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Re: >1 TB RAID servers

To: Joshua Baker-LePain <jlb17@xxxxxxxx>
Subject: Re: >1 TB RAID servers
From: Steve Lord <lord@xxxxxxx>
Date: Thu, 25 Mar 2004 15:26:59 -0600
Cc: Daryl Herzmann <akrherz@xxxxxxxxxxx>, linux-xfs@xxxxxxxxxxx
In-reply-to: <Pine.LNX.4.58.0403251251070.5990@chaos.egr.duke.edu>
References: <Pine.LNX.4.58.0403251052360.24003@pircsds0.agron.iastate.edu> <Pine.LNX.4.58.0403251251070.5990@chaos.egr.duke.edu>
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Joshua Baker-LePain wrote:
> On Thu, 25 Mar 2004 at 11:00am, Daryl Herzmann wrote
> 
> 
>>Hiya,
>>
>>I am intrigued by the message below by Eric.  I have 4 machines running
>>with XFS on kernel 2.4 with software-or-hardware RAID arrays well over 1
>>TB in size.  Have I just been lucky that the filesystems have not been
>>trashed itself yet?  Time to hug my backups even tighter!? :)
> 
> 
> I was going to add to the bug likewise.  I've got two machines with dual 
> 3ware 7508 cards running hardware RAID5 with software RAID0 stripes across 
> the cards.  The md stripe ends up just under 2TB.  They're currently 
> running 2.4.21 + XFS 1.3.
> 
> In fact, I know of several folks with arrays limited only by the 2TB 
> limit.
> 

But maybe you are lucky in using drivers which are clean in
the right places, for example incorrect use of a signed var
can mess this up. Some drivers do not work so well when you go out
beyond 1 Tbyte.

Steve


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