On Sun, 8 Jan 2012 11:06:59 +0200 Alexander Lyakas <alex.bolshoy@xxxxxxxxx>
wrote:
> Hi,
> well, at least according to 2.6.38-8 kernel code, this attribute is
> notified in 3 cases:
> # When the array is started (e.g., via RUN_ARRAY ioctl)
> # When "reshape" is initiated via sysfs
> # When a spare is activated after successful completion of
> resync/recover/check/replair
>
Hmm... it really should notify when a disk fails.
Mikhail: could you please test if this patch makes it work better for you?
Thanks,
NeilBrown
diff --git a/drivers/md/md.c b/drivers/md/md.c
index 1c1c562..33aa06f 100644
--- a/drivers/md/md.c
+++ b/drivers/md/md.c
@@ -7383,6 +7383,7 @@ static int remove_and_add_spares(struct mddev *mddev)
{
struct md_rdev *rdev;
int spares = 0;
+ int removed = 0;
mddev->curr_resync_completed = 0;
@@ -7396,8 +7397,13 @@ static int remove_and_add_spares(struct mddev *mddev)
mddev, rdev) == 0) {
sysfs_unlink_rdev(mddev, rdev);
rdev->raid_disk = -1;
+ removed++;
}
}
+ if (removed)
+ sysfs_notify(&mddev->kobj, NULL,
+ "degraded");
+
list_for_each_entry(rdev, &mddev->disks, same_set) {
if (rdev->raid_disk >= 0 &&
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