Disk 2 in pool 1 flagged a warning so I ordered a replacement, but in the meantime, disk 3 (which had been ok) died completely. As a result, I swapped out disk 3 and replaced it with the new one. Disk 2 with a warning is still in place, and I've ordered a second replacement, but that's for later.
I've done this kind of maintenance in the past and everything has recovered automatically, but now despite all my efforts I can't get the RAID array to rebuild.
Below is the output of md_checker which shows disk 3 as missing from group 1. However it is definitely in place and can be seen in the QNAP GUI.
Any help/suggestions would be very appreciated! I must admit I'm not an expert with the raid related commands.
I have a suspicion that the issue could be due to the Last Update Time on disk 2 being far in the past, however didn't find any info on this.
Code: Select all
[~] # md_checker
Welcome to MD superblock checker (v2.0) - have a nice day~
Scanning system...
RAID metadata found!
UUID: 9888062c:f4796f14:581618cd:0e30e7cd
Level: raid5
Devices: 4
Name: md1
Chunk Size: 512K
md Version: 1.0
Creation Time: Jan 16 12:29:04 2022
Status: OFFLINE
===============================================================================================
Enclosure | Port | Block Dev Name | # | Status | Last Update Time | Events | Array State
===============================================================================================
NAS_HOST 1 /dev/sdc3 0 Active Aug 11 04:00:16 2022 172767 A.AA
NAS_HOST 2 /dev/sda3 1 Active Jul 28 19:07:26 2022 23742 AAAA
---------------------------------- 2 Missing -------------------------------------------
NAS_HOST 4 /dev/sdd3 3 Active Aug 11 04:00:16 2022 172767 A.AA
===============================================================================================
RAID metadata found!
UUID: 98d281d2:4fb39d64:3ad92197:736cc7e7
Level: raid5
Devices: 4
Name: md2
Chunk Size: 512K
md Version: 1.0
Creation Time: Dec 27 16:25:12 2017
Status: ONLINE (md2) [UUUU]
===============================================================================================
Enclosure | Port | Block Dev Name | # | Status | Last Update Time | Events | Array State
===============================================================================================
NAS_HOST 5 /dev/sde3 0 Active Aug 13 18:48:53 2022 387 AAAA
NAS_HOST 6 /dev/sdf3 1 Active Aug 13 18:48:53 2022 387 AAAA
NAS_HOST 7 /dev/sdg3 2 Active Aug 13 18:48:53 2022 387 AAAA
NAS_HOST 8 /dev/sdh3 3 Active Aug 13 18:48:53 2022 387 AAAA
===============================================================================================
[~] #