A friend and I (both of us are fairly proficient w/ Linux but still very new to
RAID) are trying to set up a fairly vanilla system. We are attempting to setup
a full root-raid for a computational server.
As Murphy's law predicts, server 1 went smooth as silk. Now that I've traveled
almost 500 miles back home, server2 is giving the following error when we try to
mkraid on the root partition (the last remaining partition standing between us
and a suscessful build):
--------
DESTROYING the contents of /dev/md1 in 5 seconds, Ctrl-C if unsure!
/dev/md1: active -- run raidstop
mkraid: aborted, see the syslog and /proc/mdstat for potential clues.
--------
raidstop /dev/md1 returns no such device.
I'm sure there is something simple we are missing. The system is a dual PII-450
w/ a pair of IDE disks on seperate controllers.
O/S: RH6.0 w/ -- 2.2.12 kernel and appropriate 2.2.11 patches and raidtools.
Any advice is greatly appreciated. I've attached some of what I think are the
pertenent files below... If anything else would be helpful... please ask..
Thanks in advance...
MATT
Following is the contents of /proc/mdstat:
Personalities : [raid0] [raid1] [raid5]
read_ahead 1024 sectors
md5 : active raid0 hdc5[0] hda5[1] 6144512 blocks 4k chunks
md6 : active raid1 hdc6[0] hda6[1] 2560192 blocks [2/2] [UU]
md7 : active raid1 hdc7[0] hda7[1] 2048128 blocks [2/2] [UU]
md8 : active raid1 hdc8[0] hda8[1] 1350592 blocks [2/2] [UU]
md9 : active raid1 hdc9[0] hda9[1] 511936 blocks [2/2] [UU]
md10 : active raid1 hdc10[0] hda10[1] 102720 blocks [2/2] [UU]
md11 : active raid1 hdc11[0] hda11[1] 102720 blocks [2/2] [UU]
unused devices: <none>
The contents of /etc/raidtab:
# this is /scr
raiddev /dev/md5
raid-level 0
nr-raid-disks 2
persistent-superblock 1
chunk-size 4
device /dev/hdc5
raid-disk 0
device /dev/hda5
raid-disk 1
# This is /home
raiddev /dev/md6
raid-level 1
nr-raid-disks 2
nr-spare-disks 0
persistent-superblock 1
chunk-size 4
device /dev/hdc6
raid-disk 0
device /dev/hda6
failed-disk 1
# This is /usr
raiddev /dev/md7
raid-level 1
nr-raid-disks 2
nr-spare-disks 0
persistent-superblock 1
chunk-size 4
device /dev/hdc7
raid-disk 0
device /dev/hda7
failed-disk 1
# This is /tmp
raiddev /dev/md10
raid-level 1
nr-raid-disks 2
nr-spare-disks 0
persistent-superblock 1
chunk-size 4
device /dev/hdc10
raid-disk 0
device /dev/hda10
failed-disk 1
# This is /var
raiddev /dev/md11
raid-level 1
nr-raid-disks 2
nr-spare-disks 0
persistent-superblock 1
chunk-size 4
device /dev/hdc11
raid-disk 0
device /dev/hda11
failed-disk 1
# This is swap
raiddev /dev/md9
raid-level 1
nr-raid-disks 2
nr-spare-disks 0
persistent-superblock 1
chunk-size 4
device /dev/hdc9
raid-disk 0
device /dev/hda9
failed-disk 1
# This is /
raiddev /dev/md1
raid-level 1
nr-raid-disks 2
nr-spare-disks 0
persistent-superblock 1
chunk-size 4
device /dev/hdc1
raid-disk 0
device /dev/hda1
failed-disk 1
# This is /prog
raiddev /dev/md8
raid-level 1
nr-raid-disks 2
nr-spare-disks 0
persistent-superblock 1
chunk-size 4
device /dev/hdc8
raid-disk 0
device /dev/hda8
failed-disk 1
And fdisk -l on both disks:
Disk /dev/hda: 16 heads, 63 sectors, 19650 cylinders
Units = cylinders of 1008 * 512 bytes
Device Boot Start End Blocks Id System
/dev/hda1 * 1 305 153688+ 83 Linux
/dev/hda2 306 19650 9749880 5 Extended
/dev/hda5 306 6401 3072352+ fd Unknown
/dev/hda6 6402 11481 2560288+ fd Unknown
/dev/hda7 11482 15545 2048224+ fd Unknown
/dev/hda8 15546 18225 1350688+ fd Unknown
/dev/hda9 18226 19241 512032+ fd Unknown
/dev/hda10 19242 19445 102784+ fd Unknown
/dev/hda11 19446 19649 102784+ fd Unknown
Disk /dev/hdc: 16 heads, 63 sectors, 19650 cylinders
Units = cylinders of 1008 * 512 bytes
Device Boot Start End Blocks Id System
/dev/hdc1 1 305 153688+ 83 Linux
/dev/hdc2 306 19650 9749880 5 Extended
/dev/hdc5 306 6401 3072352+ fd Unknown
/dev/hdc6 6402 11481 2560288+ fd Unknown
/dev/hdc7 11482 15545 2048224+ fd Unknown
/dev/hdc8 15546 18225 1350688+ fd Unknown
/dev/hdc9 18226 19241 512032+ fd Unknown
/dev/hdc10 19242 19445 102784+ fd Unknown
/dev/hdc11 19446 19649 102784+ fd Unknown
