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ReadyNAS 104 X-Raid Not Expanding

stuart_2k
Aspirant

ReadyNAS 104 X-Raid Not Expanding

Bought the 104 2 years ago with a 4TB hdd with the intention of adding new disks soon after. Fast forward 2 years and I finally got around to putting 3 more 4TB drives in.

 

I assumed that hot inserting them 1 at a time would get X-Raid to create a mirror (Raid 1) on the 2nd disk. It looked like this was happening and it gave me a 17h time for resyncing. About 10 minutes later it said it was complete but the volume was degraded. I thought that was pretty fast for almost 4TB of data and was concerned about the degraded status after it had been fine up until that point.

 

I thought I may as well add the 3rd and 4th disks and see if it jumps straight to Raid 5 and save me a lot of time but that appears to not be the case.

 

Any thoughts? I'm at the stage now where I'm thinking that leaving it for 24h and hoping it sorts itself out but it's worth asking here in case I'm just wasting my time.

Model: RN104|ReadyNAS 100 Series
Message 1 of 6

Accepted Solutions
stuart_2k
Aspirant

Re: ReadyNAS 104 X-Raid Not Expanding

So, I ended up backing everything up again just to be sure, factory resetting and then it picked up all the disks and then copied it all back.

 

Took a long time, but it's back working again now!

 

Thanks for your help!

View solution in original post

Message 6 of 6

All Replies
Sandshark
Sensei

Re: ReadyNAS 104 X-Raid Not Expanding

Do you have SSH access enabled, and can you post the results of an lsblk command?  It sounds like it my have sync'ed your OS and swap volumes, but not the data one.  You can wait, but I doubt anything will happen.

 

The only reason your one drive arrar wasn't "degraded" is because a single-drive volume never has any redundancy to degrade.  I don't think your data is any more susceptible to loss now than it was with just one drive.

Message 2 of 6
stuart_2k
Aspirant

Re: ReadyNAS 104 X-Raid Not Expanding

Output of the command: lsblk
NAME      MAJ:MIN RM  SIZE RO TYPE   MOUNTPOINT
sda         8:0    0  3.7T  0 disk
├─sda1      8:1    0    4G  0 part
│ └─md0     9:0    0    4G  0 raid1  /
├─sda2      8:2    0  512M  0 part
│ └─md1     9:1    0 1022M  0 raid10 [SWAP]
└─sda3      8:3    0  3.6T  0 part
  └─md127   9:127  0  3.6T  0 raid1  /data
sdb         8:16   0  3.7T  0 disk
├─sdb1      8:17   0    4G  0 part
│ └─md0     9:0    0    4G  0 raid1  /
├─sdb2      8:18   0  512M  0 part
│ └─md1     9:1    0 1022M  0 raid10 [SWAP]
└─sdb3      8:19   0  3.6T  0 part
  └─md127   9:127  0  3.6T  0 raid1  /data
sdc         8:32   0  3.7T  0 disk
├─sdc1      8:33   0    4G  0 part
│ └─md0     9:0    0    4G  0 raid1  /
├─sdc2      8:34   0  512M  0 part
│ └─md1     9:1    0 1022M  0 raid10 [SWAP]
└─sdc3      8:35   0  3.6T  0 part
  └─md127   9:127  0  3.6T  0 raid1  /data
sdd         8:48   0  3.7T  0 disk
├─sdd1      8:49   0    4G  0 part
│ └─md0     9:0    0    4G  0 raid1  /
├─sdd2      8:50   0  512M  0 part
│ └─md1     9:1    0 1022M  0 raid10 [SWAP]
└─sdd3      8:51   0  3.6T  0 part
  └─md127   9:127  0  3.6T  0 raid1  /data
mtdblock0  31:0    0  1.5M  1 disk
mtdblock1  31:1    0  512K  1 disk
mtdblock2  31:2    0    6M  1 disk
mtdblock3  31:3    0    4M  1 disk
mtdblock4  31:4    0  116M  1 disk

Message 3 of 6
stuart_2k
Aspirant

Re: ReadyNAS 104 X-Raid Not Expanding

Did a bit more digging and it looks like the 3 new drives are set as warm spares. It might have synced the partition layout explaining how it was so fast.

 

mdadm --detail /dev/md127
/dev/md127:
        Version : 1.2
  Creation Time : Fri Sep  4 15:22:06 2015
     Raid Level : raid1
     Array Size : 3902166784 (3721.40 GiB 3995.82 GB)
  Used Dev Size : 3902166784 (3721.40 GiB 3995.82 GB)
   Raid Devices : 2
  Total Devices : 4
    Persistence : Superblock is persistent

    Update Time : Mon Nov  6 09:13:05 2017
          State : clean, degraded
 Active Devices : 1
Working Devices : 4
 Failed Devices : 0
  Spare Devices : 3

           Name : 43020200:data-0  (local to host 43020200)
           UUID : b6e671e5:ce113ecb:42d212e3:d636db0b
         Events : 645

    Number   Major   Minor   RaidDevice State
       0       8       51        0      active sync   /dev/sdd3
       -       0        0        1      removed

       1       8       35        -      spare   /dev/sdc3
       2       8       19        -      spare   /dev/sdb3
       3       8        3        -      spare   /dev/sda3

Message 4 of 6
Sandshark
Sensei

Re: ReadyNAS 104 X-Raid Not Expanding

Somehow, it thinks you have a removed drive and it is holding the others in reserve to expand once that drive is replaced.  One thing to do right away is make sure your backup is up to date in case this gets messy and you lose the volume completely.

 

Some things to try:

  • Reboot
  • Disable and re-enable XRAID
  • With XRAID disabled select a drive and "add redundancy" from the drive options for one of them.

If those don't work, perhaps remove the "spare" drives and remove the partitions, then reboot and try all over.

Message 5 of 6
stuart_2k
Aspirant

Re: ReadyNAS 104 X-Raid Not Expanding

So, I ended up backing everything up again just to be sure, factory resetting and then it picked up all the disks and then copied it all back.

 

Took a long time, but it's back working again now!

 

Thanks for your help!

Message 6 of 6
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