OMV 5 Create raid not showing all drives

  • New system with OMV 0.5 installed and upgraded.
    Had AOC-SASLP-MV8 HDD controller card.
    Physical Disks view show all 8 Drives.
    When I go to create a Raid it only give me 2 out of 8 to choice.
    Did a wipe of all the drives with no luck.


    Hostname *
    Version 0.5.9 (Sardaukar)
    Processor Intel(R) Core(TM)2 CPU 6420 @ 2.13GHz
    Kernel Linux 2.6.32-5-amd64
    System time Thu 12 Sep 2013 12:26:12 PM EDT
    Uptime 0 days 0 hours 1 minute 51 seconds
    Load average 0.15, 0.07, 0.02
    CPU usage 0%

    • Offizieller Beitrag

    That is a hardware raid card. Unless you are running it in IT mode (that is what LSI calls it), you need to setup the raid array on the card. Then you would just create a filesystem not a software based array (which is what the web interface creates). If you are running in IT mode, you may still need to change some settings on the card.

    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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  • It is in IT mode.
    I had it in another system running OMV 0.4 with no problems.
    I have the AOC-SAS2LP-MV8 version in a system with 0.4 on it now running fine.
    As stated OMV sees all the drives under physical disks.


    Thanks for the reply

    • Offizieller Beitrag

    I would run the following commands on each drive then:


    mdadm --zero-superblock /dev/sdX
    parted /dev/sdX mklabel msdos


    Then see if they show up in the web interface.

    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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  • When I run mdadm --zero-superblock /dev/sdX
    I get Unrecognised md component drvice - /dev/sdX


    I did replace X with my drives b - i


    The other command parted /dev/sdX mklabel msdos ran fine
    but did not fix issue.

    • Offizieller Beitrag

    If the zero-superblock command didn't work, they must not be part of an array anymore. Not sure why the web interface isn't recognizing them. You could try manually creating the array. Assuming you want raid 5:


    mdadm --create --verbose /dev/md127 --level=5 /dev/sd[bcdefghi]

    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!

  • This worked.
    Started a format on each disk using mkfs -t ext3 /dev/sdX
    Cancled the format and all the disk showed up when I tried to create raid.
    Don't know why that worked but it did.


    Raid creation fail after all that because one of my disk was bad.
    Will try again when I get a replacement.


    Thanks for all the help.

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