Re: Raid 5 Recovery

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oops, forgot to send it here...


---------- Forwarded message ----------
From: Erik Boettcher <tehfoo@xxxxxxxxx>
Date: Sun, Dec 28, 2008 at 4:59 PM
Subject: Re: Raid 5 Recovery
To: NeilBrown <neilb@xxxxxxx>


>
> Yes, specifics are good.  I'm afraid I need a few more though.
>  mdadm -Esvvv

livecd ~ # mdadm -Esvvv
/dev/sde3:
         Magic : a92b4efc
       Version : 00.90.00
          UUID : b2cca5f0:59a04cfc:a3bbe707:108124a2
 Creation Time : Thu Jan 18 02:29:09 2007
    Raid Level : raid5
 Used Dev Size : 195093248 (186.06 GiB 199.78 GB)
    Array Size : 780372992 (744.22 GiB 799.10 GB)
  Raid Devices : 5
 Total Devices : 5
Preferred Minor : 0

   Update Time : Tue Dec  9 02:11:56 2008
         State : clean
 Active Devices : 5
Working Devices : 5
 Failed Devices : 0
 Spare Devices : 0
      Checksum : 46384ff - correct
        Events : 0.4508

        Layout : left-asymmetric
    Chunk Size : 32K

     Number   Major   Minor   RaidDevice State
this     2       8       67        2      active sync   /dev/sde3

  0     0       8       35        0      active sync   /dev/sdc3
  1     1       8       51        1      active sync   /dev/sdd3
  2     2       8       67        2      active sync   /dev/sde3
  3     3       8       19        3      active sync   /dev/sdb3
  4     4       8        3        4      active sync   /dev/sda3
mdadm: No md superblock detected on /dev/sde2.
mdadm: No md superblock detected on /dev/sde1.
mdadm: No md superblock detected on /dev/sde.
/dev/sdd3:
         Magic : a92b4efc
       Version : 00.90.00
          UUID : b2cca5f0:59a04cfc:a3bbe707:108124a2
 Creation Time : Thu Jan 18 02:29:09 2007
    Raid Level : raid5
 Used Dev Size : 195093248 (186.06 GiB 199.78 GB)
    Array Size : 780372992 (744.22 GiB 799.10 GB)
  Raid Devices : 5
 Total Devices : 5
Preferred Minor : 0

   Update Time : Tue Dec  9 02:11:56 2008
         State : clean
 Active Devices : 5
Working Devices : 5
 Failed Devices : 0
 Spare Devices : 0
      Checksum : 46384ed - correct
        Events : 0.4508

        Layout : left-asymmetric
    Chunk Size : 32K

     Number   Major   Minor   RaidDevice State
this     1       8       51        1      active sync   /dev/sdd3

  0     0       8       35        0      active sync   /dev/sdc3
  1     1       8       51        1      active sync   /dev/sdd3
  2     2       8       67        2      active sync   /dev/sde3
  3     3       8       19        3      active sync   /dev/sdb3
  4     4       8        3        4      active sync   /dev/sda3
mdadm: No md superblock detected on /dev/sdd2.
mdadm: No md superblock detected on /dev/sdd1.
mdadm: No md superblock detected on /dev/sdd.
/dev/sdc3:
         Magic : a92b4efc
       Version : 00.88.00
          UUID : b2cca5f0
 Creation Time : Thu Jan 18 02:29:09 2007
    Raid Level : raid5
 Used Dev Size : 195093248 (186.06 GiB 199.78 GB)
    Array Size : 780372992 (744.22 GiB 799.10 GB)
  Raid Devices : 5
 Total Devices : 5
Preferred Minor : 0

   Update Time : Tue Dec  9 02:11:56 2008
         State : clean
 Active Devices : 5
Working Devices : 5
 Failed Devices : 0
 Spare Devices : 0
      Checksum : 46384b9 - correct
        Events : 0.4508

        Layout : left-asymmetric
    Chunk Size : 32K

     Number   Major   Minor   RaidDevice State
this     0       8       33        0      sync   /dev/sdc1

  0     0       8       33        0      active sync   /dev/sdc1
  1     1       8       49        1      active sync   /dev/sdd1
  2     0       8       65        0      sync   /dev/sde1
  3     1       8       17        1      sync   /dev/sdb1
  4     4       8        1        4      active sync   /dev/sda1
mdadm: No md superblock detected on /dev/sdc2.
mdadm: No md superblock detected on /dev/sdc1.
mdadm: No md superblock detected on /dev/sdc.
/dev/sdb3:
         Magic : a92b4efc
       Version : 00.88.00
          UUID : b2cca5f0
 Creation Time : Thu Jan 18 02:29:09 2007
    Raid Level : raid5
 Used Dev Size : 195093248 (186.06 GiB 199.78 GB)
    Array Size : 780372992 (744.22 GiB 799.10 GB)
  Raid Devices : 5
 Total Devices : 5
Preferred Minor : 0

   Update Time : Tue Dec  9 02:11:56 2008
         State : clean
 Active Devices : 5
Working Devices : 5
 Failed Devices : 0
 Spare Devices : 0
      Checksum : 46384d1 - expected 46384a5
        Events : 0.4508

        Layout : left-asymmetric
    Chunk Size : 32K

     Number   Major   Minor   RaidDevice State
this     1       8       17        1      sync   /dev/sdb1

  0     0       8       33        0      sync   /dev/sdc1
  1     1       8       49        1      sync   /dev/sdd1
  2     0       8       65        0      sync   /dev/sde1
  3     1       8       17        1      sync   /dev/sdb1
  4     4       8        1        4      sync   /dev/sda1
mdadm: No md superblock detected on /dev/sdb2.
mdadm: No md superblock detected on /dev/sdb1.
mdadm: No md superblock detected on /dev/sdb.
/dev/sda3:
         Magic : a92b4efc
       Version : 00.88.00
          UUID : b2cca5f0
 Creation Time : Thu Jan 18 02:29:09 2007
    Raid Level : raid5
 Used Dev Size : 195093248 (186.06 GiB 199.78 GB)
    Array Size : 780372992 (744.22 GiB 799.10 GB)
  Raid Devices : 5
 Total Devices : 5
Preferred Minor : 0

   Update Time : Tue Dec  9 02:11:56 2008
         State : clean
 Active Devices : 5
Working Devices : 5
 Failed Devices : 0
 Spare Devices : 0
      Checksum : 46384c1 - expected 463849b
        Events : 0.4508

        Layout : left-asymmetric
    Chunk Size : 32K

     Number   Major   Minor   RaidDevice State
this     4       8        1        4      sync   /dev/sda1

  0     0       8       33        0      sync   /dev/sdc1
  1     1       8       49        1      sync   /dev/sdd1
  2     0       8       65        0      sync   /dev/sde1
  3     1       8       17        1      sync   /dev/sdb1
  4     4       8        1        4      sync   /dev/sda1
mdadm: No md superblock detected on /dev/sda2.
mdadm: No md superblock detected on /dev/sda1.
mdadm: No md superblock detected on /dev/sda.
mdadm: No md superblock detected on /dev/loop0.

> and
>  dmesg | tail -20
dmesg only reports what's shown in the first message and this after
each assemble attempt:
md: md0 stopped.
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