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Re: 64k block size in 64-bit Linux

To: AndyLiebman@xxxxxxx
Subject: Re: 64k block size in 64-bit Linux
From: Nathan Scott <nathans@xxxxxxx>
Date: Fri, 25 Feb 2005 08:52:27 +1100
Cc: linux-xfs@xxxxxxxxxxx
In-reply-to: <7e.64044ca7.2f4f9f77@aol.com>; from AndyLiebman@aol.com on Thu, Feb 24, 2005 at 04:21:59PM -0500
References: <7e.64044ca7.2f4f9f77@aol.com>
Sender: linux-xfs-bounce@xxxxxxxxxxx
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On Thu, Feb 24, 2005 at 04:21:59PM -0500, AndyLiebman@xxxxxxx wrote:
> Question. 
> 
> I just loaded up a 64-bit  distribution of Linux. I compiled the kernel 
> optimized for AMD -- (which is what  I have, dual Opterons). When I go to put 
> XFS 
> on my big RAID array, I am able to  create the filesystem with a 64k block 
> size. But then I can't mount it.  
> 
> I was under the impression that with 64-bit Linux, one could make xfs  
> partitions with large block sizes -- that with 64-bit Linux, there's no 4K  
> limitation. Am I missing something? What do I have to do to be able to mount  
> this 
> RAID? 
> 
> Thanks in advance for some wisdom. 

The limitation is the size of a page.  If you have a kernel that
can support 64K pages (eg. IA64), then you can use 64K blocks.

cheers.

-- 
Nathan


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