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From: Andrew Dunn <andrew.g.dunn@gmail.com>
To: linux-raid list <linux-raid@vger.kernel.org>
Subject: RAID 6 Failure follow up
Date: Sun, 08 Nov 2009 09:07:37 -0500	[thread overview]
Message-ID: <4AF6D0A9.6000901@gmail.com> (raw)

This is kind of interesting:

storrgie@ALEXANDRIA:~$ sudo mdadm --assemble --force /dev/md0
mdadm: no devices found for /dev/md0

All of the devices are there in /dev, so I wanted to examine them:

storrgie@ALEXANDRIA:~$ sudo mdadm --examine /dev/sde1
/dev/sde1:
          Magic : a92b4efc
        Version : 00.90.00
           UUID : 397e0b3f:34cbe4cc:613e2239:070da8c8 (local to host
ALEXANDRIA)
  Creation Time : Fri Nov  6 07:06:34 2009
     Raid Level : raid6
  Used Dev Size : 976759808 (931.51 GiB 1000.20 GB)
     Array Size : 6837318656 (6520.58 GiB 7001.41 GB)
   Raid Devices : 9
  Total Devices : 9
Preferred Minor : 0

    Update Time : Sun Nov  8 08:57:04 2009
          State : clean
 Active Devices : 5
Working Devices : 5
 Failed Devices : 4
  Spare Devices : 0
       Checksum : 4ff41c5f - correct
         Events : 43

     Chunk Size : 1024K

      Number   Major   Minor   RaidDevice State
this     0       8       65        0      active sync   /dev/sde1

   0     0       8       65        0      active sync   /dev/sde1
   1     1       8       81        1      active sync   /dev/sdf1
   2     2       8       97        2      active sync   /dev/sdg1
   3     3       8      113        3      active sync   /dev/sdh1
   4     4       0        0        4      faulty removed
   5     5       0        0        5      faulty removed
   6     6       0        0        6      faulty removed
   7     7       0        0        7      faulty removed
   8     8       8      193        8      active sync   /dev/sdm1

First raid device shows the failures....

One of the 'removed' devices:

storrgie@ALEXANDRIA:~$ sudo mdadm --examine /dev/sdi1
/dev/sdi1:
          Magic : a92b4efc
        Version : 00.90.00
           UUID : 397e0b3f:34cbe4cc:613e2239:070da8c8 (local to host
ALEXANDRIA)
  Creation Time : Fri Nov  6 07:06:34 2009
     Raid Level : raid6
  Used Dev Size : 976759808 (931.51 GiB 1000.20 GB)
     Array Size : 6837318656 (6520.58 GiB 7001.41 GB)
   Raid Devices : 9
  Total Devices : 9
Preferred Minor : 0

    Update Time : Sun Nov  8 08:53:30 2009
          State : active
 Active Devices : 9
Working Devices : 9
 Failed Devices : 0
  Spare Devices : 0
       Checksum : 4ff41b2f - correct
         Events : 21

     Chunk Size : 1024K

      Number   Major   Minor   RaidDevice State
this     4       8      129        4      active sync   /dev/sdi1

   0     0       8       65        0      active sync   /dev/sde1
   1     1       8       81        1      active sync   /dev/sdf1
   2     2       8       97        2      active sync   /dev/sdg1
   3     3       8      113        3      active sync   /dev/sdh1
   4     4       8      129        4      active sync   /dev/sdi1
   5     5       8      145        5      active sync   /dev/sdj1
   6     6       8      161        6      active sync   /dev/sdk1
   7     7       8      177        7      active sync   /dev/sdl1
   8     8       8      193        8      active sync   /dev/sdm1

-- 
Andrew Dunn
http://agdunn.net


             reply	other threads:[~2009-11-08 14:07 UTC|newest]

Thread overview: 23+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2009-11-08 14:07 Andrew Dunn [this message]
2009-11-08 14:23 ` RAID 6 Failure follow up Roger Heflin
2009-11-08 14:30   ` Andrew Dunn
2009-11-08 18:01     ` Richard Scobie
2009-11-08 18:22       ` Andrew Dunn
2009-11-08 18:34         ` Joe Landman
2009-11-08 22:09       ` Andrew Dunn
2009-11-08 22:59         ` Richard Scobie
2009-11-09  2:45           ` Ryan Wagoner
2009-11-09  2:57             ` Richard Scobie
2009-11-09  8:09             ` Gabor Gombas
2009-11-09 10:08               ` Andrew Dunn
2009-11-09 11:34                 ` Gabor Gombas
2009-11-09 22:04                   ` Andrew Dunn
2009-11-10 10:55                   ` Andrew Dunn
2009-11-10 11:34                     ` Vincent Schut
2009-11-11 12:34                       ` Andrew Dunn
2009-11-11 12:46                         ` Vincent Schut
2009-11-17  8:40                       ` Vincent Schut
2009-11-10 12:45                     ` Ryan Wagoner
2009-11-08 14:36   ` Andrew Dunn
2009-11-08 14:56     ` Roger Heflin
2009-11-08 17:08       ` Andrew Dunn

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