NSA325-v2, assemble Raid partition

To check existing RAID partition:

$ cat /proc/mdstat

To assemble the raid array:
$ mdadm --assemble /dev/md0 /dev/sda1 /dev/sdb1

To stop:
$ mdadm --stop /dev/md1

Now you can mount the raid array to mount point:
$ mount /dev/md1 /root/md1