Hello All
I'm having some strange problems creating raid arrays on my RedHat 7.2
machine. When I run mkraid to try and create a RAID-1 or RAID-5 device,
the the disks grind for about 2 seconds and then the mkraid process goes
into a D state and /proc/mdstat always looks something like this (with
and incrementing finish time).
[root@feedback root]# cat /proc/mdstat
Personalities : [raid5]
read_ahead not set
md0 : active raid5 hdg1[2] hdf1[1] hde1[0]
156301184 blocks level 5, 4k chunk, algorithm 2 [3/3] [UUU]
[>....................] resync = 0.0% (128/78150592)
finish=303612.3min speed=0K/sec
unused devices: <none>
Here's the ps aux output
root 908 0.0 0.4 1432 524 tty1 D 10:01 0:00 mkraid
--really-force /dev/md0
root 910 0.0 0.0 0 0 ? SW< 10:01 0:00 [raid5d]
root 911 0.0 0.0 0 0 ? DWN 10:01 0:00
[raid5syncd]
The only way (that I've found) to recover is to do a cold boot. It
doesn't appear that the process is oopsing, it looks like it's waiting
for something to happen. Occasionally, I can perform a reboot -fn and
it will reboot.
I've tried the process with 2.4.9 and 2.4.18 RedHat kernels as well as
2.4.19-pre10. The machine is currently sitting with mkraid in a D
state, so if there is anything that I can do to get more valuable
information for you let me know. One note, is that the creation of a
RAID-0 device worked fined. I'm totally stumped on this. Below are my
/etc/raidtab and the system specs.
Thanks,
Scott
/etc/raidtab
raiddev /dev/md0
raid-level 5
nr-raid-disks 3
nr-spare-disks 0
persistent-superblock 1
parity-algorithm left-symmetric
chunk-size 4
device /dev/hde1
raid-disk 0
device /dev/hdf1
raid-disk 1
device /dev/hdg1
raid-disk 2
Here are the specs:
Kernel 2.4.19-pre10
modutils 2.4.14-3
raidtools 1.00.2-1.3
glibc 2.2.4-19-3
kernel-utils 2.4-7.4
Dual Proc Celeron MB (one 500 Mhz Processor installed)
128 MB RAM
2 Onboard PIIX4 IDE Controllers
2 Onboard HPT366 Controllers
0S Drives
/dev/hda WDC AC22100H 2GB Drive
/dev/hdc WDC AC38400L 8GB Drive
Candidate RAID drives:
/dev/hde WDC WD800AB-60CBA0 80 GB Drive
/dev/hdf WDC WD800AB-00CBA0 80 GB Drive
/dev/hdg WDC WD800AB-00CBA0 80 GB Drive
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