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n_c's avatar
n_c
Aspirant
Dec 08, 2021
Solved

ReadyNas 104 Data Deleted

Hi There,   Hoping someone can help   I have a ReadyNAS 104. It had 3 4TB drives in it that were filling up so I bought a 4th 4TB drive (they all match) and popped it in. The NAS did a re-synch f...
  • StephenB's avatar
    StephenB
    Dec 15, 2021
    n_c wrote:

    Thanks Sandshark 

     

    I get "Command not found" when I run btrfs  filesystem  resize  max  /data

    You need to log in as root, not admin.  The root password is the same as the admin password.

n_c's avatar
n_c
Aspirant
Dec 08, 2021

Yes, both. When I added the 4th disk, it did a resync

 

When it was done and I was able to log into the interface again, I had a warning that all 4 disks were inactive.

 

I stupidly decided to remove the 4th disk again and now it's doing a resync again...which will apparently take ~80hrs

 

I was thinkining I may have to call Netgear for this already but I'll wait and see if anyone else responds

 

thank you!

StephenB's avatar
StephenB
Guru - Experienced User
Dec 08, 2021
n_c wrote:

 

I stupidly decided to remove the 4th disk again and now it's doing a resync again...

 

Not the best idea.  But the fact that it is resyncing is encouraging.  I think it suggests that there's a good chances of getting your data back with minimal loss.

  • n_c's avatar
    n_c
    Aspirant
    Dec 14, 2021

    Great news! rebooting remounted my volumes and my data is intact!

     

    that being said, after adding my 4th 4TB drive, I still only have just under 8TB of space. Anyone know why the new disk doesn't seem to have been added to the volume? 

    • Sandshark's avatar
      Sandshark
      Sensei - Experienced User
      Dec 15, 2021

      Please post the response to cat  /proc/mdstat from ssh or the contents of mdstat.log from the downloaded log zip file.

      • n_c's avatar
        n_c
        Aspirant
        Dec 15, 2021

        Hi Sandshark 

         

        my replies keep getting deleted...not sure why. Trying again:

         

        Personalities : [raid0] [raid1] [raid10] [raid6] [raid5] [raid4]
        md127 : active raid5 sdd3[0] sda3[4] sdb3[3] sdc3[2]
        11706500352 blocks super 1.2 level 5, 64k chunk, algorithm 2 [4/4] [UUUU]

        md1 : active raid10 sdb2[0] sda2[3] sdd2[2] sdc2[1]
        1044480 blocks super 1.2 512K chunks 2 near-copies [4/4] [UUUU]

        md0 : active raid1 sdd1[0] sda1[4] sdb1[3] sdc1[2]
        4190208 blocks super 1.2 [4/4] [UUUU]

        unused devices: <none>
        /dev/md/0:
        Version : 1.2
        Creation Time : Tue Aug 12 18:35:30 2014
        Raid Level : raid1
        Array Size : 4190208 (4.00 GiB 4.29 GB)
        Used Dev Size : 4190208 (4.00 GiB 4.29 GB)
        Raid Devices : 4
        Total Devices : 4
        Persistence : Superblock is persistent

        Update Time : Tue Dec 14 18:27:07 2021
        State : clean
        Active Devices : 4
        Working Devices : 4
        Failed Devices : 0
        Spare Devices : 0

        Consistency Policy : unknown

        Name : 0e35f548:0 (local to host 0e35f548)
        UUID : 739c618f:77ddeea2:afbeefc8:84c39546
        Events : 6109

        Number Major Minor RaidDevice State
        0 8 49 0 active sync /dev/sdd1
        2 8 33 1 active sync /dev/sdc1
        3 8 17 2 active sync /dev/sdb1
        4 8 1 3 active sync /dev/sda1
        /dev/md/1:
        Version : 1.2
        Creation Time : Wed Dec 8 14:18:38 2021
        Raid Level : raid10
        Array Size : 1044480 (1020.00 MiB 1069.55 MB)
        Used Dev Size : 522240 (510.00 MiB 534.77 MB)
        Raid Devices : 4
        Total Devices : 4
        Persistence : Superblock is persistent

        Update Time : Tue Dec 14 18:27:09 2021
        State : clean
        Active Devices : 4
        Working Devices : 4
        Failed Devices : 0
        Spare Devices : 0

        Layout : near=2
        Chunk Size : 512K

        Consistency Policy : unknown

        Name : 0e35f548:1 (local to host 0e35f548)
        UUID : d6b35c78:d1b29a7a:2a6a20a0:3fcce611
        Events : 19

        Number Major Minor RaidDevice State
        0 8 18 0 active sync set-A /dev/sdb2
        1 8 34 1 active sync set-B /dev/sdc2
        2 8 50 2 active sync set-A /dev/sdd2
        3 8 2 3 active sync set-B /dev/sda2
        /dev/md/data-0:
        Version : 1.2
        Creation Time : Tue Aug 12 18:35:31 2014
        Raid Level : raid5
        Array Size : 11706500352 (11164.19 GiB 11987.46 GB)
        Used Dev Size : 3902166784 (3721.40 GiB 3995.82 GB)
        Raid Devices : 4
        Total Devices : 4
        Persistence : Superblock is persistent

        Update Time : Tue Dec 14 18:19:09 2021
        State : clean
        Active Devices : 4
        Working Devices : 4
        Failed Devices : 0
        Spare Devices : 0

        Layout : left-symmetric
        Chunk Size : 64K

        Consistency Policy : unknown

        Name : 0e35f548:data-0 (local to host 0e35f548)
        UUID : bb53eb3e:7f6d1c7e:b8e3641b:7dc5aaa7
        Events : 161745

        Number Major Minor RaidDevice State
        0 8 51 0 active sync /dev/sdd3
        2 8 35 1 active sync /dev/sdc3
        3 8 19 2 active sync /dev/sdb3
        4 8 3 3 active sync /dev/sda3

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