Nvme SSD randomly died while in use

Help
1

Long story short, I was having a great lunch with parents when I came back to my pc and saw all my opened applications randomly crashing. None of my programs opened and I shut down the pc, at that moment I already knew something has happened to my Western Digital nvme ssd. Thankfully I had some partial backup but my few weeks old infrastructure configuration has been lost due to this catastrophic event.

I am quite the heavy user and I abused it for a long time but I have never really reached the TBW (58TB/300TB). My nixos system was LUKS encrypted, and after a quick restart my boot partition seems to work but not my /root which is encrypted.
I have ran a few tests and experiments but I still have no Idea if the ssd is really dead and no data can be recovered anymore.

Smartctl’s output:

=== START OF SMART DATA SECTION ===
SMART overall-health self-assessment test result: FAILED!
- available spare has fallen below threshold
- media has been placed in read only mode

SMART/Health Information (NVMe Log 0x02)
Critical Warning:                   0x09
Temperature:                        51 Celsius
Available Spare:                    0%
Available Spare Threshold:          10%
Percentage Used:                    13%
Data Units Read:                    70.837.653 [36,2 TB]
Data Units Written:                 43.515.977 [22,2 TB]
Host Read Commands:                 1.026.740.170
Host Write Commands:                651.610.322
Controller Busy Time:               8.543
Power Cycles:                       2.236
Power On Hours:                     3.713
Unsafe Shutdowns:                   221
Media and Data Integrity Errors:    0
Error Information Log Entries:      1
Warning  Comp. Temperature Time:    0
Critical Comp. Temperature Time:    0

I tried rebuilding the ext4 filesystem, and I always got a bad superblock error.

sudo fsck.ext4 -v -f -b 32768 -B 4096 /dev/mapper/crypto

What’s the best I could do to recover any data? I don’t really want to spend $500 for a recovery service.

2

I would start by making an image of it onto another device.

3

I was thinking of dumping it into a .img but I don’t know how to do that, and I haven’t found some clear answers on it. I also don’t have the amount of storage needed to fully clone the disk.

4

That would usually be the first step, I think. Obtain a larger device and make an image. The most straightforward way is something like dd status=progress if=/dev/foo of=/dev/bar.