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Forum Discussion
My ReadyNAS 104 died due to lightning - how to recover data
Hi! My area was hit by a lightning, approx 40 meters from my house (one tree ). And unfortunately my ReadyNAS 104 died. I am not 100% sure how it was setup, but I know I had it in a raid setup. Al...
jma73 wrote:
- If I am very lucky, it is only the power-adapter that broke, but I doubt it. Eg. My router was completely dead (both power adapter and the router it self.).
Still might be worth a risk-buy of a compatible adapter. You can find them (US anyway) for about $20 USD.
jma73 wrote:Questions:
- Anybody who can suggest how I can check if the disks are still working?
You can connect them to your PC (either SATA or with usb/adapter dock) and check them with vendor tools. Seatools for Seagate, Dashboard for Western Digital. Windows won't mount them, but the software will find them.
jma73 wrote:
- Is the filesystem EXT3 or EXT4? (I probably set it up around 2014-15 ). I must have used the default.
No, it's BTRFS.
jma73 wrote:
- And how to access the data again. I guess I need to somehow create the setup in another raid system. Or what?
- I have a old stationary PC. Could it be possible to set them up? Or would I need some raid hardware?
The NAS uses software RAID (mdadm), so no RAID hardware needed.
Options for recovery include:
- purchasing a replacement OS-6 NAS (or a 4.2 NAS that can be converted to OS-6). These would be used, and possibly old. Then upgrade the firmware to the current version using a spare disk, and migrate the disks to the new NAS.
- Get the hardware needed to connect the disks to your PC. This could be a 4-bay USB enclosure, or possibly two 2-bay enclosures. Cost (US pricing) would be ~$100--$150. Note you will need enough storage to offload the data.
If you go with (2), you will need to either
- boot the PC up with linux, and install mdadm and btrfs. Then manually mount the data volume.
- purchase RAID recovery software that includes btrfs support. ReclaiMe is one option people here have used with success.
- install beta software on the PC for mdadm/btrfs under windows, and try to use that.
The beta software would be
Definitely a work-in-progress, but free to try.
StephenB Thanks a lot! It is all very useful information for me. It's going to take a lot of time for me to go through all this (since I have limited time). But I have many things to try now.
First I think I will try to connect the disks to a computer to verify that they are working. As mentioned I still have an old stationary pc, but first I need to prepare it a little (I have stuff on it, but haven't turned it on for several years now). As I remember I can connect several harddrives ( at least 3, maybe 4 or even 5).
Later I should probably get a blank harddrive, then install linux to try to set up the RAID.
Sandshark
The point that the Network adapter could be fried too is very valid I am afraid.
By the way - I am from Denmark, so most things are a little more expensive.
I am also quite busy, so it will probably take me long time before I do each step. So it is not to be rude that I might answer slowly.
Best regards and again: Thanks a lot for your help!
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