I have a broken raid1 drive set - i was able to fix 1 but the other raid still has issues. i have gone through the tutorials online to bring it back online but still unable to bring it back.
Do i have to run fsck on the individual member drives ??? my /proc/mdstat looks like: Personalities : [raid1] md1 : active raid1 sdc1[0] sdd1[1](S) 976758841 blocks super 1.2 [2/1] [U_] md0 : active raid1 sda1[2] sdb1[1] 972654456 blocks super 1.2 [2/1] [_U] [==========>..........] recovery = 50.7% (493690944/972654456) finish=416.5min speed=19162K/sec my fstab is : # <file system> <mount point> <type> <options> <dump> <pass> proc /proc proc defaults 0 0 # / was on /dev/md0 during installation UUID=611258bc-4ace-4779-b44d-73ba1949f7db / ext4 errors=remount-ro 0 1 # swap was on /dev/md1 during installation UUID=f9dc126d-9593-475a-ab0e-b4126146d885 none swap sw 0 0 /dev/scd0 /media/cdrom0 udf,iso9660 user,noauto 0 0 /dev/fd0 /media/floppy0 auto rw,user,noauto 0 0 /dev/md1 /mnt/raid ext4 rw 0 1 my questions is : 1. how can i bring it back online. 2. what is the (S) mean ? 3. how do i run fsck or other utility on ext4 filesystem ? 4. do i run it on the raid1 device /dev/md0 or on the individual devices /dev/sda and /devsdb thanks mjh