Max

hey everyone i just noticed that my parity drive has come up with a SMART error and its UDMA CRC error and so far its only one error, should i be worried and replace it asap ?? The drive in question here 8TB Seagate Ironwolf and its only 9 months old. unraid-diagnostics-20231204-2155.zip

thanks unraid's main page shows zero errors. Should I go ahead with the parity check that failed on Dec 2nd. ( that was scheduled parity check)

@JorgeB okay something weird is happening again first off replacing psu somehow cleared the bios which resulted it to be back on optimized defaults, meaning no more proper iommu group sepration but i thought i will figure it later. so important stuff now, so last yesterday night when i checked it was going fine i think it was almost 80 percent done without any errors but this morning when logged on webgui it showed a notification saying data rebuild finished with 310912 errors !!! though the disk has returned to normal operations and data is there and accessible and logs also doesn't show any errors or warning. and somehow all this changed my unraid servers name and screwed time, so time is off on the logs. tower-diagnostics-20231204-0829.zip

so far looks like it was bad sata power splitter as i did try again after reseating the cables (i tried reseating cable again cause i realized that last time i mistakenly reseated cables of completely different drive😅) and now while rebuilding data it started throwing errors on disk 2, disk 2 and 3 are the ones that are connected through sata power splitter, so finally decided to pull the plug on sata power splitters and bought myself Gigabyte P750GM which comes with 8 sata connectors. i dont know its just my bad luck or what, my history with SATA cables and power splitters has been quite troublesome. I found myself frequently reseating or replacing these cables every 2-3 months. About 6 or 7 months ago, I invested in an LSI 9207-8i, and since then, I haven't encountered a single issue related to SATA link speed or any other connectivity problems. Here's hoping that this new power supply will have a similar positive impact on my SATA power issues.

yeah actually thats what i meant that it mainly talks about ungraceful shutdown due to too short of a timeout but honestly as this wasn't my first unclean shutdown i have manually tested it many times like deliberately pulled out the cord to see whether it stays on on ups or not or whether it shuts down properly according to set rules. i have tried different plug points on the back of ups, changed the power cords as well, still haven't figured out whats the issue. @JorgeB ahh looks we are back to square one, disk3 is again throwing read errors and its disabled and currently being emulated unraid.local-diagnostics-20231202-1923.zip

just gave it a read but thing is, it mainly talks about ungraceful shutdown after a power failure but there was no power failure.

phewww!!! finally rebuild is finished and fortunately without any errors or weird notifications this time and disk3 is back up and running in normal operation dont know what went wrong the first time. BTW any guesses on what could have caused unclean shutdown in the beginning.

okay i have uninstalled parity check tuning plugin started rebuilding again, so far looks good, started from zero percent this percent time. gonna take much longer this time 😅

here's the latest log unraid.local-diagnostics-20231201-0025.zip

okay once again i just removed the drive from pool and started the array normally although now its says disk3 missing but once again just like earlier disk3 contents are getting emulated and i can access any content that supposed to be there. can i try rebuilding again cause im not too sure about earlier rebuild process i mean how could it do 71-72 percent rebuilding in a couple of minutes ??

i used maintenance mode because unraid docs recommends using it for better speeds. And earlier when it was in normal mode, the emulated disk was mountable and i was able to access any data that was supposed to be there in disk 3.

after rebuilding the data, i stopped the array as it was in maintenance mode and started the array normally and now my disk 3 is saying unmountable: Unsupported or no file system. unraid.local-diagnostics-20231130-1056.zip

okay so after reseating the cables i have started rebuilding data but im not sure wheteher everything is going fine here, cause firstly the moment i clicked sync webgui became unresponsive for almost a minute then when it came back it got paused on its own. Secondly its all ready done 73issh percent. im not sure whether this is how it works or i m doing something wrong here. unraid.local-diagnostics-20231129-2208.zip

Hey guys so for some unknown reason my server detected unclean shutdown this morning although it is connected to apc ups so this should not have happened but it did and i don't know why it did and as usual after an unclean shutdown server started automatic parity check it was all running fine until just now for some reason disk 3 started throwing read and write errors and now my disk 3 is disabled and its contents are currently being emulated. please suggest how should i proceed ? unraid.local-diagnostics-20231129-2100.zip

been using since 6.12. this was mentioned in the changelog of 6.12.