Neil Brown wrote:
On Tuesday June 12, T_Wolf@xxxxxxx wrote:
Hello everyone.
I've got a SLES9 SP3 running and I've been quite happy with it so far.
Recently, I've created a 4 disk spanning RAID-5 on our company
server. Runs quite nice and we're happy with that too. I created
that RAID using the SLES mdadm (1.4 I believe) package.
After discovering that there is a much newer mdadm out here (2.6.1),
I decided to upgrade. It went just fine. Raid still running at 120
MB/sec.
After adding a disk to the raid, which went fine as well...... BUT:
The added disk /dev/sda1 shows up in /proc/mdstat, but does not have
the "spare (s)" flag.
Plus... the --grow doesn't work...
I get the: mdadm: /dev/md0: Cannot get array details from sysfs
error which has been discussed before. Can it be that this is caused
by the 2.6.5-7.2xx Kernel? Any ideas?
Yes. All of your issues are caused by using a 2.6.5 based kernel.
However even upgrading to SLES10 would not get you raid5-grow. That
came a little later. You would need to compile a mainline kernel or
wait for SLES11.
I have to think that if features require a later kernel version that a
warning message would be appropriate. I'm always leary about trying a
new mdadm version with a vendor kernel unless it's a minor bugfix problem.
--
bill davidsen <davidsen@xxxxxxx>
CTO TMR Associates, Inc
Doing interesting things with small computers since 1979
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