Hi,
Can anyone help me to understand the global sharing with the below
context?
I have two degraded RAID1s say md0 and md1 with one disk active on each.
Both the arrays were originally built with 2 disks.
I am enabling global sharing.
When I add a disk to md0, it gets rebuilt.
When I add one more disk to md0, it gets added as a spare.
The md1, which is also degraded, is not able to grab the global spare
from md0 which is sitting idle until md0 finishes rebuilding.
Is this by policy/concept of global sharing that the spare is shared
after rebuilding?
Also I am trying to change mdadm-2.6.4 to make it shared immediately as
follows.
--- mdadm-2.6.4/Monitor.c.orig 2010-02-03 16:58:50.000000000 +0530
+++ mdadm-2.6.4/Monitor.c 2010-02-03 16:59:47.000000000 +0530
@@ -469,7 +469,7 @@
for (st2=statelist ; st2 ;
st2=st2->next)
if (st2 != st &&
st2->spare > 0 &&
- st2->active == st2->raid &&
+ st2->working >= st2->raid &&
st2->spare_group != NULL &&
strcmp(st->spare_group,
st2->spare_group) == 0) {
/* try to remove and add
*/
Is this change valid and complete?
Thanks,
Senthil M
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