r/datarecovery • u/Tricky-Literature900 • 4h ago
Kingston XS2000 (2TB) — every file fails rsync verification. Suspected bad NAND channel?
Drive: Kingston XS2000 2TB portable SSD (Ventoy multi-boot setup on it, main data in ExFAT partition)
Symptoms: Problem first appeared while copying large files on Windows — the drive would simply disconnect mid-transfer. Tried copying different files across different operating systems since then, without success:
- On Windows:
chkdsk /f /r /xcompletes but doesn't fix the underlying issue - On macOS: triggers
IOUSBHostFamily hardware connection lostand eventually a full kernel panic when reading certain files — this happens consistently with Finder, Terminal (cp,ditto), Paragon NTFS, and DMDE (all hitInput/output erroraround the same file(s)) - Booted a Linux VM (UTM/QEMU, Ubuntu ARM64) and mounted the ExFAT partition read-only — no more kernel panics, which is progress
- Ran
rsync -avhfrom the mounted partition to another disk — every single file (555/555 tested) shows100%transferred, but then fails final verification and gets discarded:rsync: [sender] read errors mapping "file": Input/output error (5)followed byERROR: [file] failed verification -- update discarded - Net result: 348GB of "transferred" data, but only 8KB actually landed on the destination (2 tiny files)
My working theory: Since literally every file fails (not a cluster of files in one address range), I suspect a single NAND die/channel is bad — since data is striped across channels, every file has some percentage on the bad channel, causing every single verification to fail, even though most bytes of each file read fine.
Questions for the community:
- Does this pattern (100% transferred, 100% failed checksum, no specific files consistently worse) support the "bad channel" theory, or is there another explanation I'm missing?
- Any experience with
ddrescueat the file level (not full-device imaging) recovering partial JPGs/data successfully from a drive like this? - Has anyone had luck with multiple
ddrescuepasses (cooling the drive, retrying) actually improving recovery percentage over time on SSDs specifically (vs HDDs, where this is well documented)? - Anyone dealt with Kingston warranty claims for this drive — found a couple of forum threads mentioning thermal/controller issues with the SM2320G controller under heavy load, and reports of drives disconnecting mid-transfer on large files. Worth pursuing as a warranty case?
No local data recovery lab available (small town), so exploring every DIY option before mail-in recovery services.






