Hi David,
Am 03.12.2014 um 02:14 schrieb David McGuffey davidmcguffey@verizion.net:
This is an automatically generated mail message from mdadm running on desk4
A DegradedArray event had been detected on md device /dev/md0.
Faithfully yours, etc.
P.S. The /proc/mdstat file currently contains the following:
Personalities : [raid1] md0 : active raid1 dm-2[1] 243682172 blocks super 1.1 [2/1] [_U] bitmap: 2/2 pages [8KB], 65536KB chunk
md1 : active raid1 dm-3[0] dm-0[1] 1953510268 blocks super 1.1 [2/2] [UU] bitmap: 3/15 pages [12KB], 65536KB chunk
the reason why one drive was kicked out (above [_U] ) will be in /var/log/messages. If it is also part of md1 then it should be manually removed from md1 before replacing the hd.
-- LF