How can I know the partition of RAID5 disks

  • did you create the Raid 5 Array with OMV ?


    IN OMV Webgui, you have on the left :


    Storage


    • Storage/Physical Disks
    • Storage/ S.M.A.R.T.
    • Storage/Raid Management
    • Storage/ File Systems


    1st, look in Physical Disks to see you HDDs
    2nd, check Raid Managment to see your array or create it.
    3nd, create a volume with your Raid Array


    i think i am not really far from the truth ;)

  • This only:


    Version : 1.2
    Creation Time : Fri Jan 13 17:07:38 2017
    Raid Level : raid5
    Array Size : 3906766848 (3725.78 GiB 4000.53 GB)
    Used Dev Size : 1953383424 (1862.89 GiB 2000.26 GB)
    Raid Devices : 3
    Total Devices : 3
    Persistence : Superblock is persistent


    Intent Bitmap : Internal


    Update Time : Sun Jan 15 20:19:11 2017
    State : clean
    Active Devices : 3
    Working Devices : 3
    Failed Devices : 0
    Spare Devices : 0


    Layout : left-symmetric
    Chunk Size : 512K


    Name : openmediavault:Store (local to host openmediavault)
    UUID : 4227c21a:da47733c:c2921908:0aabd159
    Events : 2502


    Number Major Minor RaidDevice State
    0 8 0 0 active sync /dev/sda
    1 8 16 1 active sync /dev/sdb
    2 8 32 2 active sync /dev/sdc


    but do not show the partition detail ... How do I know when I formatted discs what fs I used?

  • how do you get these informations ?


    ssh ? webgui ?


    Usually, when you format a disk, you use a tool to format it, and a specific option to precise what kind of format you want, EXT3, EXT4, NTFS (Windows), FAT32 (lol), HSF+ (MacOS).



    On above screens , you can see the choosen file systems. You can also see the Array, and the partition.


    these screens have been took from OMV webgui.

  • ok.
    when i run 1st time OMV, i create a raid 5 array. Then i went to File systems module, and i click on create button, i could see what kind of Device i would use, and then i chose the File System Partition (in my case, ext4).
    So this is the reason why i can see both, md0 and sde1 (see on my pics).


    But you, what is your story ? do you want to start from scratch ? how did the datas went on your HDDs ? do you migrate ? is it your system ?

  • maybe it is the way to follow, but i don't know about your exisiting datas.
    Just to be sure, before reinstalling OMV3, did you backup all your datas?


    Connected by ssh, id/pwd.


    run this:


    Code
    cd /
    ls
    cd media
    ls

    you should have some folders.


    mine has a big name, with letters and numbers. Take its name. Go into this folder and see your datas/shared folders. If ok. By FTP or rsync, backup and then delete all raid/array/volume and re-create all you system.
    to be sure having a clean system.

  • No backup, no data important on RAID5
    I reinstalled OMV3 on /dev/sdd and RAID5 was already ready from first installation.
    Now, there is a way to enter /dev/md0 in table in Storage > File system or not ?
    IF not ... I destroy and create again RAID5 array

  • i am too newbie with OMV (not in raid), so i can't answer to your question. If i were you, i will try, and if nothing works, unplug all drives, delete partition with gparted or equal, and restart from scratch and properly your NAS.
    I learn a lot with reading here and testing on my microserv gen8. OMV is great.
    did you post something about your issues when you had troubles, before reinstall OMV 3.x ?

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