Hi All
I'm not entirely sure this is rescuable. This is an old system that was kept on for scratch storage space, unfortunately it was discovered some data hadn't moved out of this area. The arrays disappeared after taking them offline and rebooting the machine.
I've checked /etc/mdadm.conf
And mdadm --examine across all of the disks
I've assembled from uuid
Ran /proc/mdstat
Any suggestions as to what to try next?
Thanks
Bryan
[root@igmimager dev]# cat /etc/mdadm.conf
ARRAY /dev/md0 metadata=1.2 name=igmimager.ncl.ac.uk:129 UUID=1dc7f560:edbfe144:0531da73:f239c583
ARRAY /dev/md1 metadata=1.2 name=inscribe_data1 UUID=2b00561d:25e97d49:65d13ea0:63aba0b7
ARRAY /dev/md2 metadata=1.2 name=igmimager.ncl.ac.uk:128 UUID=3aee46d0:ced811c7:287c9e2e:c9fcb98d
ARRAY /dev/md3 metadata=1.2 name=inscribe_data5 UUID=4108db00:e338d0eb:64f1c8c0:7c5dd4d2
ARRAY /dev/md4 metadata=1.2 name=igmimager.ncl.ac.uk:0 UUID=bc69e915:891c1a98:083d6b8d:8d99151f
ARRAY /dev/md5 metadata=1.2 name=inscribe_data4 UUID=f83ae16b:c7cf278a:199a0085:d8f68936
[root@igmimager dev]#
[root@igmimager etc]# mdadm --assemble /dev/md0 --uuid 1dc7f560:edbfe144:0531da73:f239c583
[root@igmimager etc]# mdadm --assemble /dev/md1 --uuid 2b00561d:25e97d49:65d13ea0:63aba0b7
[root@igmimager etc]# mdadm --assemble /dev/md2 --uuid 3aee46d0:ced811c7:287c9e2e:c9fcb98d
[root@igmimager etc]# mdadm --assemble /dev/md3 --uuid 4108db00:e338d0eb:64f1c8c0:7c5dd4d2
[root@igmimager etc]# mdadm --assemble /dev/md4 --uuid bc69e915:891c1a98:083d8f68936
mdadm: Bad uuid: bc69e915:891c1a98:083d8f68936
[root@igmimager etc]# mdadm --assemble /dev/md4 --uuid bc69e915:891c1a98:083d6b8d:8d99151f
mdadm: Found some drive for an array that is already active: /dev/md4
mdadm: giving up.
[root@igmimager etc]# mdadm --assemble /dev/md5 --uuid f83ae16b:c7cf278a:199a0085:d8f68936
[root@igmimager etc]# cat /proc/mdstat
Personalities : [raid6] [raid5] [raid4]
md3 : active raid5 sdi1[0] sdl1[4] sdk1[2] sdj1[1]
5860142592 blocks super 1.2 level 5, 512k chunk, algorithm 2 [4/4] [UUUU]
bitmap: 0/15 pages [0KB], 65536KB chunk
md4 : active raid5 sdn[2] sdp[0] sdo[1]
5860148736 blocks super 1.2 level 5, 512k chunk, algorithm 2 [4/3] [UUU_]
bitmap: 9/15 pages [36KB], 65536KB chunk
unused devices: <none>
[root@igmimager dev]# ls
autofs MAKEDEV sda sg18 tty22 tty6
block mapper sdb sg19 tty23 tty60
bsg mcelog sdc sg2 tty24 tty61
bus md sdd sg20 tty25 tty62
cdrom md3 sde sg21 tty26 tty63
cdrw md4 sdf sg22 tty27 tty7
char mem sdg sg23 tty28 tty8
console mpt2ctl sdh sg24 tty29 tty9
core net sdi sg25 tty3 ttyS0
cpu network_latency sdi1 sg26 tty30 ttyS1
cpu_dma_latency network_throughput sdj sg27 tty31 ttyS2
crash null sdj1 sg3 tty32 ttyS3
disk nvram sdk sg4 tty33 uinput
dm-0 oldmem sdk1 sg5 tty34 urandom
dm-1 parport0 sdl sg6 tty35 usbmon0
dm-2 port sdl1 sg7 tty36 usbmon1
dvd ppp sdm sg8 tty37 usbmon2
dvdrw ptmx sdn sg9 tty38 usbmon3
fb pts sdo shm tty39 vcs
fb0 ram0 sdp snapshot tty4 vcs1
fd ram1 sdq sr0 tty40 vcs2
full ram10 sdr stderr tty41 vcs3
fuse ram11 sds stdin tty42 vcs4
hpet ram12 sdt stdout tty43 vcs5
hugepages ram13 sdu systty tty44 vcs6
hvc0 ram14 sdv tty tty45 vcs7
input ram15 sdw tty0 tty46 vcsa
kmsg ram2 sdx tty1 tty47 vcsa1
log ram3 sdy tty10 tty48 vcsa2
loop0 ram4 sdy1 tty11 tty49 vcsa3
loop1 ram5 sdy2 tty12 tty5 vcsa4
loop2 ram6 sg0 tty13 tty50 vcsa5
loop3 ram7 sg1 tty14 tty51 vcsa6
loop4 ram8 sg10 tty15 tty52 vcsa7
loop5 ram9 sg11 tty16 tty53 vga_arbiter
loop6 random sg12 tty17 tty54 vg_igmimager
loop7 raw sg13 tty18 tty55 watchdog
lp0 root sg14 tty19 tty56 zero
lp1 rtc sg15 tty2 tty57
lp2 rtc0 sg16 tty20 tty58
lp3 scd0 sg17 tty21 tty59
[root@igmimager dev]# mdadm --examine /dev/sda
/dev/sda:
MBR Magic : aa55
Partition[0] : 3907029167 sectors at 1 (type ee)
[root@igmimager dev]# mdadm --examine /dev/sdb
/dev/sdb:
MBR Magic : aa55
Partition[0] : 3907029167 sectors at 1 (type ee)
[root@igmimager dev]# mdadm --examine /dev/sdc
/dev/sdc:
MBR Magic : aa55
Partition[0] : 3907029167 sectors at 1 (type ee)
[root@igmimager dev]# mdadm --examine /dev/sdd
/dev/sdd:
MBR Magic : aa55
Partition[0] : 3907029167 sectors at 1 (type ee)
[root@igmimager dev]# mdadm --examine /dev/sde
/dev/sde:
MBR Magic : aa55
Partition[0] : 1953525167 sectors at 1 (type ee)
[root@igmimager dev]# mdadm --examine /dev/sdf
/dev/sdf:
MBR Magic : aa55
Partition[0] : 1953525167 sectors at 1 (type ee)
[root@igmimager dev]# mdadm --examine /dev/sdg
/dev/sdg:
MBR Magic : aa55
Partition[0] : 1953525167 sectors at 1 (type ee)
[root@igmimager dev]# mdadm --examine /dev/sdh
/dev/sdh:
MBR Magic : aa55
Partition[0] : 1953525167 sectors at 1 (type ee)
[root@igmimager dev]# mdadm --examine /dev/sdi
/dev/sdi:
MBR Magic : aa55
Partition[0] : 3907024002 sectors at 63 (type fd)
[root@igmimager dev]# mdadm --examine /dev/sdi1
/dev/sdi1:
Magic : a92b4efc
Version : 1.2
Feature Map : 0x1
Array UUID : 4108db00:e338d0eb:64f1c8c0:7c5dd4d2
Name : inscribe_data5
Creation Time : Tue Nov 4 14:29:13 2014
Raid Level : raid5
Raid Devices : 4
Avail Dev Size : 3906761858 (1862.89 GiB 2000.26 GB)
Array Size : 5860142592 (5588.67 GiB 6000.79 GB)
Used Dev Size : 3906761728 (1862.89 GiB 2000.26 GB)
Data Offset : 262144 sectors
Super Offset : 8 sectors
Unused Space : before=262056 sectors, after=130 sectors
State : clean
Device UUID : dacbe3a5:6eaa2eb8:af08f6e1:4c328ba0
Internal Bitmap : 8 sectors from superblock
Update Time : Mon Jun 6 09:23:33 2016
Bad Block Log : 512 entries available at offset 72 sectors
Checksum : c47214c8 - correct
Events : 4082
Layout : left-symmetric
Chunk Size : 512K
Device Role : Active device 0
Array State : AAAA ('A' == active, '.' == missing, 'R' == replacing)
[root@igmimager dev]# mdadm --examine /dev/sdj
/dev/sdj:
MBR Magic : aa55
Partition[0] : 3907024002 sectors at 63 (type fd)
[root@igmimager dev]# mdadm --examine /dev/sdj1
/dev/sdj1:
Magic : a92b4efc
Version : 1.2
Feature Map : 0x1
Array UUID : 4108db00:e338d0eb:64f1c8c0:7c5dd4d2
Name : inscribe_data5
Creation Time : Tue Nov 4 14:29:13 2014
Raid Level : raid5
Raid Devices : 4
Avail Dev Size : 3906761858 (1862.89 GiB 2000.26 GB)
Array Size : 5860142592 (5588.67 GiB 6000.79 GB)
Used Dev Size : 3906761728 (1862.89 GiB 2000.26 GB)
Data Offset : 262144 sectors
Super Offset : 8 sectors
Unused Space : before=262056 sectors, after=130 sectors
State : clean
Device UUID : cf8bb995:c90196ed:3596b09b:daaf0e95
Internal Bitmap : 8 sectors from superblock
Update Time : Mon Jun 6 09:23:33 2016
Bad Block Log : 512 entries available at offset 72 sectors
Checksum : 97ed372d - correct
Events : 4082
Layout : left-symmetric
Chunk Size : 512K
Device Role : Active device 1
Array State : AAAA ('A' == active, '.' == missing, 'R' == replacing)
[root@igmimager dev]# mdadm --examine /dev/sdk
/dev/sdk:
MBR Magic : aa55
Partition[0] : 3907024002 sectors at 63 (type fd)
[root@igmimager dev]# mdadm --examine /dev/sdk1
/dev/sdk1:
Magic : a92b4efc
Version : 1.2
Feature Map : 0x1
Array UUID : 4108db00:e338d0eb:64f1c8c0:7c5dd4d2
Name : inscribe_data5
Creation Time : Tue Nov 4 14:29:13 2014
Raid Level : raid5
Raid Devices : 4
Avail Dev Size : 3906761858 (1862.89 GiB 2000.26 GB)
Array Size : 5860142592 (5588.67 GiB 6000.79 GB)
Used Dev Size : 3906761728 (1862.89 GiB 2000.26 GB)
Data Offset : 262144 sectors
Super Offset : 8 sectors
Unused Space : before=262056 sectors, after=130 sectors
State : clean
Device UUID : bb4bec12:c5ab5c9d:c06e01aa:bff93d27
Internal Bitmap : 8 sectors from superblock
Update Time : Mon Jun 6 09:23:33 2016
Bad Block Log : 512 entries available at offset 72 sectors
Checksum : 6566c385 - correct
Events : 4082
Layout : left-symmetric
Chunk Size : 512K
Device Role : Active device 2
Array State : AAAA ('A' == active, '.' == missing, 'R' == replacing)
[root@igmimager dev]# mdadm --examine /dev/sdl
/dev/sdl:
MBR Magic : aa55
Partition[0] : 3907024002 sectors at 63 (type fd)
[root@igmimager dev]# mdadm --examine /dev/sdl1
/dev/sdl1:
Magic : a92b4efc
Version : 1.2
Feature Map : 0x1
Array UUID : 4108db00:e338d0eb:64f1c8c0:7c5dd4d2
Name : inscribe_data5
Creation Time : Tue Nov 4 14:29:13 2014
Raid Level : raid5
Raid Devices : 4
Avail Dev Size : 3906761858 (1862.89 GiB 2000.26 GB)
Array Size : 5860142592 (5588.67 GiB 6000.79 GB)
Used Dev Size : 3906761728 (1862.89 GiB 2000.26 GB)
Data Offset : 262144 sectors
Super Offset : 8 sectors
Unused Space : before=262056 sectors, after=130 sectors
State : clean
Device UUID : bd44fe34:7e930cb8:833ca67b:feb4479a
Internal Bitmap : 8 sectors from superblock
Update Time : Mon Jun 6 09:23:33 2016
Bad Block Log : 512 entries available at offset 72 sectors
Checksum : e6d73254 - correct
Events : 4082
Layout : left-symmetric
Chunk Size : 512K
Device Role : Active device 3
Array State : AAAA ('A' == active, '.' == missing, 'R' == replacing)
[root@igmimager dev]# mdadm --examine /dev/sdm
/dev/sdm:
Magic : a92b4efc
Version : 1.2
Feature Map : 0x1
Array UUID : bc69e915:891c1a98:083d6b8d:8d99151f
Name : igmimager.ncl.ac.uk:0 (local to host igmimager.ncl.ac.uk)
Creation Time : Fri Aug 15 10:07:25 2014
Raid Level : raid5
Raid Devices : 4
Avail Dev Size : 3906767024 (1862.89 GiB 2000.26 GB)
Array Size : 5860148736 (5588.67 GiB 6000.79 GB)
Used Dev Size : 3906765824 (1862.89 GiB 2000.26 GB)
Data Offset : 262144 sectors
Super Offset : 8 sectors
Unused Space : before=262064 sectors, after=1200 sectors
State : clean
Device UUID : 5c9e7c6d:1c153f07:dda9dbe8:4b5ee6ae
Internal Bitmap : 8 sectors from superblock
Update Time : Thu May 28 11:23:56 2015
Checksum : 5b0ecf59 - correct
Events : 293
Layout : left-symmetric
Chunk Size : 512K
Device Role : Active device 3
Array State : AAAA ('A' == active, '.' == missing, 'R' == replacing)
[root@igmimager dev]# mdadm --examine /dev/sdn
/dev/sdn:
Magic : a92b4efc
Version : 1.2
Feature Map : 0x1
Array UUID : bc69e915:891c1a98:083d6b8d:8d99151f
Name : igmimager.ncl.ac.uk:0 (local to host igmimager.ncl.ac.uk)
Creation Time : Fri Aug 15 10:07:25 2014
Raid Level : raid5
Raid Devices : 4
Avail Dev Size : 3906767024 (1862.89 GiB 2000.26 GB)
Array Size : 5860148736 (5588.67 GiB 6000.79 GB)
Used Dev Size : 3906765824 (1862.89 GiB 2000.26 GB)
Data Offset : 262144 sectors
Super Offset : 8 sectors
Unused Space : before=262064 sectors, after=1200 sectors
State : clean
Device UUID : 6565a1ae:3964efa8:8c17f442:dd1afbec
Internal Bitmap : 8 sectors from superblock
Update Time : Mon Jun 6 09:24:00 2016
Checksum : d800f44f - correct
Events : 40791
Layout : left-symmetric
Chunk Size : 512K
Device Role : Active device 2
Array State : AAA. ('A' == active, '.' == missing, 'R' == replacing)
[root@igmimager dev]# mdadm --examine /dev/sdo
/dev/sdo:
Magic : a92b4efc
Version : 1.2
Feature Map : 0x1
Array UUID : bc69e915:891c1a98:083d6b8d:8d99151f
Name : igmimager.ncl.ac.uk:0 (local to host igmimager.ncl.ac.uk)
Creation Time : Fri Aug 15 10:07:25 2014
Raid Level : raid5
Raid Devices : 4
Avail Dev Size : 3906767024 (1862.89 GiB 2000.26 GB)
Array Size : 5860148736 (5588.67 GiB 6000.79 GB)
Used Dev Size : 3906765824 (1862.89 GiB 2000.26 GB)
Data Offset : 262144 sectors
Super Offset : 8 sectors
Unused Space : before=262064 sectors, after=1200 sectors
State : clean
Device UUID : 4db2ac90:09cf877c:11544b5b:deb24f24
Internal Bitmap : 8 sectors from superblock
Update Time : Mon Jun 6 09:24:00 2016
Checksum : dd50808b - correct
Events : 40791
Layout : left-symmetric
Chunk Size : 512K
Device Role : Active device 1
Array State : AAA. ('A' == active, '.' == missing, 'R' == replacing)
[root@igmimager dev]# mdadm --examine /dev/sdp
/dev/sdp:
Magic : a92b4efc
Version : 1.2
Feature Map : 0x1
Array UUID : bc69e915:891c1a98:083d6b8d:8d99151f
Name : igmimager.ncl.ac.uk:0 (local to host igmimager.ncl.ac.uk)
Creation Time : Fri Aug 15 10:07:25 2014
Raid Level : raid5
Raid Devices : 4
Avail Dev Size : 3906767024 (1862.89 GiB 2000.26 GB)
Array Size : 5860148736 (5588.67 GiB 6000.79 GB)
Used Dev Size : 3906765824 (1862.89 GiB 2000.26 GB)
Data Offset : 262144 sectors
Super Offset : 8 sectors
Unused Space : before=262064 sectors, after=1200 sectors
State : clean
Device UUID : 7a8f2d04:b51d004e:bcdc3dbf:0ae37b15
Internal Bitmap : 8 sectors from superblock
Update Time : Mon Jun 6 09:24:00 2016
Checksum : 7768653a - correct
Events : 40791
Layout : left-symmetric
Chunk Size : 512K
Device Role : Active device 0
Array State : AAA. ('A' == active, '.' == missing, 'R' == replacing)
[root@igmimager dev]# mdadm --examine /dev/sdq
/dev/sdq:
MBR Magic : aa55
Partition[0] : 1953525167 sectors at 1 (type ee)
[root@igmimager dev]# mdadm --examine /dev/sdr
/dev/sdr:
MBR Magic : aa55
Partition[0] : 1953525167 sectors at 1 (type ee)
[root@igmimager dev]# mdadm --examine /dev/sds
/dev/sds:
MBR Magic : aa55
Partition[0] : 3907029167 sectors at 1 (type ee)
[root@igmimager dev]# mdadm --examine /dev/sdt
/dev/sdt:
MBR Magic : aa55
Partition[0] : 1953525167 sectors at 1 (type ee)
[root@igmimager dev]# mdadm --examine /dev/sdu
/dev/sdu:
MBR Magic : aa55
Partition[0] : 3907029167 sectors at 1 (type ee)
[root@igmimager dev]# mdadm --examine /dev/sdv
/dev/sdv:
MBR Magic : aa55
Partition[0] : 3907029167 sectors at 1 (type ee)
[root@igmimager dev]# mdadm --examine /dev/sdw
/dev/sdw:
MBR Magic : aa55
Partition[0] : 3907029167 sectors at 1 (type ee)
[root@igmimager dev]# mdadm --examine /dev/sdx
/dev/sdx:
MBR Magic : aa55
Partition[0] : 3907029167 sectors at 1 (type ee)
[root@igmimager dev]# mdadm --examine /dev/sdy
/dev/sdy:
MBR Magic : aa55
Partition[0] : 1024000 sectors at 2048 (type 83)
Partition[1] : 487254016 sectors at 1026048 (type 8e)
[root@igmimager dev]# mdadm --examine /dev/sdy1
mdadm: No md superblock detected on /dev/sdy1.
[root@igmimager dev]# mdadm --examine /dev/sdy2
mdadm: No md superblock detected on /dev/sdy2.
[root@igmimager dev]#
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