So these last few months my hard drive has been making some weird noise from time to time and it's been taking a little more time to load certain folders. It's a sound I've heard before, but I feel like it's been getting more frequent these days. For reference, I have a 3 TB Seagate Barracuda ST3000DM001 (which, from what I've just read, is infamous for its failure rate, but I've had it since 2011/2012 so I guess it's a miracle it's lasted this long).
I decided to try crystaldiskinfo out of curiosity, just to check my disk health. What I found was "caution" current pending sector count 978 and uncorrectable sector count 978. 978 seems to be the "raw value" and it sounds insanely high. I'm not exactly sure how to read this and what this means, but I take it it's not good. Should I back up all my data asap? Is this drive's failure imminent? Is there any way to approximately estimate how long it's got and how severe this issue is?