There doesn't seem to be any designated place to send bug reports and
feature requests to mdadm, so I hope I am doing the right thing by
sending it here.
I have a small patch to mdamd which allows the write-behind amount to be
set a array grow time (instead of currently only at grow or create
time). I have tested this fairly extensively on some arrays built out of
loop back devices, and once on a real live array. I haven't lot any data
and it seems to work OK, though it is possible I am missing something.
--- mdadm-2.6.1/mdadm.c.writebehind 2006-12-21 16:12:50.000000000 +1030
+++ mdadm-2.6.1/mdadm.c 2007-06-30 13:16:22.000000000 +0930
@@ -827,6 +827,7 @@
bitmap_chunk = bitmap_chunk ? bitmap_chunk * 1024 : 512;
continue;
+ case O(GROW, WriteBehind):
case O(BUILD, WriteBehind):
case O(CREATE, WriteBehind): /* write-behind mode */
write_behind = DEFAULT_MAX_WRITE_BEHIND;
--
Ian Dall <[EMAIL PROTECTED]>
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