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Forum Discussion
Solved
Should I worry about "bit rot" with no visable drive errors?
Running my monthly scrub 25% of the way through I've seen 4 reports of bitrot from files I confirmed viable before transfering to my NAS over ethernet. There are literally 0 disk errors or warnings ...
I'd do a binary compare of your backup files and the ones on the NAS, and see if they are actually different. Please post back either way.
Also, which firmware are you running?
Do you recall which firmware you were running when you added these files?
I did a CRC check from the NAS files to my backup and they're totally off.
Attempts to copy from the NAS filesystem (on these 4 files only) gives an Input/output error via CLI on my desktop Linux system.
Any other files that I've randomly tested pass CRC and playback tests just fine. So that's fantastic. :)
Firmware version is 6.2.4 currently and at the time of transfer.
My scrub still has a day or so left so I'll note any further failures that I come across.
Yes, definitely bit-rot has occurred.
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