Hy everyone!
Last night I shut down my computer and after powering it on again my RAID 5 array disappeared, a RAID 0 array was there instead with 2 drives (sda, sdb, sdc was missing)!
I tried to stoping the new RAID0 array and recreate the RAID5 array with no luck. sdc has no superblock error, after that tried reassembling with teh other two drives sda, sdb.
sda looked fine but on sdb it said partition will be erased if I continue, so I stopped.
I'm using 3 WD Blue 1GB drives (2x WD10JPVX, 1xWD10JPVT).
Zitatmdadm -A /dev/md127 /dev/sda /dev/sdb /dev/sdc
mdadm: Cannot read superblock on /dev/sdc
mdadm: no RAID superblock on /dev/sdc
mdadm: /dev/sdc has no superblock - assembly aborted
ZitatAlles anzeigenmdadm --create --level=5 --layout=ls --chunk=512 --raid-devices=3 /dev/md127 /dev/sda /dev/sdb /dev/sdc
mdadm: /dev/sda appears to be part of a raid array:
level=raid5 devices=3 ctime=Fri Jul 19 15:55:43 2013
mdadm: partition table exists on /dev/sda but will be lost or
meaningless after creating array
mdadm: /dev/sdb appears to be part of a raid array:
level=raid5 devices=3 ctime=Fri Jul 19 15:55:43 2013
Continue creating array?
/dev/sdc is missing, but why?
Here are some information.
Zitatcat /proc/mdstat
Personalities : [linear] [multipath] [raid0] [raid1] [raid6] [raid5] [raid4] [raid10]
md127 : inactive sdb[3](S) sda[4](S)
1953523120 blocks super 1.2
unused devices: <none>
ZitatAlles anzeigenblkid
/dev/sdd1: UUID="8A9C-20FD" TYPE="vfat" PARTUUID="e99306c3-811f-4cb7-9342-e5d08cfae0fd"
/dev/sdd2: UUID="22c5a0cf-3c6b-4b2e-b5b5-4c2081772ada" TYPE="ext4" PARTUUID="299559f7-ac8f-4a01-a3d6-17f9c89937b8"
/dev/sdd3: UUID="e6b3f336-fb85-4116-989a-7c10d4d85f04" TYPE="swap" PARTUUID="7b26ca28-7fae-4c21-b65b-4b130deb2765"
/dev/sdb: UUID="6d519931-e4e1-5e4a-9749-225172262763" UUID_SUB="6546250e-b620-0edd-2309-edb68ae68d15" LABEL="openmediavault:NAS" TYPE="linux_raid_member"
/dev/sda: UUID="6d519931-e4e1-5e4a-9749-225172262763" UUID_SUB="b033aeca-01f9-abee-5c3d-1a181369ff61" LABEL="openmediavault:NAS" TYPE="linux_raid_member"
/dev/sdc is missing, but in the OMV create array webpage I can select it but only this drive even if I stop the RAID 0 array!
ZitatAlles anzeigenfdisk -l | grep "Disk "
Disk /dev/sdd: 29,8 GiB, 32017047552 bytes, 62533296 sectors
Disk model: ADATA SP800
Disk identifier: 13E05B71-7A32-4CB4-9C17-0AB0414C7C64
Disk /dev/sdc: 931,5 GiB, 1000204886016 bytes, 1953525168 sectors
Disk model: WDC WD10JPVT-08A
Disk /dev/sdb: 931,5 GiB, 1000204886016 bytes, 1953525168 sectors
Disk model: WDC WD10JPVX-22J
Disk /dev/sda: 931,5 GiB, 1000204886016 bytes, 1953525168 sectors
Disk model: WDC WD10JPVX-22J
Disk identifier: 0xc09904f0
ZitatAlles anzeigencat /etc/mdadm/mdadm.conf
# This file is auto-generated by openmediavault (https://www.openmediavault.org)
# WARNING: Do not edit this file, your changes will get lost.
# mdadm.conf
#
# Please refer to mdadm.conf(5) for information about this file.
#
# by default, scan all partitions (/proc/partitions) for MD superblocks.
# alternatively, specify devices to scan, using wildcards if desired.
# Note, if no DEVICE line is present, then "DEVICE partitions" is assumed.
# To avoid the auto-assembly of RAID devices a pattern that CAN'T match is
# used if no RAID devices are configured.
DEVICE partitions
# auto-create devices with Debian standard permissions
CREATE owner=root group=disk mode=0660 auto=yes
# automatically tag new arrays as belonging to the local system
HOMEHOST <system>
# definitions of existing MD arrays
ARRAY /dev/md/NAS metadata=1.2 name=openmediavault:NAS UUID=6d519931:e4e15e4a:97492251:72262763
Zitatmdadm --detail --scan --verbose
INACTIVE-ARRAY /dev/md127 num-devices=2 metadata=1.2 name=openmediavault:NAS UUID=6d519931:e4e15e4a:97492251:72262763
devices=/dev/sda,/dev/sdb
ZitatAlles anzeigen/sbin/mdadm --examine /dev/sd[cba]
/dev/sda:
Magic : a92b4efc
Version : 1.2
Feature Map : 0x0
Array UUID : 6d519931:e4e15e4a:97492251:72262763
Name : openmediavault:NAS
Creation Time : Fri Jul 19 15:55:43 2013
Raid Level : raid5
Raid Devices : 3
Avail Dev Size : 1953523120 (931.51 GiB 1000.20 GB)
Array Size : 1953522688 (1863.02 GiB 2000.41 GB)
Used Dev Size : 1953522688 (931.51 GiB 1000.20 GB)
Data Offset : 2048 sectors
Super Offset : 8 sectors
Unused Space : before=1968 sectors, after=432 sectors
State : clean
Device UUID : b033aeca:01f9abee:5c3d1a18:1369ff61
Update Time : Wed Dec 6 20:57:14 2023
Checksum : 4885d296 - correct
Events : 2672
Layout : left-symmetric
Chunk Size : 512K
Device Role : Active device 0
Array State : AAA ('A' == active, '.' == missing, 'R' == replacing)
/dev/sdb:
Magic : a92b4efc
Version : 1.2
Feature Map : 0x0
Array UUID : 6d519931:e4e15e4a:97492251:72262763
Name : openmediavault:NAS
Creation Time : Fri Jul 19 15:55:43 2013
Raid Level : raid5
Raid Devices : 3
Avail Dev Size : 1953523120 (931.51 GiB 1000.20 GB)
Array Size : 1953522688 (1863.02 GiB 2000.41 GB)
Used Dev Size : 1953522688 (931.51 GiB 1000.20 GB)
Data Offset : 2048 sectors
Super Offset : 8 sectors
Unused Space : before=1968 sectors, after=432 sectors
State : clean
Device UUID : 6546250e:b6200edd:2309edb6:8ae68d15
Update Time : Wed Dec 6 20:57:14 2023
Checksum : ccc0563c - correct
Events : 2672
Layout : left-symmetric
Chunk Size : 512K
Device Role : Active device 2
Array State : AAA ('A' == active, '.' == missing, 'R' == replacing)
mdadm: No md superblock detected on /dev/sdc.
Can someone help me, I can't do much more on myself.
I1m afraid the array is dead, yesterday it was working perfectly.