trurl Posted December 24, 2018 Share Posted December 24, 2018 Read errors won't disable a disk, only write errors. Do you have a disabled disk? If so you should rebuild it. Go to Tools - Diagnostics and attach the complete diagnostics zip file to your next post. Quote Link to comment
Taddeusz Posted December 24, 2018 Share Posted December 24, 2018 Have you tried swapping cables on that drive that’s getting UDMA CRC errors? That’s usually the cause. Either a lose or bad cable. Quote Link to comment
comet424 Posted December 24, 2018 Author Share Posted December 24, 2018 Turl to your comment what i mean is parity wasnt running or it did i forget the notification but what i mean is the parity drive doesnt save copy of the broken drive till it runs it parity check right as i copied over a couple videos to my server.. and a few hours later i went to watch it.. but it wasnt there where i copied it so i access tower/ in the gui and it said that same drive failed again.. so i not sure where the files went to and ya i mean i know parity has no files just a 1 or 0 calculation to emulate i just used it as a reference i ordered a raid card but who knows when it will come Quote Link to comment
comet424 Posted December 24, 2018 Author Share Posted December 24, 2018 i did end up swapping cables but ill try it again they have the Locks on them but ill try again its same disk 2 and its disabled tower-diagnostics-20181223-2159 (1).zip here is the diagnostic file from last night like i mentioned i only noticed disk 2 failed when i couldnt find the file i had copied to the array where ever it went to Quote Link to comment
comet424 Posted December 24, 2018 Author Share Posted December 24, 2018 and i wasnt able to check smart it wont let me this time.. so i didnt wanna touch reboot or anything to the server till i ask you guys first Quote Link to comment
JorgeB Posted December 24, 2018 Share Posted December 24, 2018 I didn't really understand all you were saying but any data copied to the array should still be there, either on one of the other disks or on emulated disk2, in any case disk2 dropped offline, most likely from a bad SATA cable, replace it and it should come back online, then post new diags to confirm SMART is OK, Quote Link to comment
trurl Posted December 24, 2018 Share Posted December 24, 2018 12 minutes ago, comet424 said: what i mean is the parity drive doesnt save copy of the broken drive till it runs it parity check right The parity drive is updated AT THE SAME TIME any writes occur in the data array. It DOES NOT wait until the parity check. All parity check does is check that parity is still correct, but parity is always up-to-date. And parity doesn't have any copies of any files from any disks. That isn't how parity works. How could parity possibly have a copy of the data from however many disks you have? It doesn't have the capacity. Do what johnnie said. Quote Link to comment
comet424 Posted December 24, 2018 Author Share Posted December 24, 2018 ah ok ill go pick a new cable up today as my current ones are too short.. well thats why i confused i copied the file and it wasnt anywhere on the array i scanned entire locations nothing so im like what the heck.. and when i logged into the tower i found disk 2 was dropped off.. figured it was lost? but ill get back to you when i get the new cable and smart info i appreciate it 🙂 Quote Link to comment
trurl Posted December 24, 2018 Share Posted December 24, 2018 Just now, trurl said: That isn't how parity works. If you want to know how parity does work (I recommend), see this wiki: https://wiki.unraid.net/UnRAID_6/Overview#Parity-Protected_Array Quote Link to comment
comet424 Posted December 24, 2018 Author Share Posted December 24, 2018 yes i know parity doesnt save any data i said that above.. i said its emulated as for parity update ok i figured it was only updated once a week that i have it set at.. and yes i going to do that what john said i replied before you replied with your answer i appreicate all the help ill get back to you guys later... just wonder where the files went Quote Link to comment
trurl Posted December 24, 2018 Share Posted December 24, 2018 1 minute ago, comet424 said: as for parity update ok i figured it was only updated once a week that i have it set at.. No it happens immediately as I have said. And weekly parity checks is a lot more often than most people do it. Since you know now that parity checks is not how parity gets updated, you can do them less frequently. Most people do it monthly, but some even less frequently than that. Parity should be correct all the time. It is just a check. 5 minutes ago, comet424 said: and when i logged into the tower i found disk 2 was dropped off It shouldn't be necessary to open the webUI to know that you have a problem like this. You MUST setup Notifications to alert you immediately by email or other agent whenever Unraid detects a problem. People who don't know when they get the first problem are people who wind up with multiple problems they can't recover from. As for the "lost" file, who knows? It has nothing to do with any of this. Probably we will never find out. Possibly some misunderstanding is to blame. Quote Link to comment
comet424 Posted December 24, 2018 Author Share Posted December 24, 2018 oh ok i left the parity check to default so it was doing it every sunday... ok ill set it to check once a month then.. it cant hurt .. ah i never setup email for notification ill set it up.. i usually have tower/ always loaded up as i noticed... if i set Update Plugins and Dockers setting if i set update everyday and Not to send notifications it still sends notifications... but ya who knows what happened to the file..no big deal.. i just didnt know parity is updated at same time as i copy files.. thanks ill get back to you guys with the smart once i go buy a new cable today.. Merry Christmas if i dont get back to you guys till after christmas 🙂 and thank you Quote Link to comment
comet424 Posted December 29, 2018 Author Share Posted December 29, 2018 ok so i replace the cable i hot glued the cables and reconstructed disk 2 (12tb) went fine so i been downloading to my array and copying files to and from the array.. and yesterday Parity Check started even though i set to every 4 weeks on a sunday.. so not too sure why it started but ok this morning i check the tower on the parity check... and Drive 2 is down again Parity Check cancelled... when parity check cancels do i loose any data? soo what could it be is it motherboard? is it the hot swap is it it just the hard drive are you guys able to figure it out from the reports? i ordered that LSI raid card but that doesnt come sometime after Jan 11 if im lucky Quote Link to comment
JorgeB Posted December 29, 2018 Share Posted December 29, 2018 28 minutes ago, comet424 said: when parity check cancels do i loose any data? No, though scheduled checks should be non correcting, in some cases a correcting check can corrupt parity data when there are issues on a data disk. You need to start swapping things around to rule out as many as possible, cables, controllers, PSU, etc. Quote Link to comment
comet424 Posted December 29, 2018 Author Share Posted December 29, 2018 well i know i remember seeing check mark for correcting i dont see it now i guess cuz the drive went down.. i have a spare hot swap hooked up so i i slide it in there and do reconstruct should rule out that hot swap... how do you rule out psu or the controller.. so i could lost some data then cuz of the check mark it had for correcting?? should i is there a setting to turn that off corrections? i copying files off my array for now so thats going to take 16 hours.. so ill swap out the drive into another bay i guess unraid cant tell if controller goes bad? Quote Link to comment
comet424 Posted December 29, 2018 Author Share Posted December 29, 2018 and me having BTRS file system wouldnt compromise this issue does it? as i seen so many people set to XFS and some like the BTRS so i set it to BTRS or should i convert back to XFS i best get some more hard drives for my 2nd unraid and make backups of the first server at this rate Quote Link to comment
trurl Posted December 29, 2018 Share Posted December 29, 2018 14 minutes ago, comet424 said: i best get some more hard drives for my 2nd unraid and make backups of the first server at this rate You absolutely MUST have backups of anything important and irreplaceable. Parity is NOT a substitute for backups. If you don't have backups of anything important and irreplaceable, then that should be your first priority, before trying to fix your hardware problems. Quote Link to comment
comet424 Posted December 29, 2018 Author Share Posted December 29, 2018 i had it but since since i moved to unraid from WHS it was showing bad drives so i just got new big hard drives and then moved the files to unraid... and then was junking the old drives.. and any that failed the preclear unraid program but ill back up to some externals i have kicking around.. thanks for the input most appreciative Quote Link to comment
JorgeB Posted December 29, 2018 Share Posted December 29, 2018 44 minutes ago, comet424 said: so i could lost some data then cuz of the check mark it had for correcting?? Possible but unlikely, diags would show. 45 minutes ago, comet424 said: should i is there a setting to turn that off corrections? Yes, on the schedule settings. 43 minutes ago, comet424 said: and me having BTRS file system wouldnt compromise this issue does it? No, btrfs helps in this case, since if there are doubts you can run a scrub to confirm data is intact. Quote Link to comment
comet424 Posted December 29, 2018 Author Share Posted December 29, 2018 ok ill post the diagnostic file i havent turned off computer or array.. as i still copying files around.. so should the corrections thing always be off? when does it come in handy? and i read about scrub but never knew what people talking about or how to use it i really didnt think id ever have issues with new hard drives.. but then again this year is the first time i used unraid or heard of it.. i been a WHS user for 15 yrs or so and windows so i never noticed issues before.. so once my copying is done in 16 hours i gonna back up my important files to the one external hard drive i have with some spare space... never thought id ever have troubles go figure lol here is the diagnostic file tower-diagnostics-20181229-0901.zip Quote Link to comment
Taddeusz Posted December 29, 2018 Share Posted December 29, 2018 I had bought one of these removable drive cages: Rosewill RSV-SATA-Cage-34. A couple years later I was all of a sudden getting a bunch of UDMA CRC errors. I swapped the cable with no change. I decided to eliminate the drive cage and my UDMA CRC errors went away. I don't know why it was causing problems all of a sudden since it's a passive backplane. Quote Link to comment
comet424 Posted December 29, 2018 Author Share Posted December 29, 2018 ya mines passive i guess too.. its this one i have an antec computer case and filled it with these modules https://www.buyanything.co.za/ch-adfhsm2 but ill try a different one as i got another space.. just frustrating i tell ya.. and i cant get these modules anymore... because antec doesnt make it and only place you can buy it now are computer places in South Africa and they dont ship to canada.... soooo gotta use what i got and try to upgrade i like the rosewell 12 bay hot swap computer case and this is screen shot i took too Quote Link to comment
JorgeB Posted December 29, 2018 Share Posted December 29, 2018 Nothing was written to parity, so no corruption, disk2 is also likely fine but since it dropped offline SMART it's not visible. Quote Link to comment
comet424 Posted December 29, 2018 Author Share Posted December 29, 2018 ah ok thats great news then.. and ill make a backup of the other stuff.. i need backups and then ill try a different slot for the disk 2 to rule out of its the hot swap or controller or ill pull cable off the hot swap and stick it on a different hot swap then can rule out if its controller or hot swap module Quote Link to comment
comet424 Posted January 7, 2019 Author Share Posted January 7, 2019 (edited) @Taddeusz i got the LSI 9210-8I card Booting up computer sees it Windows sees it... the LSI software doesnt.. i tried the DOS method then i get PAL error then i did the Shell EFI boot up and i cant seem to figure how you find the software on it the sas2flash i been googling and still cant figure it out.. people can just sas2flash -list or listall and shows but for me i cant even get it to show an adapter and this is the card i bought https://www.ebay.com/itm/LSI-SAS-9210-8i-8-port-6Gb-s-PCIe-RAID-SATA-Controller-card-2pcs-SFF-8087-cables/172864804594?ssPageName=STRK%3AMEBIDX%3AIT&_trksid=p2060353.m2749.l2649 how do i do this? Edited January 7, 2019 by comet424 Quote Link to comment
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