[MVLUG] Software Raid

Jonathan Lindsey jlindsey at 3drc.com
Mon Sep 27 00:18:47 MDT 2010

"On the Linux XFS implementations, compatibility issues between different architectures exists due to journaling-optimization. This can be solved by running xfs_repair (to clean the journal) before mounting the file system on a different architecture." http://ubuntuforums.org/archive/index.php/t-285858.html

This is what I found... but I'm having a hard time finding anything more.

-Jonathan Lindsey 
Network Engineer 
3D Research Corporation

-----Original Message-----
From: mvlug-list-bounces at mvlug.org on behalf of Samat K Jain
Sent: Sun 9/26/2010 11:38 PM
To: mvlug-list at mvlug.org
Subject: Re: [MVLUG] Software Raid
On Sunday, September 26, 2010 10:58:34 pm Jonathan Lindsey wrote:
> I want to move my current software raid 5 array from centos....a very very
> out dated os, to ubuntu server.  In planning this move I have checked
> ubuntu server to see if it supports xfs and software raids.  I found some
> interesting information that said moving linux software raids from 32 bit
> to a 64 bit requires a reformat of the partition.... does anyone have any
> experience with this?

I am not sure about Linux software RAID, but I don't see why it would matter? 
I do not think Linux software RAID is architecture specific. Do you have any 
more information?

I *have* loaded up a 32-bit LiveCD on a 64-bit system (i.e. the installed 
system, RAID arrays, and filesystems were created on 64-bit) and 
started/managed RAID arrays without any issue, if that's any similar of a 

On filesystems, I use XFS filesystems on 32-bit and 64-bit systems 
interchangably all the time (my 16 GB usb key drive is XFS).

Samat K Jain <http://samat.org/> | GPG: 0x4A456FBA

God defend me from myself.
-- Montaigne (165)

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