Hi all,
I'm running a Debian system with linux kernel 2.6.8-rc2-mm2, which is
pretty bleeding edge. I've been playing around getting a
USB2.0/IEEE1394 enclosure working with a 120gb drive. This matches
the pair of 120gb drives I'm using to hold my /home and /local
volumes. They're /dev/hde and /dev/hdg respectively.
The system is setup so that both drives have a single partition which
is an LVM type. So both disks are completely mirrored to each other.
On top of that, I have several LVM volumes.
While mucking around on the system this morning, I noticed that one of
the disks on the array was gone. I've been trying to get it back and
it's not working at all. I've rebooted multiple times, re-partitioned
the bad disk, etc. Nothing. Here's some info:
# cat /proc/mdstat
Personalities : [linear] [raid0] [raid1] [raid5]
md0 : active raid1 hde1[0]
117218176 blocks [2/1] [U_]
unused devices: <none>
# mdadm /dev/md0 -a /dev/hdg1
mdadm: hot add failed for /dev/hdg1: Invalid argument
And in /var/log/messages, I see the following two lines:
Aug 4 10:54:02 jfsnew kernel: md: trying to hot-add unknown-block(34,1) to md0 ...
Aug 4 10:54:02 jfsnew kernel: md: error, md_import_device() returned -16
The entries in /dev/hd* look like this:
# ls -l /dev/hd*
brw-rw---- 1 root cdrom 3, 0 Aug 4 10:52 /dev/hda
brw-rw---- 1 root disk 33, 0 Aug 4 10:52 /dev/hde
brw-rw---- 1 root disk 33, 1 Aug 4 10:52 /dev/hde1
brw-rw---- 1 root disk 34, 0 Aug 4 10:52 /dev/hdg
brw-rw---- 1 root disk 34, 1 Aug 4 10:52 /dev/hdg1
Here's a list of partitions on the system as well:
# cat /proc/partitions
major minor #blocks name
33 0 117220824 hde
33 1 117218241 hde1
34 0 117220824 hdg
34 1 117218241 hdg1
8 0 17783000 sda
8 1 248976 sda1
8 2 4000185 sda2
8 3 996030 sda3
8 4 1 sda4
8 5 4000153 sda5
8 6 8000338 sda6
8 16 17782540 sdb
8 17 248976 sdb1
8 18 996030 sdb2
8 19 16530885 sdb3
9 0 117218176 md0
8 32 117220824 sdc
8 33 58593496 sdc1
8 34 48828024 sdc2
253 0 53477376 dm-0
253 1 36700160 dm-1
253 2 117218241 dm-2
253 3 248976 dm-3
253 4 996030 dm-4
253 5 16530885 dm-5
253 6 58593496 dm-6
253 7 48828024 dm-7
Anyone have any ideas what I'm doing wrong here?
Thanks,
John
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