2Big Network 2, Hard disk 2 failed

[manelppa]

Here are the post following your request :
cat /proc/mdstat :

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Personalities : [linear] [multipath] [raid0] [raid1] [raid6] [raid5] [raid4] [raid10]
md124 : inactive sdb2[1](S)
      1951503768 blocks super 1.0
       
md125 : active raid1 sdb9[0]
      874432 blocks [2/1] [U_]
     
md126 : inactive sdb5[1](S)
      256896 blocks
       
md127 : active raid1 sdb7[0]
      6912 blocks [2/1] [U_]


[manelppa]

Here is the result after "mdadm --examine /dev/sdb2"

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Magic : a92b4efc
        Version : 1.0
    Feature Map : 0x2
     Array UUID : 314180ec:946b243e:712e8d71:6a260445
           Name : LaCie-2big-2:4
  Creation Time : Sat Feb 18 19:36:38 2017
     Raid Level : raid1
   Raid Devices : 2

 Avail Dev Size : 3903007536 (1861.10 GiB 1998.34 GB)
     Array Size : 1951503768 (1861.10 GiB 1998.34 GB)
   Super Offset : 3903007792 sectors
Recovery Offset : 487876096 sectors
          State : clean
    Device UUID : 08a1e732:26e2d5a6:60a750ca:df424fe3

    Update Time : Sat Jun  3 19:38:07 2017
       Checksum : 983d4c76 - correct
         Events : 61892


   Device Role : Active device 1
   Array State : AA ('A' == active, '.' == missing)


[Jocko]

So stop the raid md124

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mdadm -S /dev/md124

Try to create again md4 but with this line

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mdadm --assemble /dev/md4 /dev/sdb2 --force --run

and see if the raid device has an active status

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cat /proc/mdstat

See you later
:z)

[manelppa]

Hello Jocko,
Thanks a lot your explanation. I've been able to assemble the md4 (see the post)

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root@ubuntu:~# mdadm -S /dev/md124
mdadm: stopped /dev/md124
root@ubuntu:~# mdadm --assemble /dev/md4 /dev/sdb2 --force --run
mdadm: /dev/md4 has been started with 0 drives (out of 2) and 1 rebuilding.
root@ubuntu:~# cat /proc/mdstat
Personalities : [linear] [multipath] [raid0] [raid1] [raid6] [raid5] [raid4] [raid10]
md4 : active raid1 sdb2[1]
      1951503768 blocks super 1.0 [2/1] [_U]
     
md125 : inactive sdb5[1](S)
      256896 blocks
       
md126 : active raid1 sdb9[0]
      874432 blocks [2/1] [U_]
     
md127 : active raid1 sdb7[0]
      6912 blocks [2/1] [U_]
     
unused devices: <none>


[manelppa]

HURRAY : DATA ARE VISIBLE AND I CAN BACKUP THEM
:-)

Next step would be to delete the hard disk and recreate completely as original LaCie with Firmware LaCie. DO you know the best workaround for that or should I use the procedure available at : http://lacie.nas-central.org/wiki/Insta ... ks_(2Big_2)

Awaiting for your advices, but not urgent. I know you have plenty to do

Regards,

[Jocko]

Next step would be to delete the hard disk and recreate completely as original LaCie with Firmware LaCie. DO you know the best workaround for that or should I use the procedure available at :

yes you can do that or install our firmware ;)