My Ready Nas104 is reporting Data is Dead as I pulled 2 drives out while it was online.
I placed the disks back and powered it off and back on and got the message remove the inactive volumes to use the disk 1234
Then I deleted the volumes data- 0 and data. With that done i think all my data is lost on these new disks
This issue happened on my new disks which were all sync'd, with that said I still have my original disks that were taking out 1 week ago Disk 1, 3 and 4 is there anyone who can assist or recommend what options I might have have.
Hi Stephen, thank you for the response, i also have the 3tb original disks that I pulled out a week ago. Disk 1, 2 and 4 is there any way that this will makemit easier? And the NAS might pick up the original volume settings?
If you pulled all those drives at the same time with power off, then you should be able to simply insert them all (just them) with power off and have access to the data when you power on. If you pulled them and the NAS ran at all between those events, it's going to take a lot more and may or may not be successful.
I'm going to go a step farther than @StephenB . When you destroyed the "extra" volumes (which were parts of the original the NAS could not properly link together), you absolutely destroyed your data. There is no recovery from those drives, period.
Next time, come to the forum before you do anything. We likely could have helped you when all that was wrong is the volume was dead.,
@gtadevos wrote: Thanks Sand Shark, so are you recommending i power down the NAS and put the original drives back in and remove all the x4 new ones?
Yes. Then boot the NAS. If you removed all the original disks with the power off, then you should see your data (although the volume will be degraded).
If you removed the disks with the power on, then the volume might not mount. Let us know if that happens.
Looks like you removed the disks with the NAS powered up. Did you remove them all at once?
Can you download the full log zip file from the logs page?
If you like, I can take a look at it. You'll need to upload it to cloud storage (dropbox, google drive, etc), and then send me a download link in a private message (PM). You send a PM using the envelope icon in the upper right of the forum page. Make sure you set the link permissions so anyone with the link can download.
@gtadevos wrote: Correct thats the process i followed.
That makes recovery from these disks very problematic. You do have snapshots enabled, and it is clear from the logs that snapshots at least were being written and deleted from the disks during the process. That would make the RAID array out of sync.
FWIW, the data volume status in dmesg.log is
>>>>>>>>>>>>
[Thu May 16 16:01:25 2024] md: md127 stopped. [Thu May 16 16:01:25 2024] md: bind<sda3> [Thu May 16 16:01:25 2024] md: bind<sdb3> [Thu May 16 16:01:25 2024] md: kicking non-fresh sda3 from array! [Thu May 16 16:01:25 2024] md: unbind<sda3> [Thu May 16 16:01:25 2024] md: export_rdev(sda3) [Thu May 16 16:01:25 2024] md/raid:md127: device sdb3 operational as raid disk 0 [Thu May 16 16:01:25 2024] md/raid:md127: allocated 4294kB [Thu May 16 16:01:25 2024] md/raid:md127: not enough operational devices (3/4 failed)
>>>>>>>>>>>>>
I'm not sure why sdc3 isn't listed - though it is likely that it got marked as a spare during one of the disk manipulations.
Raid recovery software (or a data recovery service) might be able to get some of your data back. Unfortunately I'm not seeing any other possibility.
@gtadevos wrote: For Raid recovery software is there one that you have used that is worth using?
It's not something I've needed to use myself.
You need something that supports both BTRFS and linux software RAID. ReclaiMe is one package that several folks posting here have used with success. You can download it, and see if it can recover anything before you purchase it. (You would need to purchase to actually recover anything).
You'd also need a way to connect the disks to a Windows PC (ReclaiMe runs on Windows). Likely you won't have enough SATA ports, so you would need some USB adapter/docks. There are some out there that support multiple disks.
The steps I listed in my final post there might get you back to where you were before you destroyed the volumes, but there would still be work to do to ressurrect the BTRFS volume.
The steps I listed in my final post there might get you back to where you were before you destroyed the volumes, but there would still be work to do to ressurrect the BTRFS volume.
Not with the original disks.
Maybe with the set that was installed when @gtadevos destroyed the volume. But I think all that would do is prevent the resync from completing.
Try and restore all the data on each drive individually
There's no way to do that. RAID creates a virtual disk that the file system is installed on. The data is "striped" across the disks (so a large file will have some data blocks on each disk).
If you want to try RAID recovery software like ReclaiMe, you will either
need to enough USB/SATA enclosures to connect all the disks. A 4-bay docks will work, or possibly two 2-bay docks. 4-bay docks sometimes have hardware RAID - which you don't want, as it will get in the way.
need to create disk images of all the disks on the PC. That requires enough storage on the PC to hold all the disk images (but you only need to connect one disk at a time to make the images).
