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androtech

system partition (md0) is crashed

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DSM says that my system partition is crashed and I should backup and reinstall everything :shock:

 

The only disk of the volume md0 that seems to work is /dev/sdj1; I've 2 spares disks but sysnc does not start probably because the status of the disk /dev/sdj1 is [E] (error)

How can solve this issue without reinstall everything?

 

ash-4.3# mdadm -D /dev/md0
/dev/md0:
       Version : 0.90
 Creation Time : Wed Jun 15 13:58:01 2016
    Raid Level : raid1
    Array Size : 2490176 (2.37 GiB 2.55 GB)
 Used Dev Size : 2490176 (2.37 GiB 2.55 GB)
  Raid Devices : 12
 Total Devices : 3
Preferred Minor : 0
   Persistence : Superblock is persistent

   Update Time : Fri Jan 20 09:40:08 2017
         State : clean, degraded
Active Devices : 1
Working Devices : 3
Failed Devices : 0
 Spare Devices : 2

          UUID : bd8c8583:63c691fc:3017a5a8:c86610be
        Events : 0.1926824

   Number   Major   Minor   RaidDevice State
      0       0        0        0      removed
      1       0        0        1      removed
      2       0        0        2      removed
      3       0        0        3      removed
      4       0        0        4      removed
      5       0        0        5      removed
      6       0        0        6      removed
      7       0        0        7      removed
      8       8      145        8      active sync   /dev/sdj1
      9       0        0        9      removed
     10       0        0       10      removed
     11       0        0       11      removed

     12       8      129        -      spare   /dev/sdi1
     13       8      161        -      spare   /dev/sdk1

 

ash-4.3# cat /proc/mdstat
Personalities : [linear] [raid0] [raid1] [raid10] [raid6] [raid5] [raid4]
md2 : active linear sdb3[0] sdf3[4] sde3[3] sdd3[2] sdc3[1]
     500177920 blocks super 1.2 64k rounding [5/5] [uUUUU]

md1 : active raid1 sda2[0] sdb2[1] sdc2[4] sdd2[3] sde2[2] sdf2[5] sdg2[6] sdh2[10] sdi2[9] sdj2[8] sdk2[7]
     2097088 blocks [12/11] [uUUUUUUUUUU_]

md0 : active raid1 sdi1[12](S) sdj1[8](E) sdk1[13](S)
     2490176 blocks [12/1] [________E___]

unused devices: 

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