linear raid gone after reboot

    • OMV 2.x

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    • linear raid gone after reboot

      Hello,

      I have the same problem as so many others and I have already read lots of threads regarding this issue.
      However, I have not found a solution for my problem.

      I have rebooted my OMV and all of a sudden my linear raid consisting of two brand new 6 TB WD Red disks was gone.
      It was not the first time I rebooted the server, nor have I done something special before the reboot (I was resetting the permissions on a shared folder, because it was read-only for some reason).

      I work as a developer and I think I have quite some technical knowledge, but my experience with raids is little and I'm a Linux newbie ;)

      Here is the output from the support tab:

      Source Code

      1. ​Personalities : [linear]
      2. md0 : inactive sdc[1]
      3. 5860522576 blocks super 1.2
      4. unused devices: <none>
      5. /dev/sda1: UUID="88f1fb03-8b90-474b-8e19-2c821eb44dd4" TYPE="ext4"
      6. /dev/sda5: UUID="b27e24fa-da81-4019-ba96-28da337b671f" TYPE="swap"
      7. /dev/sdc: UUID="4a0cebf8-3297-5443-fb4b-b9655c49daf8" UUID_SUB="7038d1f7-fa71-557e-3777-faccc23e956c" LABEL="omvNAS:files" TYPE="linux_raid_member"
      8. Disk /dev/sda: 128.0 GB, 128035676160 bytes
      9. 255 heads, 63 sectors/track, 15566 cylinders, total 250069680 sectors
      10. Units = sectors of 1 * 512 = 512 bytes
      11. Sector size (logical/physical): 512 bytes / 512 bytes
      12. I/O size (minimum/optimal): 512 bytes / 512 bytes
      13. Disk identifier: 0x0001496c
      14. Device Boot Start End Blocks Id System
      15. /dev/sda1 * 2048 239855615 119926784 83 Linux
      16. /dev/sda2 239857662 250068991 5105665 5 Extended
      17. /dev/sda5 239857664 250068991 5105664 82 Linux swap / Solaris
      18. Disk /dev/sdb: 6001.2 GB, 6001175126016 bytes
      19. 256 heads, 63 sectors/track, 726751 cylinders, total 11721045168 sectors
      20. Units = sectors of 1 * 512 = 512 bytes
      21. Sector size (logical/physical): 512 bytes / 4096 bytes
      22. I/O size (minimum/optimal): 4096 bytes / 4096 bytes
      23. Disk identifier: 0x00000000
      24. Device Boot Start End Blocks Id System
      25. /dev/sdb1 1 4294967295 2147483647+ ee GPT
      26. Partition 1 does not start on physical sector boundary.
      27. Disk /dev/sdc: 6001.2 GB, 6001175126016 bytes
      28. 256 heads, 63 sectors/track, 726751 cylinders, total 11721045168 sectors
      29. Units = sectors of 1 * 512 = 512 bytes
      30. Sector size (logical/physical): 512 bytes / 4096 bytes
      31. I/O size (minimum/optimal): 4096 bytes / 4096 bytes
      32. Disk identifier: 0x00000000
      33. Device Boot Start End Blocks Id System
      34. /dev/sdc1 1 4294967295 2147483647+ ee GPT
      35. Partition 1 does not start on physical sector boundary.
      Display All


      If it is neccessary I can reformat everything as the data is still available on my old NAS, but I had to copy 4 TB over the network, which I would not like to repeat if possible ;)

      Any help would be highly appreciated!

      Thanks,
      Robert
    • A pool solution is something we're you grab two formated and mounted filesystems and join them into another mount point. That mount point will display contents from both disks as they were one. If both are empty, depending on the solution folders will be created in a way to keep the usage balanced.
      if one of the disk fails you'll loose data from that disk only.

      wipe the disks means deleting its contents and erasing the partition signature.
      New wiki
      chat support at #openmediavault@freenode IRC | Spanish & English | GMT+10
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      openmediavault discord server
    • Overlayfs will come with omv3 (Debian Jessie) with backports kernel.

      permissions issues exist because people don't reset their branch disk, keep insisting on the pool, but doesn't work. There is no acl support there though for aufs.
      New wiki
      chat support at #openmediavault@freenode IRC | Spanish & English | GMT+10
      telegram.me/openmediavault broadcast channel
      openmediavault discord server