Hi, I'm hoping you can help me repair this RAID array (md125 below). It
failed after a repeated series of power interruptions. There are 4 x 1TB
drives with 2 RAID 5 arrays spread across them. One array is working
(md126) as are all 4 drives.
The boot drive was on the failed array so the system is running from a
Fedora 33 Live USB. Details of the 3 arrays and 4 drives follow.
[root@localhost-live ~]# mdadm -D /dev/md125
/dev/md125:
Container : /dev/md/imsm0, member 0
Raid Devices : 4
Total Devices : 3
State : active, FAILED, Not Started
Active Devices : 3
Working Devices : 3
Failed Devices : 0
Spare Devices : 0
Consistency Policy : unknown
UUID : 38c20294:230f3d70:a1a5c8bd:8add8ba5
Number Major Minor RaidDevice State
- 0 0 0 removed
- 0 0 1 removed
- 0 0 2 removed
- 0 0 3 removed
- 8 32 0 sync /dev/sdc
- 8 0 1 sync /dev/sda
- 8 48 3 sync /dev/sdd
[root@localhost-live ~]#
[root@localhost-live ~]# mdadm -D /dev/md126
/dev/md126:
Container : /dev/md/imsm0, member 1
Raid Level : raid5
Array Size : 99116032 (94.52 GiB 101.49 GB)
Used Dev Size : 33038976 (31.51 GiB 33.83 GB)
Raid Devices : 4
Total Devices : 4
State : clean, degraded, recovering
Active Devices : 3
Working Devices : 4
Failed Devices : 0
Spare Devices : 1
Layout : left-asymmetric
Chunk Size : 128K
Consistency Policy : resync
Rebuild Status : 35% complete
UUID : 43d19777:6d66ecfa:3113d7a9:4feb07b4
Number Major Minor RaidDevice State
3 8 32 0 active sync /dev/sdc
2 8 0 1 active sync /dev/sda
1 8 16 2 spare rebuilding /dev/sdb
0 8 48 3 active sync /dev/sdd
[root@localhost-live ~]#
[root@localhost-live ~]# mdadm -D /dev/md127
/dev/md127:
Version : imsm
Raid Level : container
Total Devices : 4
Working Devices : 4
UUID : bdb7f495:21b8c189:e4968216:6f2d6c4c
Member Arrays : /dev/md125 /dev/md/md1_0
Number Major Minor RaidDevice
- 8 32 - /dev/sdc
- 8 0 - /dev/sda
- 8 48 - /dev/sdd
- 8 16 - /dev/sdb
[root@localhost-live ~]#
[root@localhost-live ~]# mdadm --examine /dev/sda
/dev/sda:
Magic : Intel Raid ISM Cfg Sig.
Version : 1.3.00
Orig Family : ab386e31
Family : 775b3841
Generation : 00458337
Attributes : All supported
UUID : bdb7f495:21b8c189:e4968216:6f2d6c4c
Checksum : f25e8e6d correct
MPB Sectors : 2
Disks : 5
RAID Devices : 2
Disk01 Serial : WD-WCC3F1681668
State : active
Id : 00000001
Usable Size : 1953518848 (931.51 GiB 1000.20 GB)
[md0]:
UUID : 38c20294:230f3d70:a1a5c8bd:8add8ba5
RAID Level : 5
Members : 4
Slots : [UU_U]
Failed disk : 2
This Slot : 1
Sector Size : 512
Array Size : 5662310400 (2700.00 GiB 2899.10 GB)
Per Dev Size : 1887436800 (900.00 GiB 966.37 GB)
Sector Offset : 0
Num Stripes : 7372800
Chunk Size : 128 KiB
Reserved : 0
Migrate State : idle
Map State : degraded
Dirty State : dirty
RWH Policy : off
[md1]:
UUID : 43d19777:6d66ecfa:3113d7a9:4feb07b4
RAID Level : 5
Members : 4
Slots : [UUUU]
Failed disk : none
This Slot : 1
Sector Size : 512
Array Size : 198232064 (94.52 GiB 101.49 GB)
Per Dev Size : 66077952 (31.51 GiB 33.83 GB)
Sector Offset : 1887440896
Num Stripes : 258117
Chunk Size : 128 KiB
Reserved : 0
Migrate State : idle
Map State : normal
Dirty State : clean
RWH Policy : <unknown:128>
Disk00 Serial : S13PJDWS608386
State : active
Id : 00000003
Usable Size : 1953518848 (931.51 GiB 1000.20 GB)
Disk02 Serial : D-WMC3F2148323:0
State : active
Id : ffffffff
Usable Size : 1953518848 (931.51 GiB 1000.20 GB)
Disk03 Serial : S13PJDWS608384
State : active
Id : 00000004
Usable Size : 1953518848 (931.51 GiB 1000.20 GB)
Disk04 Serial : WD-WMC3F2148323
State : active
Id : 00000002
Usable Size : 1953518848 (931.51 GiB 1000.20 GB)
[root@localhost-live ~]#
[root@localhost-live ~]# mdadm --examine /dev/sdb
/dev/sdb:
Magic : Intel Raid ISM Cfg Sig.
Version : 1.3.00
Orig Family : ab386e31
Family : 775b3841
Generation : 00458337
Attributes : All supported
UUID : bdb7f495:21b8c189:e4968216:6f2d6c4c
Checksum : f25e8e6d correct
MPB Sectors : 2
Disks : 5
RAID Devices : 2
Disk04 Serial : WD-WMC3F2148323
State : active
Id : 00000002
Usable Size : 1953518848 (931.51 GiB 1000.20 GB)
[md0]:
UUID : 38c20294:230f3d70:a1a5c8bd:8add8ba5
RAID Level : 5
Members : 4
Slots : [UU_U]
Failed disk : 2
This Slot : ?
Sector Size : 512
Array Size : 5662310400 (2700.00 GiB 2899.10 GB)
Per Dev Size : 1887436800 (900.00 GiB 966.37 GB)
Sector Offset : 0
Num Stripes : 7372800
Chunk Size : 128 KiB
Reserved : 0
Migrate State : idle
Map State : degraded
Dirty State : dirty
RWH Policy : off
[md1]:
UUID : 43d19777:6d66ecfa:3113d7a9:4feb07b4
RAID Level : 5
Members : 4
Slots : [UUUU]
Failed disk : none
This Slot : 2
Sector Size : 512
Array Size : 198232064 (94.52 GiB 101.49 GB)
Per Dev Size : 66077952 (31.51 GiB 33.83 GB)
Sector Offset : 1887440896
Num Stripes : 258117
Chunk Size : 128 KiB
Reserved : 0
Migrate State : idle
Map State : normal
Dirty State : clean
RWH Policy : <unknown:128>
Disk00 Serial : S13PJDWS608386
State : active
Id : 00000003
Usable Size : 1953518848 (931.51 GiB 1000.20 GB)
Disk01 Serial : WD-WCC3F1681668
State : active
Id : 00000001
Usable Size : 1953518848 (931.51 GiB 1000.20 GB)
Disk02 Serial : D-WMC3F2148323:0
State : active
Id : ffffffff
Usable Size : 1953518848 (931.51 GiB 1000.20 GB)
Disk03 Serial : S13PJDWS608384
State : active
Id : 00000004
Usable Size : 1953518848 (931.51 GiB 1000.20 GB)
[root@localhost-live ~]#
[root@localhost-live ~]# mdadm --examine /dev/sdc
/dev/sdc:
Magic : Intel Raid ISM Cfg Sig.
Version : 1.3.00
Orig Family : ab386e31
Family : 775b3841
Generation : 00458337
Attributes : All supported
UUID : bdb7f495:21b8c189:e4968216:6f2d6c4c
Checksum : f25e8e6d correct
MPB Sectors : 2
Disks : 5
RAID Devices : 2
Disk00 Serial : S13PJDWS608386
State : active
Id : 00000003
Usable Size : 1953518848 (931.51 GiB 1000.20 GB)
[md0]:
UUID : 38c20294:230f3d70:a1a5c8bd:8add8ba5
RAID Level : 5
Members : 4
Slots : [UU_U]
Failed disk : 2
This Slot : 0
Sector Size : 512
Array Size : 5662310400 (2700.00 GiB 2899.10 GB)
Per Dev Size : 1887436800 (900.00 GiB 966.37 GB)
Sector Offset : 0
Num Stripes : 7372800
Chunk Size : 128 KiB
Reserved : 0
Migrate State : idle
Map State : degraded
Dirty State : dirty
RWH Policy : off
[md1]:
UUID : 43d19777:6d66ecfa:3113d7a9:4feb07b4
RAID Level : 5
Members : 4
Slots : [UUUU]
Failed disk : none
This Slot : 0
Sector Size : 512
Array Size : 198232064 (94.52 GiB 101.49 GB)
Per Dev Size : 66077952 (31.51 GiB 33.83 GB)
Sector Offset : 1887440896
Num Stripes : 258117
Chunk Size : 128 KiB
Reserved : 0
Migrate State : idle
Map State : normal
Dirty State : clean
RWH Policy : <unknown:128>
Disk01 Serial : WD-WCC3F1681668
State : active
Id : 00000001
Usable Size : 1953518848 (931.51 GiB 1000.20 GB)
Disk02 Serial : D-WMC3F2148323:0
State : active
Id : ffffffff
Usable Size : 1953518848 (931.51 GiB 1000.20 GB)
Disk03 Serial : S13PJDWS608384
State : active
Id : 00000004
Usable Size : 1953518848 (931.51 GiB 1000.20 GB)
Disk04 Serial : WD-WMC3F2148323
State : active
Id : 00000002
Usable Size : 1953518848 (931.51 GiB 1000.20 GB)
[root@localhost-live ~]#
[root@localhost-live ~]# mdadm --examine /dev/sdd
/dev/sdd:
Magic : Intel Raid ISM Cfg Sig.
Version : 1.3.00
Orig Family : ab386e31
Family : 775b3841
Generation : 00458337
Attributes : All supported
UUID : bdb7f495:21b8c189:e4968216:6f2d6c4c
Checksum : f25e8e6d correct
MPB Sectors : 2
Disks : 5
RAID Devices : 2
Disk03 Serial : S13PJDWS608384
State : active
Id : 00000004
Usable Size : 1953518848 (931.51 GiB 1000.20 GB)
[md0]:
UUID : 38c20294:230f3d70:a1a5c8bd:8add8ba5
RAID Level : 5
Members : 4
Slots : [UU_U]
Failed disk : 2
This Slot : 3
Sector Size : 512
Array Size : 5662310400 (2700.00 GiB 2899.10 GB)
Per Dev Size : 1887436800 (900.00 GiB 966.37 GB)
Sector Offset : 0
Num Stripes : 7372800
Chunk Size : 128 KiB
Reserved : 0
Migrate State : idle
Map State : degraded
Dirty State : dirty
RWH Policy : off
[md1]:
UUID : 43d19777:6d66ecfa:3113d7a9:4feb07b4
RAID Level : 5
Members : 4
Slots : [UUUU]
Failed disk : none
This Slot : 3
Sector Size : 512
Array Size : 198232064 (94.52 GiB 101.49 GB)
Per Dev Size : 66077952 (31.51 GiB 33.83 GB)
Sector Offset : 1887440896
Num Stripes : 258117
Chunk Size : 128 KiB
Reserved : 0
Migrate State : idle
Map State : normal
Dirty State : clean
RWH Policy : <unknown:128>
Disk00 Serial : S13PJDWS608386
State : active
Id : 00000003
Usable Size : 1953518848 (931.51 GiB 1000.20 GB)
Disk01 Serial : WD-WCC3F1681668
State : active
Id : 00000001
Usable Size : 1953518848 (931.51 GiB 1000.20 GB)
Disk02 Serial : D-WMC3F2148323:0
State : active
Id : ffffffff
Usable Size : 1953518848 (931.51 GiB 1000.20 GB)
Disk04 Serial : WD-WMC3F2148323
State : active
Id : 00000002
Usable Size : 1953518848 (931.51 GiB 1000.20 GB)
[root@localhost-live ~]#
Thanks
ps. Why was my Outlook.com email address rejected by this server?
