root@files:~# mdadm -D /dev/md0 /dev/md0: Version : 1.2 Creation Time : Thu Dec 15 22:30:08 2011 Raid Level : raid10 Array Size : 19526656 (18.62 GiB 20.00 GB) Used Dev Size : 9763328 (9.31 GiB 10.00 GB) Raid Devices : 4 Total Devices : 4 Persistence : Superblock is persistent
Update Time : Mon Dec 17 14:02:59 2012 State : clean Active Devices : 4 Working Devices : 4 Failed Devices : 0 Spare Devices : 0
Layout : near=2 Chunk Size : 512K
Name : files:0 (local to host files) UUID : c110576a:f2341e18:c900029b:09f51135 Events : 520
Number Major Minor RaidDevice State 4 8 1 0 active sync /dev/sda1 1 8 17 1 active sync /dev/sdb1 2 8 33 2 active sync /dev/sdc1 3 8 49 3 active sync /dev/sdd1