I'm doing this so I know how to recover my data in case the NAS itself dies out and I'm only left with just a single drive from the 2nd bay (or from the 1st bay).
- Synology DS214+ NAS
- 2x 4TB drives in Raid 1 (non-SHR)
- Created one volume and a few shared folders
What I want to achieve
Recover the data from the drive I removed from the 2nd bay without using the other drive in the 1st bay by using Ubuntu 12 running in VMware Player.
Things I have done so far
- shutdown NAS
- removed the drive from the 2nd bay of my NAS
- setup ubuntu 12.04 on vmware player
- installed lvm2 and mdadm
- inserted my drive from the 2nd bay (which I want to recover the data from) to a USB enclosure which is inserted to my laptop
Here's what the drive looks in "Disk Utility"
I've been trying to follow this FAQ from Synology but no luck.
I tried running few commands and here's what I got:
root@ubuntu:~# mdadm -Asf && vgchange -ay mdadm: No arrays found in config file or automatically root@ubuntu:~# mdadm --examine /dev/sdb /dev/sdb: MBR Magic : aa55 Partition : 4294967295 sectors at 1 (type ee) root@ubuntu:~# mdadm --examine /dev/sdb1 mdadm: No md superblock detected on /dev/sdb1. root@ubuntu:~# mdadm --examine /dev/sdb2 mdadm: No md superblock detected on /dev/sdb2. root@ubuntu:~# mdadm --assemble /dev/md0 /dev/sdb1 mdadm: no recogniseable superblock on /dev/sdb1 mdadm: /dev/sdb1 has no superblock - assembly aborted root@ubuntu:~# mdadm --assemble /dev/md0 /dev/sdb2 mdadm: no recogniseable superblock on /dev/sdb2 mdadm: /dev/sdb2 has no superblock - assembly aborted root@ubuntu:~# mdadm --assemble /dev/md0 /dev/sdb mdadm: Cannot assemble mbr metadata on /dev/sdb mdadm: /dev/sdb has no superblock - assembly aborted root@ubuntu:~# cat /proc/mdstat Personalities : [linear] [multipath] [raid0] [raid1] [raid6] [raid5] [raid4] [raid10] unused devices: <none> root@ubuntu:~#
I do not understand why the Disk Utility is showing up 2.6GB, 2.1GB, and 1.8TB. It doesn't sum up to 4TB.