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Re: diskutil convertRAID hosed my array...

At 9:14 AM -0400 6/26/07, Christopher Waltham wrote: 
On Jun 25, 2007, at 10:31 PM, Dan Shoop wrote:

At 9:44 PM +0100 6/25/07, Howard Oakley wrote: 
On 25/6/07 16:59, Christopher Waltham wrote:

 I have a G5 Xserve running 10.4.8 Server, with a pair of 80GB drives
 in a RAID1 array. One of the disks became degraded this morning, but
 diskutil didn't fix it automatically. This seems to be because the
 array was created in 10.3.9 Server (i.e. Panther), and thus was made
 with AppleRAID version 1.

 So, I booted off a 10.4 install DVD and ran "diskutil convertRAID" to
 convert the array to AppleRAID 2 so that I could repair it. The logs
 from diskutil say that everything went flawlessly and it only took a
 couple of minutes to complete. However, upon rebooting the Xserve
 after that, the RAID array exists but the volume it contains has
 seemingly disappeared.

[snip]

 Short of buying a copy of DiskWarrior, does anyone have a fix for
 this? Or has anyone even seen this happen before?


Chris,

I am afraid that this has been reported before, and seems to be the rule
with Panther RAID-1 arrays that are not converted to Tiger format before
trying to repair them under Tiger.

I don't know if this has made Apple's KnowledgeBase yet, but I reported it
in Bug Buster in The Works in MacUser in vol 22 (2006) issue no 24,
following email from Simon Banton.

I wouldn't consider this a "bug" per se but something that shouldn't be expected to work and might need a larger warning.

Then if you can't repair AppleRAID v1 volumes in Tiger, the Tiger upgrade process should tell you so. Not telling you so, and then having an unrecoverable array when you try and repair the array in Tiger when it breaks, isn't a bug -- it's a ridiculous oversight if it's true.

You should be reading release notes *before* upgrading OSen. It shouldn't be expected to jump out with a sign.
--

-dhan

------------------------------------------------------------------------
Dan Shoop                                                   AIM: iWiring
Systems & Networks Architect                      http://www.ustsvs.com/
email@hidden                                http://www.iwiring.net/
1-714-363-1174
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References: 
 >Re: diskutil convertRAID hosed my array... (From: Howard Oakley <email@hidden>)
 >Re: diskutil convertRAID hosed my array... (From: Dan Shoop <email@hidden>)
 >Re: diskutil convertRAID hosed my array... (From: Christopher Waltham <email@hidden>)



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