After a recent power outage I noticed my raid5 filesystem is missing. Upon boot I noticed a "mdadm failed to add /dev/sd* to /dev/md0: Invalid argument" error. I had a raid5 configuration utilzing 4 1TB drives. Any guidance would be appreciated.
Here are my outputs:
Code
root@falco:~# blkid
/dev/sdc: UUID="d1d88067-1e3d-ec20-2933-c553a9e2a9c9" UUID_SUB="04eb6c15-c297-b926-a05b-bb284e599bf8" LABEL="falco:NAS1" TYPE="linux_raid_member"
/dev/sdb: UUID="d1d88067-1e3d-ec20-2933-c553a9e2a9c9" UUID_SUB="ee5a8d89-7f55-8562-73a1-11fe1c4b2794" LABEL="falco:NAS1" TYPE="linux_raid_member"
/dev/sda: UUID="d1d88067-1e3d-ec20-2933-c553a9e2a9c9" UUID_SUB="556f3075-06b6-571e-46e0-988aa5f550ee" LABEL="falco:NAS1" TYPE="linux_raid_member"
/dev/sdd: UUID="d1d88067-1e3d-ec20-2933-c553a9e2a9c9" UUID_SUB="95d90508-886a-acc3-3f97-790059e832f6" LABEL="falco:NAS1" TYPE="linux_raid_member"
/dev/sde1: UUID="5c2ec262-d826-4d30-b71e-0bba99b12cfd" TYPE="ext4" PARTUUID="275cdeef-01"
/dev/sde5: UUID="fde9232e-e4bf-4fd4-ba0b-e2c5451963ad" TYPE="swap" PARTUUID="275cdeef-05"
Code
root@falco:~# fdisk -l | grep "Disk "
Disk /dev/sdc: 931.5 GiB, 1000203804160 bytes, 1953523055 sectors
Disk /dev/sdb: 931.5 GiB, 1000204886016 bytes, 1953525168 sectors
Disk /dev/sda: 931.5 GiB, 1000203804160 bytes, 1953523055 sectors
Disk /dev/sdd: 931.5 GiB, 1000203804160 bytes, 1953523055 sectors
Disk /dev/sde: 7.5 GiB, 8004304896 bytes, 15633408 sectors
Disk identifier: 0x275cdeef
Code
root@falco:~# cat /etc/mdadm/mdadm.conf
# 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/md0 metadata=1.2 name=falco:NAS1 UUID=d1d88067:1e3dec20:2933c553:a9e2a9c9
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