Hi all. I've been noticing a bunch of I/O errors spitting out in the kernel log. This one keeps repeating itself throughout the day
[118279.064263] print_req_error: I/O error, dev sda, sector 361996792
Is this a sign of my HDD failing?
If it is always the same (or close) sector number, then most probably this is a damaged HDD. If the sector changes erratically, this could be a connection failure.
I would do a backup copy of that drive immediately, then use some utility to check (and perhaps fix) all the sectors.
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Whereby 'fixing' means hiding/ mapping out the affected sectors with spare ones, the sectors themselves remain broken - and usually the damage will extend to nearby sectors in the short term future.
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...or just run a long smart test and/or look at drive stats using smartctl from smartmontools?
I/O error, dev sda, sector 361996784
I/O error, dev sda, sector 363124736
Yeah I see other sectors like this. I guess I'll start a backup asap
I get an error when I run the smartctl tool
Device does not support Self Test logging
I'm guessing it doesn't work with an enclosure?
It does, however if it's a very old enclosure it's likely that USB-controller doesn't. You might need to apply some quirks for some controllers however, see https://www.smartmontools.org/wiki/USB .
Thank you. I managed to get it to work. The Reallocated Sector Count's raw value is 16. I guess that confirms there are bad sectors on this drive.
In case anyone out there uses this same HDD dock the command to access smart stats is
smartctl -a -d sat /dev/your drive here
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