Hi,
the disk holding backup-file unfortunately died during an mdadm --grow
/dev/md0 --level=6 --raid-devices=4 --backup-file=/mnt/backup/md0.bak.
The speed of the reshape dropped to 0K/sec, apart from that the RAID
seems fine.
Personalities : [raid6] [raid5] [raid4]
md0 : active raid6 sda1[4] sdc1[2] sdd1[3] sdb1[1]
2930271232 blocks super 1.2 level 6, 512k chunk, algorithm 18
[4/3] [UUU_]
[==========>..........] reshape = 53.6% (786497536/1465135616)
finish=55405950.5min speed=0K/sec
unused devices: <none>
/dev/md0:
Version : 1.2
Creation Time : Fri Feb 11 21:10:18 2011
Raid Level : raid6
Array Size : 2930271232 (2794.52 GiB 3000.60 GB)
Used Dev Size : 1465135616 (1397.26 GiB 1500.30 GB)
Raid Devices : 4
Total Devices : 4
Persistence : Superblock is persistent
Update Time : Mon Aug 26 13:32:09 2013
State : clean, degraded, recovering
Active Devices : 3
Working Devices : 4
Failed Devices : 0
Spare Devices : 1
Layout : left-symmetric-6
Chunk Size : 512K
Reshape Status : 53% complete
New Layout : left-symmetric
Name : backup:0 (local to host backup)
UUID : 832a100a:2996471b:51867bfa:aaf5c38f
Events : 1053146
Number Major Minor RaidDevice State
3 8 49 0 active sync /dev/sdd1
1 8 17 1 active sync /dev/sdb1
2 8 33 2 active sync /dev/sdc1
4 8 1 3 spare rebuilding /dev/sda1
What's the right thing to do now, is this recoverable? I have backups of
course and since the RAID is still working I could just copy everything
off and recreate it, but I'd rather fix this the "right way" than to set
up a new system.
Thank you,
Iruwen
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