Hey guys, some help would be appreciated
So today I thought I'd check if my server case and motherboard support hot-swappable hdd's. What I wanted to accomplish by this is the knowledge that if I had to put another hard drive in, I wouldn't have to offline the system.
So I went in, pulled out a hard drive (it's a front loading case with bays), nothing shut down and I did a small victory dance. But then I got an email the nas.
"A DegradedArray event had been detected on md device /dev/md0."
Now I can't seem to fix the issue.
Under the 'raid management' tab it's showing the array as "Clean, degraded" and here the array details:
Raid Devices : 5
Total Devices : 4
State : clean, degraded
Active Devices : 4
Working Devices : 4
Failed Devices : 0
Spare Devices : 0
Number Major Minor RaidDevice State
0 8 16 0 active sync /dev/sdb
1 0 0 1 removed
2 8 32 2 active sync /dev/sdc
3 8 64 3 active sync /dev/sde
4 8 80 4 active sync /dev/sdf
It's showing the drive as 'removed' yet it's coming up in 'Physical Disks'.
Any ideas?