I have 4 drives set up as 2 pairs. The first part has 3 partitions on
it and it seems 1 of those drives is failing (going to have to figure
out which drive it is too so I don't pull the wrong one out of the case)
It's been awhile since I had to replace a drive in the array and my
notes are a bit confusing. I'm not sure which I need to use to remove
the drive:
sudo mdadm --manage /dev/md0 --fail /dev/sdb
sudo mdadm --manage /dev/md0 --remove /dev/sdb
sudo mdadm --manage /dev/md1 --fail /dev/sdb
sudo mdadm --manage /dev/md1 --remove /dev/sdb
sudo mdadm --manage /dev/md2 --fail /dev/sdb
sudo mdadm --manage /dev/md2 --remove /dev/sdb
or
sudo mdadm /dev/md0 --fail /dev/sdb1 --remove /dev/sdb1
sudo mdadm /dev/md1 --fail /dev/sdb2 --remove /dev/sdb2
sudo mdadm /dev/md2 --fail /dev/sdb3 --remove /dev/sdb3
I'm not sure if I fail the drive partition or whole drive for each.
-------------------------------------
The mails I got are:
-------------------------------------
A Fail event had been detected on md device /dev/md0.
It could be related to component device /dev/sdb1.
Faithfully yours, etc.
P.S. The /proc/mdstat file currently contains the following:
Personalities : [raid1] [raid6] [raid5] [raid4] [multipath]
md1 : active raid1 sdb2[2](F) sda2[0]
4891712 blocks [2/1] [U_]
md2 : active raid1 sdb3[1] sda3[0]
459073344 blocks [2/2] [UU]
md3 : active raid1 sdd1[1] sdc1[0]
488383936 blocks [2/2] [UU]
md0 : active raid1 sdb1[2](F) sda1[0]
24418688 blocks [2/1] [U_]
unused devices: <none>
-------------------------------------
A Fail event had been detected on md device /dev/md1.
It could be related to component device /dev/sdb2.
Faithfully yours, etc.
P.S. The /proc/mdstat file currently contains the following:
Personalities : [raid1] [raid6] [raid5] [raid4] [multipath]
md1 : active raid1 sdb2[2](F) sda2[0]
4891712 blocks [2/1] [U_]
md2 : active raid1 sdb3[1] sda3[0]
459073344 blocks [2/2] [UU]
md3 : active raid1 sdd1[1] sdc1[0]
488383936 blocks [2/2] [UU]
md0 : active raid1 sdb1[2](F) sda1[0]
24418688 blocks [2/1] [U_]
unused devices: <none>
-------------------------------------
A Fail event had been detected on md device /dev/md2.
It could be related to component device /dev/sdb3.
Faithfully yours, etc.
P.S. The /proc/mdstat file currently contains the following:
Personalities : [raid1] [raid6] [raid5] [raid4] [multipath]
md1 : active raid1 sdb2[2](F) sda2[0]
4891712 blocks [2/1] [U_]
md2 : active raid1 sdb3[2](F) sda3[0]
459073344 blocks [2/1] [U_]
md3 : active raid1 sdd1[1] sdc1[0]
488383936 blocks [2/2] [UU]
md0 : active raid1 sdb1[2](F) sda1[0]
24418688 blocks [2/1] [U_]
unused devices: <none>
-------------------------------------
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