I am running two commands on my server console to make sure the software RAID is 100% working. mdadm --detail /dev/mdX and cat /proc/mdstat Below the output of these commands. I would appreciate if someone could confirm that all is really OK with my RAID 1. Thank you! root@server [~]# mdadm --detail /dev/md0 /dev/md0: Version : 1.0 Creation Time : Tue Oct 2 16:45:53 2012 Raid Level : raid1 Array Size : 524276 (512.07 MiB 536.86 MB) Used Dev Size : 524276 (512.07 MiB 536.86 MB) Raid Devices : 2 Total Devices : 2 Persistence : Superblock is persistent Update Time : Mon Apr 15 00:23:01 2013 State : clean Active Devices : 2 Working Devices : 2 Failed Devices : 0 Spare Devices : 0 UUID : f8e20699:8505d1df:dd6db30b:5e5620bd Events : 103 Number Major Minor RaidDevice State 0 8 1 0 active sync /dev/sda1 1 8 17 1 active sync /dev/sdb1 root@server [~]# root@server [~]# mdadm --detail /dev/md1 /dev/md1: Version : 1.1 Creation Time : Tue Oct 2 16:45:55 2012 Raid Level : raid1 Array Size : 975186812 (930.01 GiB 998.59 GB) Used Dev Size : 975186812 (930.01 GiB 998.59 GB) Raid Devices : 2 Total Devices : 2 Persistence : Superblock is persistent Intent Bitmap : Internal Update Time : Wed Apr 17 07:01:43 2013 State : active Active Devices : 2 Working Devices : 2 Failed Devices : 0 Spare Devices : 0 UUID : 681911b7:90132486:17358d26:3966cf6e Events : 143950 Number Major Minor RaidDevice State 0 8 3 0 active sync /dev/sda3 1 8 19 1 active sync /dev/sdb3 root@server [~]# root@server [~]# cat /proc/mdstat Personalities : [raid1] md0 : active raid1 sda1[0] sdb1[1] 524276 blocks super 1.0 [2/2] [UU] md1 : active raid1 sda3[0] sdb3[1] 975186812 blocks super 1.1 [2/2] [UU] bitmap: 7/8 pages [28KB], 65536KB chunk unused devices: <none> root@server [~]#
Looking at the output you have pasted above, the RAID is working properly for it. Don't see any issues here though.