I have a setup that is currently running under raid1.
I want to stop the raid and use it as normal disks again (especially the
boot device)
Every time I issue "raidstop --all" or "raidstop /dev/md0 /dev/hda1"
it come back saying either "nothing to do!!, or "device or resource busy"
[root@slab root]# raidstop /dev/md0
/dev/md0: Device or resource busy
[root@slab root]# raidstop --all
nothing to do!
usage: raidstop [--all] [--configfile] [--help] [--version] [-achv] </dev/md?>*
How can I turn off this raid and use the disks as per normal again?
Current partiton table:
$ fdisk -l
Disk /dev/hdc: 16 heads, 63 sectors, 38792 cylinders
Units = cylinders of 1008 * 512 bytes
Device Boot Start End Blocks Id System
/dev/hdc1 * 1 31 15592+ fd Linux raid autodetect
/dev/hdc2 32 38792 19535544 5 Extended
/dev/hdc5 32 18317 9216112+ fd Linux raid autodetect
/dev/hdc6 18318 28633 5199232+ fd Linux raid autodetect
/dev/hdc7 28634 34729 3072352+ fd Linux raid autodetect
/dev/hdc8 34730 36761 1024096+ fd Linux raid autodetect
/dev/hdc9 36762 38792 1023592+ 82 Linux swap
Disk /dev/hda: 255 heads, 63 sectors, 2434 cylinders
Units = cylinders of 16065 * 512 bytes
Device Boot Start End Blocks Id System
/dev/hda1 * 1 2 16033+ fd Linux raid autodetect
/dev/hda2 3 2434 19535040 5 Extended
/dev/hda5 3 1150 9221278+ fd Linux raid autodetect
/dev/hda6 1151 1788 5124703+ fd Linux raid autodetect
/dev/hda7 1789 2171 3076416 fd Linux raid autodetect
/dev/hda8 2172 2299 1028128+ fd Linux raid autodetect
/dev/hda9 2300 2434 1084356 83 Linux
The /etc/raidtab file;
$ cat /etc/raidtab
raiddev /dev/md0
raid-level 1
nr-raid-disks 2
chunk-size 64k
persistent-superblock 1
#nr-spare-disks 0
device /dev/hdc1
raid-disk 0
device /dev/hda1
raid-disk 1
raiddev /dev/md1
raid-level 1
nr-raid-disks 2
chunk-size 64k
persistent-superblock 1
#nr-spare-disks 0
device /dev/hdc7
raid-disk 0
device /dev/hda7
raid-disk 1
raiddev /dev/md2
raid-level 1
nr-raid-disks 2
chunk-size 64k
persistent-superblock 1
#nr-spare-disks 0
device /dev/hdc6
raid-disk 0
device /dev/hda6
raid-disk 1
raiddev /dev/md3
raid-level 1
nr-raid-disks 2
chunk-size 64k
persistent-superblock 1
#nr-spare-disks 0
device /dev/hdc5
raid-disk 0
device /dev/hda5
raid-disk 1
raiddev /dev/md4
raid-level 1
nr-raid-disks 2
chunk-size 64k
persistent-superblock 1
#nr-spare-disks 0
device /dev/hdc8
raid-disk 0
device /dev/hda8
raid-disk 1
And the current /etc/fstab file;
$ cat /etc/fstab
/dev/md1 / ext2 defaults 1 1
/dev/md0 /boot ext2 defaults 1 2
/dev/md3 /home ext2 defaults 1 2
/dev/fd0 /mnt/floppy auto noauto,owner 0 0
LABEL=/tmp /tmp ext2 defaults 1 2
/dev/md2 /usr ext2 defaults 1 2
/dev/md4 /var ext2 defaults 1 2
none /proc proc defaults 0 0
none /dev/shm tmpfs defaults 0 0
none /dev/pts devpts gid=5,mode=620 0 0
/dev/hdc9 swap swap defaults 0 0
/dev/cdrom /mnt/cdrom iso9660
noauto,owner,kudzu,ro 0 0
And the ?proc/mdstat file;
[root@slab root]# cat /proc/mdstat
Personalities : [raid1]
read_ahead 1024 sectors
md4 : active raid1 hda8[1] hdc8[0]
1024000 blocks [2/2] [UU]
md1 : active raid1 hda7[1] hdc7[0]
3072256 blocks [2/2] [UU]
md2 : active raid1 hda6[1] hdc6[0]
5124608 blocks [2/2] [UU]
md3 : active raid1 hda5[1] hdc5[0]
9216000 blocks [2/2] [UU]
md0 : active raid1 hda1[1] hdc1[0]
15488 blocks [2/2] [UU]
unused devices: <none>
All the raid docs tell me how to create the arrays, but none tell me how to
remove it.
I did try to alter the partition table, but that failed.
Note: these are all linux raid autodetect partitions, with persistant
superblocks, Even the boot partition... (yes I am booting off raid, which
is what I really want to stop)
Any help appreciated.
Darryl
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