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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 inse...
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!
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
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
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