Forum Discussion

Aspirant

Nov 15, 2016

ReadyNAS Ultra 2: how to recover data from RAID-1 disks?

Hello, - I have a ReadyNas -> Netgear RNDU2120-100PES (check image below). - It has a "blue light" - but the network port NIC seems totally dead. Not link at all. So my guess unit works w...

Feature Request & Feedback

StephenB

Guru - Experienced User

Nov 15, 2016

You have an Ultra-2, not an RN102 - so your title isn't correct.

Your command sequence looks ok.

mdgm-ntgr
NETGEAR Employee Retired
Nov 15, 2016
Fixed the thread title.

It's advisable to check disk health and the state of the RAID array before proceeding to run the commands you mentioned.
- divisionmd
  Aspirant
  Nov 15, 2016
  Hello mdgm,
  
  - Can you update me on the commands i should run to check the "helath and state of RAID array" ?
  
  - Also note - > i have one of the disks attached to a PC - should i attach both disk?
  
  Best regards,
  Johan
  - divisionmd
    Aspirant
    Nov 15, 2016
    Hello Again,
    
    - I know ran the commands:
    # mdadm --assemble --scan
    # vgscan
    # vgchange -a y
    # mount /dev/c/c /mnt
    
    But cant seem to mount the drive- error "unknown filesystem type 'linux_raid_member".
    
    Note i have one of the two disks - connected to the PC.
    
    Look at images below: