Howdy folks,
I got some errors about 'writing beyond the end of a device' so I
decided to reboot the machine cleanly.
It came back up, and all data is still there and good, but my
/proc/mdstat looks like this:
[root@korak /root]# cat < /proc/mdstat
Personalities : [linear] [raid1]
read_ahead 1024 sectors
md2 : active raid1 sda4[0] 2602432 blocks [2/1] [U_]
md1 : active raid1 sdb3[1] sda3[0] 4096448 blocks [2/2] [UU]
md0 : active raid1 sdb2[1] sda2[0] 2048192 blocks [2/2] [UU]
unused devices: <none>
It looks to me like the [2/1] means only one of my two 'low level'
partitions below /dev/md2 is working. I don't know what the [U_] means,
and I've been searching for docs on this file for hours. No dice. Can
someone explain it?
At boot time, I have the following error messages in /var/log/messages:
kernel: raid1: md2, not all disks are operational -- trying to recover
array
kernel: raid1: raid set md2 active with 1 out of 2 mirrors
kernel: md: updating md2 RAID superblock on device
kernel: sda4 [events: 0000001a](write) sda4's sb offset: 2602432
kernel: md: recovery thread got woken up ...
kernel: md2: no spare disk to reconstruct array! -- continuing in
degraded mode
Degraded mode! I feel so dirty.
RHL 6.0, 2.2.10 kernel w/ raid patch
-Michel
