2Big Network 2, Hard disk 2 failed

[manelppa]

Here are the last post cap /proc...

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root@fvdw-sta-kirkwood:/ # cat /proc/mdstat
Personalities : [linear] [raid0] [raid1] [raid10] [raid6] [raid5] [raid4]
md2 : active raid1 sdb9[2](F) sda9[0]
      874432 blocks [2/1] [U_]
      [>....................]  recovery =  0.0% (0/874432) finish=60117.2min speed=0K/sec
     
md1 : active raid1 sdb8[2](F) sda8[0]
      850304 blocks [2/1] [U_]
     
unused devices: <none>
root@fvdw-sta-kirkwood:/ #



[Jocko]

ok

Previously did you run these commands ?

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mdadm --zero-superblock /dev/sdb8
mdadm --zero-superblock /dev/sdb9

[manelppa]

Yes, as you mentionned.

[manelppa]

The process is terminated and I posted to you the last cat /proc/mdstat

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root@fvdw-sta-kirkwood:/ # cat /proc/mdstat
Personalities : [linear] [raid0] [raid1] [raid10] [raid6] [raid5] [raid4]
md2 : active raid1 sdb9[2](F) sda9[0]
      874432 blocks [2/1] [U_]
      [>....................]  recovery =  0.0% (0/874432) finish=60117.2min speed=0K/sec
     
md1 : active raid1 sdb8[2](F) sda8[0]
      850304 blocks [2/1] [U_]
     
unused devices: <none>
root@fvdw-sta-kirkwood:/ #


Is the result normal ?

[Jocko]

It is the expected status.

So stop these 2 raids

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mdadm --stop /dev/md1
mdadm --stop /dev/md2


Try to assemble again md1

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mdadm --assemble /dev/md1 /dev/sda8 --run
mdadm --detail /dev/md1
mdadm --zero-superblock /dev/sdb8
mdadm --examine /dev/sdb8
mdadm --manage /dev/md1 --add /dev/sdb8
mdadm --detail /dev/md1



[manelppa]

Here is the first result after the cmd "mdadm --detail /dev/md1"

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root@fvdw-sta-kirkwood:/ # mdadm --detail /dev/md1
/dev/md1:
        Version : 0.90
  Creation Time : Fri Jan 27 19:45:42 2017
     Raid Level : raid1
     Array Size : 850304 (830.51 MiB 870.71 MB)
  Used Dev Size : 850304 (830.51 MiB 870.71 MB)
   Raid Devices : 2
  Total Devices : 1
Preferred Minor : 1
    Persistence : Superblock is persistent

    Update Time : Thu Jun  8 20:05:13 2017
          State : clean, degraded
 Active Devices : 1
Working Devices : 1
 Failed Devices : 0
  Spare Devices : 0

           UUID : 1c8ffb0e:2bb8a661:e368bf24:bd0fce41
         Events : 0.29

    Number   Major   Minor   RaidDevice State
       0       8        8        0      active sync   /dev/sda8
       1       0        0        1      removed



[Jocko]

this is ok

[Jocko]

on the add command, try to use the flag 'verbose'

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mdadm --manage /dev/md1 --add /dev/sdb8 --verbose

[manelppa]

Detail of the result after the cmd "examine /dev/sdb8"

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root@fvdw-sta-kirkwood:/ # mdadm --examine /dev/sdb8
mdadm: No md superblock detected on /dev/sdb8.
root@fvdw-sta-kirkwood:/ #


[Jocko]

So try again to add it