[colug-432] Failing Hard Drive Mystery

[Joseph Beard]

Hello,
My ThinkPad has recently started exhibiting some odd behaviour that doesn't
make sense to me. Occasionally, and seemingly at random, this message will
pop up in my terminal:

WARNING: Your hard drive is failing
> Device: /dev/sdc [SAT], unable to open device
>

Normally, I'd take a message like this to mean just that: that my hard
drive is failing. But here's the weird thing: there is no `/dev/sdc` in
this box. I have `/dev/sda` (a Seagate SSHD), and `/dev/sdb` (an MSATA
SSD). I am _occasionally_ connected to a USB HDD, which I believe shows up
as `sdc`, but these messages appear when I am not connected and haven't
been connected for some time (sometimes hours). I do not have any
filesystems mounted on the external when I disconnect.

Just for sanity's sake, I've used `smartctl` to test all three devices and
have had no errors reported. I feel I can safely ignore this, because it
seems crazy, but I'd
really feel much better knowing why it's happening.

I'm running CentOS 7. Any ideas?


Joe
--
Joseph Beard
joseph at josephbeard.net
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