I have a Mandrake 10 server with a 40gb boot drive and a three 200gb disk
software raid 5 array using reiserfs. A disk went bad; so i have replaced
it.
Doing the normal things to get it back up don't work:
[root@server root]#raidhotadd /dev/md0 /dev/hdg
/dev/md0: can not hot-add disk: array not running!
[root@server root]# raidstart -a
/dev/md0: Invalid argument
I think the superblock on the virtual disk is corrupt. Can anyone help?
This is a production server and the backup was a removable drive that
failed last week.
Thanks
# cat /etc/fstab
/dev/hde1 / reiserfs notail 1 1
none /dev/pts devpts mode=0620 0 0
# /dev/md0 /files reiserfs notail 1 2
/dev/hda /mnt/cdrom auto
umask=0,user,iocharset=iso8859-1,codepage=850,noauto,ro,exec 0 0
none /mnt/floppy supermount
dev=/dev/fd0,fs=ext2:vfat,--,umask=0,iocharset=iso8859-1,sync,codepage=850
0 0
none /proc proc defaults 0 0
/dev/hde5 swap swap defaults 0 0
# cat /etc/raidtab
raiddev /dev/md0
raid-level 5
chunk-size 128k
persistent-superblock 1
nr-raid-disks 3
device /dev/hdg1
raid-disk 0
device /dev/hdi1
raid-disk 1
device /dev/hdk1
raid-disk 2
dmesg:
md: invalid raid superblock magic on hdg1
md: hdg1 has invalid sb, not importing!
md: could not import hdg1!
md: autostart unknown-block(0,8705) failed!
cat /proc/modules
raid5 20512 0 - Live 0xd0a5e000
# cat /proc/mdstat
Personalities : [raid5]
md0 : inactive hdi1[1] hdk1[2]
390716672 blocks
unused devices: <none>
# mdadm --examine /dev/md0
mdadm: /dev/md0 is too small for md
# raidhotremove /dev/md0 /dev/hdg1
/dev/md0: can not hot-remove disk: array not running!
# uname -a
2.6.3-7mdk
Scott Bolander
Computer Services of Cincinnati
http://www.cincysystems.com
scott@xxxxxxxxxxxxxxxx
513-266-6656
"I said, 'government is powerless to protect you,' not powerless to punish
you." --Chief Wiggum, The Simpsons
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