RAID 5 Missing After Drive Failure

  • I have a 8GB DOM to boot with + 5x 2TB RAID 5 array that had a single drive failure. After replacing the burned drive, the RAID array seems to be missing and I can't find it in the menus any longer to remount it. Here are the outputs of the "cat /proc/mdstat", "blkid" and "fdisk -l" commands. Can someone point out what went wrong here and better yet, how to get my array back? I had a drive fail a month ago and replaced that drive no problem. The array rebuilt and was accessible the whole time. This time it's just nowhere to be found?


    • Offizieller Beitrag

    Try:


    mdadm --stop /dev/md127
    mdadm --assemble /dev/md127 /dev/sd[bcdef] --verbose --force

    omv 7.0.5-1 sandworm | 64 bit | 6.8 proxmox kernel

    plugins :: omvextrasorg 7.0 | kvm 7.0.13 | compose 7.1.4 | k8s 7.1.0-3 | cputemp 7.0.1 | mergerfs 7.0.4


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  • Humm. Nope. Since "sdb" is the new drive I just put in, does anything need to be done to it first?


    root@archive:~# mdadm --stop /dev/md127
    mdadm: stopped /dev/md127


    root@archive:~# mdadm --assemble /dev/md127 /dev/sd[bcdef] --verbose --force
    mdadm: looking for devices for /dev/md127
    mdadm: no recogniseable superblock on /dev/sdb
    mdadm: /dev/sdb has no superblock - assembly aborted

    • Offizieller Beitrag

    Try assembling without sdb and then add it later.

    omv 7.0.5-1 sandworm | 64 bit | 6.8 proxmox kernel

    plugins :: omvextrasorg 7.0 | kvm 7.0.13 | compose 7.1.4 | k8s 7.1.0-3 | cputemp 7.0.1 | mergerfs 7.0.4


    omv-extras.org plugins source code and issue tracker - github - changelogs


    Please try ctrl-shift-R and read this before posting a question.

    Please put your OMV system details in your signature.
    Please don't PM for support... Too many PMs!

    • Offizieller Beitrag

    Good to hear :)

    omv 7.0.5-1 sandworm | 64 bit | 6.8 proxmox kernel

    plugins :: omvextrasorg 7.0 | kvm 7.0.13 | compose 7.1.4 | k8s 7.1.0-3 | cputemp 7.0.1 | mergerfs 7.0.4


    omv-extras.org plugins source code and issue tracker - github - changelogs


    Please try ctrl-shift-R and read this before posting a question.

    Please put your OMV system details in your signature.
    Please don't PM for support... Too many PMs!

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