DegradedArray event on /dev/md1:in22

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Autor: Frédéric
Data:  
A: ML Guilde
Assumpte: DegradedArray event on /dev/md1:in22
Je viens de recevoir ce message de mdadmin :

---------- Message transmis ----------

Date: Mardi 27 Juin 2006 14:56
From: mdadm monitoring <root@???>

This is an automatically generated mail message from mdadm
running on in22

A DegradedArray event had been detected on md device /dev/md1.

Faithfully yours, etc.

-------------------------------------------------------

Ma config raid est faite de 2 disques de 4 partitions, toutes mirrorées en
raid 1 (md0=swap, md1=/, md2=/home, md3=/data)

En regardant dans dmesg, j'ai ceci :

devfs_mk_dev: could not append to parent for md/1
md: md1 stopped.
md: bind<hdb2>
md: bind<hda2>
md: kicking non-fresh hdb2 from array!
md: unbind<hdb2>
md: export_rdev(hdb2)
raid1: raid set md1 active with 1 out of 2 mirrors
VFS: Can't find ext3 filesystem on dev md1.
ReiserFS: md1: found reiserfs format "3.6" with standard journal
ReiserFS: md1: using ordered data mode
ReiserFS: md1: journal params: device md1, size 8192, journal first block
18, max trans len 1024, max batch 900, max commit age
30, max trans age 30
ReiserFS: md1: checking transaction log (md1)
ReiserFS: md1: Using r5 hash to sort names
[...]
md: md0 stopped.
md: bind<hdb1>
md: bind<hda1>
raid1: raid set md0 active with 2 out of 2 mirrors
devfs_mk_dev: could not append to parent for md/2
md: md2 stopped.
md: bind<hdb3>
md: bind<hda3>
raid1: raid set md2 active with 2 out of 2 mirrors
devfs_mk_dev: could not append to parent for md/3
md: md3 stopped.
md: bind<hdb4>
md: bind<hda4>
raid1: raid set md3 active with 2 out of 2 mirrors

Il semble que seule la partition md1 (/) ne soit plus mirrorée. À quoi
est-ce dû ? Ce n'est pas dit...

J'ai aussi lancé mdadm, mais ça ne m'éclaire pas plus :

# mdadm --examine /dev/hda2
/dev/hda2:
          Magic : a92b4efc
        Version : 00.90.01
           UUID : c1f26c1b:c03a77e3:0ab61139:07d7540f
  Creation Time : Fri Nov  4 11:05:41 2005
     Raid Level : raid1
    Device Size : 7004224 (6.68 GiB 7.17 GB)
     Array Size : 7004224 (6.68 GiB 7.17 GB)
   Raid Devices : 2
  Total Devices : 1
Preferred Minor : 1


    Update Time : Tue Jun 27 15:13:52 2006
          State : clean
 Active Devices : 1
Working Devices : 1
 Failed Devices : 1
  Spare Devices : 0
       Checksum : c69083d2 - correct
         Events : 0.1692834



      Number   Major   Minor   RaidDevice State
this     0       3        2        0      active sync   /dev/hda2


   0     0       3        2        0      active sync   /dev/hda2
   1     1       0        0        1      faulty removed



# mdadm --examine /dev/hdb2
/dev/hdb2:
          Magic : a92b4efc
        Version : 00.90.01
           UUID : c1f26c1b:c03a77e3:0ab61139:07d7540f
  Creation Time : Fri Nov  4 11:05:41 2005
     Raid Level : raid1
    Device Size : 7004224 (6.68 GiB 7.17 GB)
     Array Size : 7004224 (6.68 GiB 7.17 GB)
   Raid Devices : 2
  Total Devices : 2
Preferred Minor : 1


    Update Time : Tue Jun 27 08:46:03 2006
          State : clean
 Active Devices : 2
Working Devices : 2
 Failed Devices : 0
  Spare Devices : 0
       Checksum : c69024a3 - correct
         Events : 0.1692218



      Number   Major   Minor   RaidDevice State
this     1       3       66        1      active sync   /dev/hdb2


   0     0       3        2        0      active sync   /dev/hda2
   1     1       3       66        1      active sync   /dev/hdb2



# mdadm --detail /dev/md1
/dev/md1:
        Version : 00.90.01
  Creation Time : Fri Nov  4 11:05:41 2005
     Raid Level : raid1
     Array Size : 7004224 (6.68 GiB 7.17 GB)
    Device Size : 7004224 (6.68 GiB 7.17 GB)
   Raid Devices : 2
  Total Devices : 1
Preferred Minor : 1
    Persistence : Superblock is persistent


    Update Time : Tue Jun 27 15:18:00 2006
          State : clean, degraded
 Active Devices : 1
Working Devices : 1
 Failed Devices : 0
  Spare Devices : 0


           UUID : c1f26c1b:c03a77e3:0ab61139:07d7540f
         Events : 0.1692924


    Number   Major   Minor   RaidDevice State
       0       3        2        0      active sync   /dev/hda2
       1       0        0        1      removed



# cat /proc/mdstat
Personalities : [raid1]
md3 : active raid1 hda4[0] hdb4[1]
      30186048 blocks [2/2] [UU]


md2 : active raid1 hda3[0] hdb3[1]
      2008000 blocks [2/2] [UU]


md0 : active raid1 hda1[0] hdb1[1]
      1003904 blocks [2/2] [UU]


md1 : active raid1 hda2[0]
      7004224 blocks [2/1] [U_]


unused devices: <none>

Une idée ?

--
Frédéric

http://www.gbiloba.org