A drive on one of my Hetzner servers failed yesterday. I've replaced it once before, but this time it just will not work.
After I copy the GPT to the new disk, I add one of the partitions to the array, like so:
mdadm /dev/md2 -a /dev/sda3
But then all I get is "spare rebuilding"
/dev/md2: Version : 1.2 Creation Time : Mon Aug 6 12:26:06 2012 Raid Level : raid1 Array Size : 1073740664 (1024.00 GiB 1099.51 GB) Used Dev Size : 1073740664 (1024.00 GiB 1099.51 GB) Raid Devices : 2 Total Devices : 2 Persistence : Superblock is persistent Update Time : Fri Nov 27 21:20:22 2015 State : clean, degraded, recovering Active Devices : 1 Working Devices : 2 Failed Devices : 0 Spare Devices : 1 Rebuild Status : 0% complete Name : rescue:2 (local to host rescue) UUID : 22dec46b:5085ad15:c6afdce0:7f025da4 Events : 17901232 Number Major Minor RaidDevice State 2 8 19 0 active sync /dev/sdb3 3 8 3 1 spare rebuilding /dev/sda3
The rebuild just stops after +/- 25% (Which I believe was how full the partition was, but I don't know if that's how it should behave)
And the disk just stays a "spare", and I have no idea how to activate it.
So does anyone know what I can do?