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Re: On RAID, inode size, stripe size (was: Playing around with NFS+XFS)

To: Steve Lord <lord@xxxxxxx>
Subject: Re: On RAID, inode size, stripe size (was: Playing around with NFS+XFS)
From: Andi Kleen <ak@xxxxxxx>
Date: Thu, 6 Sep 2001 20:43:21 +0200
Cc: Federico Sevilla III <jijo@xxxxxxxxxxxxxxxxxxxx>, Dan Yocum <yocum@xxxxxxxx>, Linux XFS Mailing List <linux-xfs@xxxxxxxxxxx>, "Philippine Linux Users' Group Mailing List" <plug@xxxxxxxxxxxxxxxxx>
In-reply-to: <200109051536.f85FaOO05864@xxxxxxxxxxxxxxxxxxxx>; from lord@xxxxxxx on Wed, Sep 05, 2001 at 10:36:24AM -0500
References: <jijo@xxxxxxxxxxxxxxxxxxxx> <200109051536.f85FaOO05864@xxxxxxxxxxxxxxxxxxxx>
Sender: owner-linux-xfs@xxxxxxxxxxx
User-agent: Mutt/1.2.5i
On Wed, Sep 05, 2001 at 10:36:24AM -0500, Steve Lord wrote:
> This is not a raid5 thing, it is a filesystem size issue, once you get
> above 1 Tbyte in filesystem size then xfs inode numbers (which are really
> a disk address) can take more than 32 bits. Since lots of linux code,
> including NFS, does not cope with this, we need to change things in xfs

Since 2.4.5 or so mainstream 2.4 has the fh_to_dentry/dentry_to_fh super
block interfaces. They are currently only used by reiserfs to handle
their equivalent of 64bit inodes; but XFS could use them too to at least
avoid problems with NFS for the big file systems.

-Andi


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