I am converting a Sparc-station 20 to linux, specifically RedHat 6.2. I
have been having lots of problems with getting my RAID array to work. I
have experience with RAID-0 and RAID-1 working fine on Intel processors.
This is my first attempt at using Linux (and RAID) on a Sparc. I have
tried many different setups to get the RAID to work. Some of them worked
occasionally. All of them were either intermittant or failed to work at
all.
The three main ways I have tried to make RAID to work are:
* automatic raid, setting partition types to: fd
When I used this method, the machine will not boot reliably. The
errors varied. Sometimes other (non-raid) file systems would not mount,
sometimes certain modules would not be loaded or found.
* raid startup with RedHat code in rc.sysinit. (partitions set to 83)
When using this technique, the boot process would usually stop, dropping
me into the maintance mode.
* raid startup with a manual command. (partitions set to 83, rc.sysinit
code modified to prevent it from starting raid) Raid startup up usually
fails with messages I amd not used to. For example:
command: mkraid /dev/md0
response: Killed
after which: cat /proc/mdstat
response: Killed
Here are some details about my setup that may help...............
df
Filesystem 1k-blocks Used Available Use% Mounted on
/dev/sda4 1237672 188340 986460 16% /
/dev/sda1 15858 7142 7888 48% /boot
/dev/sda2 720784 3856 680316 1% /var
cat /etc/raidtab
raiddev /dev/md0
raid-level 0
nr-raid-disks 10
persistent-superblock 1
chunk-size 4
device /dev/sdb1
raid-disk 0
device /dev/sdc1
raid-disk 1
device /dev/sdd1
raid-disk 2
device /dev/sde1
raid-disk 3
device /dev/sdf1
raid-disk 4
device /dev/sdg1
raid-disk 5
device /dev/sdh1
raid-disk 6
device /dev/sdi1
raid-disk 7
device /dev/sdj1
raid-disk 8
device /dev/sdk1
raid-disk 9
free
total used free shared buffers cached
Mem: 256560 22084 234476 10516 2828 11664
-/+ buffers/cache: 7592 248968
Swap: 91216 0 91216
cat /proc/cpuinfo
cpu: ROSS HyperSparc RT625 or RT626
fpu: ROSS HyperSparc combined IU/FPU
promlib: Version 3 Revision 2
prom: 2.22
type: sun4m
ncpus probed: 4
ncpus active: 4
Cpu0Bogo: 125.33
Cpu1Bogo: 125.33
Cpu2Bogo: 125.33
Cpu3Bogo: 125.33
MMU type: ROSS HyperSparc
invall: 0
invmm: 0
invrnge : 0
invpg : 0
contexts : 4096
CPU0 : online
CPU1 : online
CPU2 : online
CPU3 : online
typical fdisk partition setup:
Disk /dev/sdc (Sun disk label): 67 heads, 62 sectors, 1007 cylinders
Units = cylinders of 4154 * 512 bytes
Device Flag Start End Blocks Id System
/dev/sdc1 1 1007 2089462 83 Linux native
/dev/sdc3 0 1007 2091539 5 Whole disk
Any assistance would be greatly appreciated, I have been banging my head
over this for about 10 days now...:(
Best Regards,
Robert Laughlin
