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From: "Thomas J. Baker" <tjb@unh.edu>
To: landman@scalableinformatics.com
Cc: linux-raid@vger.kernel.org
Subject: Re: Any hope for a 27 disk RAID6+1HS array with four disks reporting "No md superblock detected"?
Date: Wed, 04 Feb 2009 16:03:57 -0500	[thread overview]
Message-ID: <1233781437.696.2.camel@localhost.localdomain> (raw)
In-Reply-To: <4989FF7B.6030503@scalableinformatics.com>

On Wed, 2009-02-04 at 15:50 -0500, Joe Landman wrote:
> Thomas J. Baker wrote:
> > Any help greately appreciated. Here are the details:
> > 
> > [root@node002 ~]# ./examineRAIDDisks 
> > mdadm -E /dev/sdb1 /dev/sdc1 /dev/sdd1 /dev/sde1 /dev/sdf1 /dev/sdg1 /dev/sdh1 /dev/sdi1 /dev/sdj1 /dev/sdk1 /dev/sdl1 /dev/sdm1 /dev/sdn1 /dev/sdo1 /dev/sdp1 /dev/sdq1 /dev/sdr1 /dev/sds1 /dev/sdt1 /dev/sdu1 /dev/sdv1 /dev/sdw1 /dev/sdx1 /dev/sdy1 /dev/sdz1 /dev/sdaa1 /dev/sdab1 /dev/sdac1
> > /dev/sdb1:
> >           Magic : a92b4efc
> >         Version : 00.90.00
> 
> Hi Thomas:
> 
>    Don't you need 1.0 or higher superblocks to make this work?
> 
> Joe

The array was made probably two years ago and had been working fine
until recently. In reading the documentation for mdadm, it did seem like
it should have required me to use the higher version but it never
complained when I made it and worked fine.

Thanks,

tjb
-- 
=======================================================================
| Thomas Baker                                  email: tjb@unh.edu    |
| Systems Programmer                                                  |
| Research Computing Center                     voice: (603) 862-4490 |
| University of New Hampshire                     fax: (603) 862-1761 |
| 332 Morse Hall                                                      |
| Durham, NH 03824 USA              http://wintermute.sr.unh.edu/~tjb |
=======================================================================


  reply	other threads:[~2009-02-04 21:03 UTC|newest]

Thread overview: 19+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2009-02-04 19:27 Any hope for a 27 disk RAID6+1HS array with four disks reporting "No md superblock detected"? Thomas J. Baker
2009-02-04 20:50 ` Joe Landman
2009-02-04 21:03   ` Thomas J. Baker [this message]
2009-02-04 21:17     ` Thomas J. Baker
2009-02-05 18:49     ` Bill Davidsen
2009-02-05 18:59       ` Thomas J. Baker
2009-02-05 23:57         ` Bill Davidsen
2009-02-06  0:08           ` Thomas Baker
2009-02-06  5:14 ` Neil Brown
2009-02-06 20:32   ` Thomas J. Baker
2009-02-06 21:01     ` NeilBrown
2009-02-06 21:47       ` Thomas J. Baker
2009-02-07  2:09         ` NeilBrown
2009-02-09 14:48           ` Thomas J. Baker
2009-02-10 16:58             ` Nagilum
2009-02-07  4:05   ` Mr. James W. Laferriere
2009-02-08 22:02     ` Thomas Baker
2009-02-09 11:47       ` Max Waterman
2009-02-10  8:55         ` Luca Berra

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