Martchus
/
mdadm
1
0
Fork 0
Code Issues Pull Requests Projects Releases Wiki Activity

FIX: imsm: Rebuild does not start on second failed disk 

Problem:
If we have an array with two failed disks and the array is in degraded
state (now it is possible only for raid10 with 2 degraded mirrors) and
we have two spare devices in the container, recovery process should be
triggered on booth failed disks. It does not.
Recovery is triggered only for first failed disk.
Second failed disk remains unchanged although the spare drive exists
in the container and is ready to recovery.

Root cause:
mdmon does not check if the array is degraded after recovery of first
drive is completed.

Resolution:
Check if current number of disks in the array equals target number of disks.
If not, trigger degradation check and then recovery process.

Signed-off-by: Krzysztof Wojcik <krzysztof.wojcik@intel.com>
Signed-off-by: NeilBrown <neilb@suse.de>
This commit is contained in:
Krzysztof Wojcik 2011-03-23 16:04:20 +01:00 committed by NeilBrown
parent a28232b83f
commit 3a5d04735b
1 changed files with 4 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
monitor.c
View File

@ -219,6 +219,7 @@ static int read_and_act(struct active_array *a)
int deactivate = 0;
struct mdinfo *mdi;
int dirty = 0;
int count = 0;
a->next_state = bad_word;
a->next_action = bad_action;
@ -311,7 +312,10 @@ static int read_and_act(struct active_array *a)
mdi->curr_state);
if (! (mdi->curr_state & DS_INSYNC))
check_degraded = 1;
count++;
}
if (count != a->info.array.raid_disks)
check_degraded = 1;
}
if (!deactivate &&