>>9086
WOW, I AM "SO FUCKING DONE".

I have an 18-TB external HDD which needs to be plugged in to an outlet to run. FS=ZFS, and it is 8.66 terabytes full. I left my computer while adding more data to it from another HDD. While I was away there was apparently a power lose because HPC got turned off (main computer didn't get turned off because it is a laptop with some battery life). I come back to see that it is "SUSPENDED" = no big deal, that happens in the few times that it powered down due to power lose. I cleared it to remove that label then reimported it and whatever. Then it said "DEGRADED" so I ran the scrub command. Verbose status of zb = permanent errors on 37 files and 56 folders.

zb Power_On_Hours = about 791 straight, which is less than 4,000 hours. 99.9% of zb is IPFS data, so that should help in the cases where I get:
>$ ls /zb/ipfs/blocks/W7
>ls: reading directory '/zb/ipfs/blocks/W7': Input/output error
>$ # Pain!
So I cannot look inside probably multiple folders - I just get that error. It would be nice to see the contents of those folders, but not super needed because IPFS knows that paths of the .data files in there due to .ldb and pins metadata which I don't think got corrupted. Still, I have 37 .data files which are broken and zb's degraded which basically means "use this as little as possible". 93 items with errors is like the number it saw before that zpool became suspended again.

Backups would not have saved me because I don't have another same-sized HDD, and even if I did automatically backup with some zRAID thing, then that would use too many USB ports (and IDK where my USB hub thing is). I only ever added to that HDD whenever it was on, didn't remove anything or otherwise mess around. And before you do any backups you first have to have a functioning HDD for long enough - which I was unlucky enough to not have. I was backing up lots of stuff in zb into HPC whenever I could, but now I see that it is screwed, so I can't really do that.

I had hoped to use this >10-TB HDD as little as possible and only use it for cold storage, but it still got jacked up. I thought I could use it as little as possible ("only for storage") and it would last at least years, but nope, degraded after month(s). What's the less to learn here?
. Don't use >5TB external HDD because those need power from an outlet, and if you lose power while writing data, shit could get fucked up.
. If you do use an external HDD which needs outlet power, only use it an a RAID/ZRAID mirror array.
. Don't use an external HDD which needs outlet power at all; just use internal SATA/non-USB-connected HDDs or anything else (like SSDs or whatever).