Wols, et al -- ...and then Wols Lists said... % % On 21/05/20 00:53, David T-G wrote: % > ## parted % > Model: ATA ST4000DM000-1F21 (scsi) ... % > SCT capabilities: (0x1085) SCT Status supported. % > SMART Error Log Version: 1 % > ## scterc % > SCT Error Recovery Control command not supported % > % > Curiously, note that querying just scterc as the wiki instructs says "not % > supported", but a general smartctl query says yes. I'm not sure how to % > interpret this... % % Seagate Barracudas :-( Yep. They were good "back in the day" ... % % As for smartctl, you're asking two different things. Firstly is SCT % supported (yes). Secondly, is the ERC feature supported (no). % % And that second question is the killer. Your drives do not support error % recovery. Plan to replace them with ones that do ASAP! That would be nice. I actually have wanted for quite some time to grow these from 4T to 8T, but budget hasn't permitted. Got any particularly-affordable recommendations? This whole problem sounds familiar to me. I thought that it was possible to adjust the timeouts on the software side to match the longer disk time or similar. Of course, I didn't know that I had a real problem in the first place ... But does that sound familiar to anyone? % ... % % In the meantime, make sure you're running Brad's script, and watch out % for any hint of lengthening read/write times. That's unlikely to be why % your overlay drives won't mount - I suspect a problem with loopback, but % I don't know. I most definitely also want to be able to spot trends to get ahead of failures. I just don't know for what to look or how to parse it to write a script that will say "hey, this thingie here is growing, and you said you cared ...". % % What I don't want to advise, but I strongly suspect will work, is to % force-assemble the two good drives and the nearly-good drive. Because it % has no redundancy it won't scramble your data because it can't do a Should I, then, get rid of the mapper overlay stuff? I tried pointing to even just three devs and got that they're busy. % rebuild, but I would VERY STRONGLY suggest you download lsdrv and get % the output. The whole point of this script is to get the information you You mean the output that is some error and a few lines of traceback? Yeah, I saw that, but I don't know how to fix it. Another problem in the queue. % need so that if everything does go pear shaped, you can rebuild the % metadata from first principles. It's easy - git clone, run. ... and then debug ;-) % % Cheers, % Wol Thanks again & HAND :-D -- David T-G See http://justpickone.org/davidtg/email/ See http://justpickone.org/davidtg/tofu.txt
