~ # mdadm -E /dev/sdb3
/dev/sdb3:
Magic : a92b4efc
Version : 1.2
Feature Map : 0x0
Array UUID : eac8b171:b17ae035:dcfe7fed:73e96d98
Name : mint:0
Creation Time : Sat Jul 5 16:00:41 2014
Raid Level : raid1
Raid Devices : 2

Avail Dev Size : 83820544 (39.97 GiB 42.92 GB)
Array Size : 41910272 (39.97 GiB 42.92 GB)
Data Offset : 65536 sectors
Super Offset : 8 sectors
Unused Space : before=65448 sectors, after=0 sectors
State : clean
Device UUID : f2d08c77:96a8db05:8d32c039:1478cf5d

Update Time : Sat Sep 27 10:35:08 2014
Bad Block Log : 512 entries available at offset 72 sectors
Checksum : 11bc24bb - correct
Events : 159653


Device Role : Active device 1
Array State : AA ('A' == active, '.' == missing, 'R' == replacing)
~ # mdadm -E /dev/sda3
/dev/sda3:
Magic : a92b4efc
Version : 1.2
Feature Map : 0x0
Array UUID : eac8b171:b17ae035:dcfe7fed:73e96d98
Name : mint:0
Creation Time : Sat Jul 5 16:00:41 2014
Raid Level : raid1
Raid Devices : 2

Avail Dev Size : 83820544 (39.97 GiB 42.92 GB)
Array Size : 41910272 (39.97 GiB 42.92 GB)
Data Offset : 65536 sectors
Super Offset : 8 sectors
Unused Space : before=65448 sectors, after=0 sectors
State : clean
Device UUID : 19802667:5e4f97cd:ada4e32e:3ec557a5

Update Time : Sat Sep 27 17:44:09 2014
Bad Block Log : 512 entries available at offset 72 sectors
Checksum : 5ba9f0c - correct
Events : 159791