglist <xen-users@xxxxxxxxxxxxxxxxxxx>
Subject: Re: [Xen-users] lustre clustre file system and xen 3
From: Karsten Nielsen <karsten-xen@xxxxxxxxxx>
Date: Thu, 18 May 2006 20:25:15 +0200
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Mayby I frased my question wrong. I have read a lot on the mailing list about pros and cons of different ways to make the file backend avalible to multiple physical servers.

But it seems that there are no real good answer to that question as fare as I have read. There are pros and cons to every solution.

What I was looking for is a file backend that performs very well and is relayable.

If I want to use ocfs2 I cannot resize the file system. (http://www.mail-archive.com/ocfs2-users@xxxxxxxxxxxxxx/msg00059.html) If I want to use GFS it's performence is not that great (http://guialivre.governoeletronico.gov.br/mediawiki/index.php/TesteGFSGraficoRaid10_ext3vsgfs and http://guialivre.governoeletronico.gov.br/mediawiki/index.php/TestesGFS )

Mayby I am making this to complicated and should not worry about the lock system of clustre file systems what I am looking for is realy performance and relyability.

Any hints ?
And why do you think that Lustre is at bad idea ?

Christopher G. Stach II wrote:
Karsten Nielsen wrote:
How will you make the LVM2 or raw partitions avalible to the application
servers ? - i have 2 physical application servers and 1 file backend
server. That means that i have 3 servers.


How would you make a file backend available to multiple physical
servers?  That's a rhetorical question, but to answer yours, probably NBD.


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