Hi,
I had a disk failure and replaced it with an equivalent disk, partition,
etc.
It seems to add correctly to the existing array when using mdadm
/dev/md0 --add /dev/sdd1 after re-syncing, but when I restart the array
(or reboot) it never accepts it, reporting the message below. It thinks
the 4th partition is <sdd> instead of sdd1.
Turns out that /dev/sdd1 does not exist, but fdisk -l reports that it is
there (also below).
Try to start the array with just sdd does not work either:
altair:~$ sudo mdadm --assemble /dev/md0 /dev/sda1 /dev/sdb1 /dev/sdc1
/dev/sdd
mdadm: /dev/md0 has been started with 3 drives (out of 4).
altair:~$ sudo mdadm --stop /dev/md0
Does anyone have instructions on what to try? Why is /dev/sdd1 not
visible?
Thanks,
Chris
[ 580.723453] md: bind<sdb1>
[ 580.723710] md: bind<sdc1>
[ 580.723875] md: bind<sdd>
[ 580.724051] md: bind<sda1>
[ 580.724152] md: kicking non-fresh sdd from array!
[ 580.724274] md: unbind<sdd>
[ 580.724355] md: export_rdev(sdd)
[ 580.756272] raid5: device sda1 operational as raid disk 0
[ 580.756277] raid5: device sdc1 operational as raid disk 2
[ 580.756279] raid5: device sdb1 operational as raid disk 1
[ 580.757005] raid5: allocated 4274kB for md0
[ 580.757009] raid5: raid level 5 set md0 active with 3 out of 4
devices, algorithm 2
[ 580.757012] RAID5 conf printout:
[ 580.757013] --- rd:4 wd:3
[ 580.757015] disk 0, o:1, dev:sda1
[ 580.757016] disk 1, o:1, dev:sdb1
[ 580.757018] disk 2, o:1, dev:sdc1
------------------------------------------------------------------------------------
Disk /dev/sda: 500.1 GB, 500107862016 bytes
255 heads, 63 sectors/track, 60801 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Disk identifier: 0x0009f318
Device Boot Start End Blocks Id System
/dev/sda1 1 60801 488384001 fd Linux raid
autodetect
Disk /dev/sdb: 500.1 GB, 500107862016 bytes
255 heads, 63 sectors/track, 60801 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Disk identifier: 0x000a56ab
Device Boot Start End Blocks Id System
/dev/sdb1 1 60801 488384001 fd Linux raid
autodetect
Disk /dev/sdc: 500.1 GB, 500107862016 bytes
255 heads, 63 sectors/track, 60801 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Disk identifier: 0x000acab6
Device Boot Start End Blocks Id System
/dev/sdc1 1 60801 488384001 fd Linux raid
autodetect
Disk /dev/sdd: 500.1 GB, 500107862016 bytes
255 heads, 63 sectors/track, 60801 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Disk identifier: 0xbc28bcf8
Device Boot Start End Blocks Id System
/dev/sdd1 1 60801 488384001 fd Linux raid
autodetect
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