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 <ian@xxxxxxxxxxxxxxxxxxxxx> - To unsubscribe from this list: send the line "unsubscribe linux-raid" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
