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[xfs-masters] Re: Recovery from Accidental Hot Swap

To: xfs-masters@xxxxxxxxxxx
Subject: [xfs-masters] Re: Recovery from Accidental Hot Swap
From: Russell Cattelan <cattelan@xxxxxxxxxxx>
Date: Tue, 20 Dec 2005 12:29:05 -0600
In-reply-to: <7.0.0.16.0.20051216155309.01d1a9e8@link-comm.com>
References: <7.0.0.16.0.20051216155309.01d1a9e8@link-comm.com>
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Sender: xfs-masters-bounce@xxxxxxxxxxx
On Mon, 2005-12-19 at 15:26 -0700, Steve Strobel wrote:
> We have a LinkSys EFG250 NAS that uses XFS on hard drives that are 
> mounted in removable carriages.  Thinking that the drives were 
> hot-swappable (they apparently are not), someone unplugged the drive 
> in bay 1 and plugged it back into the same spot, then removed an 
> almost empty drive from bay 2 and replaced it with an almost full 
> drive that had been installed there previously.  We removed both 
> drives and installed them (one at a time) in a PC running Fedora Core 
> 4, mounting them with the command:
> 
>          mount -o norecovery,ro /dev/hdb1 /linksys
> 
> The drive from bay 1 (that was just unplugged and re-installed in the 
> same bay) shows no user data;  just the directories that the LinkSys 
> NAS uses.  Correspondingly, "du" shows very little disk space 
> used.  "df", on the other hand, shows that the disk is almost full, 
> suggesting that the original data may still be on the drive.
> 
> Similarly, the nearly full drive that was installed into bay 2 after 
> the nearly empty one shows only a few empty directories in the user 
> data area (the same ones that were on the nearly empty drive), "du" 
> shows very little space used, and "df" shows that the disk is almost full.
> 
> Is there any chance of recovering the data on those drives?  Is 
> mounting them read/write and running xfs_repair the best route to 
> take?  Thanks for any suggestions.
Yup that would probably be your best course of action at this point.

> 
> Steve
> 
> 
> 
> ---
> Steve Strobel
> Link Communications, Inc.
> 1035 Cerise Rd
> Billings, MT 59101-7378
> (406) 245-5002 ext 102
> (406) 245-4889 (fax)
> WWW: http://www.link-comm.com
> MailTo:steve.strobel@xxxxxxxxxxxxx
> 
> 
> 


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