Please stop being a minimalist and provide all the data. You are driving me nuts by not providing all the data requested. If you are not going to take this seriously then why should anyone else.
Post the SMART output for all of your drives, not just ada0, well you already posted that one so you don't need to do it again. It appears you are done running Memtest on your system so now kick off a SMART Long Test on all the drives and wait the required time period, then post a SMART output for all those drives.
Why are we asking you to go through these motions you ask, it is to rule out any of the hard drives as causing your issues.
If you want to keep forcing the import of your pool, have at it, it's your data at risk.
I don't normally get upset but honestly these folks are trying to help you and I just don't feel like you care a whole lot and just want to do your own thing. That is fine, just don't ask for help if you are not going to take our advice.
Look guys, I'm just here to get some advice from folks who know FreeNAS, FreeBSD, and ZFS better than the vast majority. I know my way around information technologies, but FreeBSD and ZFS is still a bit fresh for me, so why not ask the experienced guys? I have enjoyed being able to converse with like minded individuals who I can learn something from. Honestly, until just a few days ago, I was just a forum lurker. I very rarely make any posts at all.
Obviously I have hit a nerve with at least a couple of you, and that was never my intention, of course. I've been up for almost three days straight because I'm about the lose 24TB worth of data that is just within arms reach(and no, like I said before, I do have backups). The point is, I started this NAS project years ago as a hobby, and It's always been such a rock solid system. I know how robust ZFS is. I know that my data is still on those disks. It's just a matter of understanding how it all works together to snap back in to place. I never put all of my eggs in one basket, but it's still a bit unsettling to think that that much information could just go "poof", so I may have been a little more on edge than usual. I just spent several thousand dollars upgrading my hardware over the last year, and now that I'm not using obsolete, consumer grade, hand-me-down hardware, this happens. Not trying to whine. I know it happens to everyone. Just a bit frustrated.
With that said, If there's information that has been requested, and I have not provided it, sometimes twice, that's news to me. Post #14 on page 1 has the smartctl output for every one of my physical disks in the pool. Shortly thereafter, I took a 48 hour break to allow memtest to run, just like was suggested to me. I have tried to run long SMART tests, but they keep failing. It's like Schrodinger cat. If I try to observe the process, it kills itself, apparently. Every long test result looks exactly like this. I'm not resetting the host every time one of these tests gets 10% complete, I can assure you.
Code:
# 3 Extended offline Interrupted (host reset) 90% 12641 -
I've thrown out several outside the box type of suggestions to get opinion, and I've learned what not to do from a lot of those suggestions. Isn't that why we are all here? I imagine I'll stick around this board for some time, and I'd be happy to pass along any knowledge that I'm gaining if I saw a question that I could answer.
I don't take you guys for the anonymous morons that like to be jerks to people for no reason, like a lot of message boards and other social media around the internet. I was just a little caught off guard by the hostility. I guess I should go back and reread my posts. Maybe it will make more sense to me.
Anyway, might as well finish this novel by talking about the subject at hand. I've been working on it all evening and I believe I'm making some progress and narrowing down the issues. I exported the volume and took the drives to another machine. The CRC/Parity errors went completely away and the pool started resilvering. I still can't get it to import through the GUI though. It just reboots with that very fast scrolling text from the video I posted. When I do a manual import, it looks like everything is there and correct as far as the directory structure, but there are just no files and nothing that reports any data. I haven't had any luck mounting a snapshot either, but I need to do a little more reading in to that. I bought some brand new round SATA cables a few months ago and I'm beginning to wonder if they were just no good. I'm trying to get the pool as healthy as I can in this other box. In the meantime, I've got a couple more 4TB Reds and the way, as well as an IBM M1015 SAS/SATA controller for additional, off board ports, and, of course, some sata cables.
I do appreciate all of the advice. If there is in further information that I could provide that I missed, I would be happy to do so. You guys are doing me the favor here and have been helpful.