Hi all,
I have a 6 drive raid5 with two failed drives (and unbeknownst to me my
spare died awhile back). I noticed the first failed drive a short time
ago and got a drive to replace it (and a new spare too) but before I
could replace it a second drive failed. I was hoping to force the array
back online since the recently failed drive appears to be only slightly
out of sync but get:
mdadm: /dev/md127 assembled from 4 drives - not enough to start the array.
I put some important data on this array so I'm really hoping someone can
provide guidance to force this array online, or otherwise get this array
back to a state allowing me to rebuild.
Many thanks
=====> Device details
# mdadm --examine /dev/sd[bceijkl]1 >> raid.status
/dev/sdb1:
Magic : a92b4efc
Version : 1.2
Feature Map : 0x0
Array UUID : 02f6f0c4:a8f5c56e:3727e29c:a19de7c0
Name : sihnon:MediaArchive (local to host sihnon)
Creation Time : Wed May 13 22:12:44 2015
Raid Level : raid5
Raid Devices : 6
Avail Dev Size : 7813771264 (3725.90 GiB 4000.65 GB)
Array Size : 19534425600 (18629.48 GiB 20003.25 GB)
Used Dev Size : 7813770240 (3725.90 GiB 4000.65 GB)
Data Offset : 262144 sectors
Super Offset : 8 sectors
Unused Space : before=262064 sectors, after=1024 sectors
State : clean
Device UUID : 5d62e5b4:7b737514:f9dbae72:b8b8722a
Update Time : Tue Jul 23 18:51:47 2019
Checksum : 955857e3 - correct
Events : 83013
Layout : left-symmetric
Chunk Size : 512K
Device Role : Active device 3
Array State : AAAAA. ('A' == active, '.' == missing, 'R' == replacing)
/dev/sdc1:
Magic : a92b4efc
Version : 1.2
Feature Map : 0x0
Array UUID : 02f6f0c4:a8f5c56e:3727e29c:a19de7c0
Name : sihnon:MediaArchive (local to host sihnon)
Creation Time : Wed May 13 22:12:44 2015
Raid Level : raid5
Raid Devices : 6
Avail Dev Size : 7813771264 (3725.90 GiB 4000.65 GB)
Array Size : 19534425600 (18629.48 GiB 20003.25 GB)
Used Dev Size : 7813770240 (3725.90 GiB 4000.65 GB)
Data Offset : 262144 sectors
Super Offset : 8 sectors
Unused Space : before=262064 sectors, after=1024 sectors
State : clean
Device UUID : 3480130f:e92356e5:ea86116d:4b77d461
Update Time : Wed Jul 24 12:30:48 2019
Checksum : f22787ec - correct
Events : 83042
Layout : left-symmetric
Chunk Size : 512K
Device Role : Active device 0
Array State : AAA.A. ('A' == active, '.' == missing, 'R' == replacing)
/dev/sde1:
Magic : a92b4efc
Version : 1.2
Feature Map : 0x0
Array UUID : 02f6f0c4:a8f5c56e:3727e29c:a19de7c0
Name : sihnon:MediaArchive (local to host sihnon)
Creation Time : Wed May 13 22:12:44 2015
Raid Level : raid5
Raid Devices : 6
Avail Dev Size : 7813771264 (3725.90 GiB 4000.65 GB)
Array Size : 19534425600 (18629.48 GiB 20003.25 GB)
Used Dev Size : 7813770240 (3725.90 GiB 4000.65 GB)
Data Offset : 262144 sectors
Super Offset : 8 sectors
Unused Space : before=262064 sectors, after=1024 sectors
State : active
Device UUID : bebdb2e7:254a19f3:22c6f198:678aabac
Update Time : Sun Jul 7 02:46:07 2019
Checksum : 4f2d9e6b - correct
Events : 38721
Layout : left-symmetric
Chunk Size : 512K
Device Role : Active device 5
Array State : AAAAAA ('A' == active, '.' == missing, 'R' == replacing)
/dev/sdi1:
Magic : a92b4efc
Version : 1.2
Feature Map : 0x2
Array UUID : 02f6f0c4:a8f5c56e:3727e29c:a19de7c0
Name : sihnon:MediaArchive (local to host sihnon)
Creation Time : Wed May 13 22:12:44 2015
Raid Level : raid5
Raid Devices : 6
Avail Dev Size : 7813771264 (3725.90 GiB 4000.65 GB)
Array Size : 19534425600 (18629.48 GiB 20003.25 GB)
Used Dev Size : 7813770240 (3725.90 GiB 4000.65 GB)
Data Offset : 262144 sectors
Super Offset : 8 sectors
Recovery Offset : 7397574840 sectors
Unused Space : before=262056 sectors, after=1024 sectors
State : clean
Device UUID : 0021c48b:f64ed09e:61790da8:5647f07d
Update Time : Sun Jul 7 12:56:23 2019
Bad Block Log : 512 entries available at offset 72 sectors
Checksum : 384d1307 - correct
Events : 39824
Layout : left-symmetric
Chunk Size : 512K
Device Role : Active device 5
Array State : AAAAAA ('A' == active, '.' == missing, 'R' == replacing)
/dev/sdj1:
Magic : a92b4efc
Version : 1.2
Feature Map : 0x0
Array UUID : 02f6f0c4:a8f5c56e:3727e29c:a19de7c0
Name : sihnon:MediaArchive (local to host sihnon)
Creation Time : Wed May 13 22:12:44 2015
Raid Level : raid5
Raid Devices : 6
Avail Dev Size : 7813771264 (3725.90 GiB 4000.65 GB)
Array Size : 19534425600 (18629.48 GiB 20003.25 GB)
Used Dev Size : 7813770240 (3725.90 GiB 4000.65 GB)
Data Offset : 262144 sectors
Super Offset : 8 sectors
Unused Space : before=262056 sectors, after=1024 sectors
State : clean
Device UUID : d2e15f83:7054a78d:9039968b:5f450d3b
Update Time : Wed Jul 24 12:30:48 2019
Bad Block Log : 512 entries available at offset 72 sectors
Checksum : 68a9b1b - correct
Events : 83042
Layout : left-symmetric
Chunk Size : 512K
Device Role : Active device 4
Array State : AAA.A. ('A' == active, '.' == missing, 'R' == replacing)
/dev/sdk1:
Magic : a92b4efc
Version : 1.2
Feature Map : 0x0
Array UUID : 02f6f0c4:a8f5c56e:3727e29c:a19de7c0
Name : sihnon:MediaArchive (local to host sihnon)
Creation Time : Wed May 13 22:12:44 2015
Raid Level : raid5
Raid Devices : 6
Avail Dev Size : 7813771264 (3725.90 GiB 4000.65 GB)
Array Size : 19534425600 (18629.48 GiB 20003.25 GB)
Used Dev Size : 7813770240 (3725.90 GiB 4000.65 GB)
Data Offset : 262144 sectors
Super Offset : 8 sectors
Unused Space : before=262064 sectors, after=1024 sectors
State : clean
Device UUID : 1fae7fad:20afca9a:5aaa7456:e2ef3fe6
Update Time : Wed Jul 24 12:30:48 2019
Checksum : b3d6dd20 - correct
Events : 83042
Layout : left-symmetric
Chunk Size : 512K
Device Role : Active device 2
Array State : AAA.A. ('A' == active, '.' == missing, 'R' == replacing)
/dev/sdl1:
Magic : a92b4efc
Version : 1.2
Feature Map : 0x0
Array UUID : 02f6f0c4:a8f5c56e:3727e29c:a19de7c0
Name : sihnon:MediaArchive (local to host sihnon)
Creation Time : Wed May 13 22:12:44 2015
Raid Level : raid5
Raid Devices : 6
Avail Dev Size : 7813771264 (3725.90 GiB 4000.65 GB)
Array Size : 19534425600 (18629.48 GiB 20003.25 GB)
Used Dev Size : 7813770240 (3725.90 GiB 4000.65 GB)
Data Offset : 262144 sectors
Super Offset : 8 sectors
Unused Space : before=262064 sectors, after=1024 sectors
State : clean
Device UUID : 3530d19c:9c2f6050:940bffec:42e7d58e
Update Time : Wed Jul 24 12:30:48 2019
Checksum : 97de3853 - correct
Events : 83042
Layout : left-symmetric
Chunk Size : 512K
Device Role : Active device 1
Array State : AAA.A. ('A' == active, '.' == missing, 'R' == replacing)
