September 23, 20196 yr Hi, I've recently build a new server with some brand new disks and some older SAS drives I got for cheap. I wrote to all of them from my old server through ftp with problems or errors. 5.5TB in total. I then tried to do a parity check and all "hell" broke those with disk read errors. I was extremely confused as to why, so I restarted the server. Tried downloading files from all of the afflicted disks. No errors. But as soon as I start the parity check I get errors for days and I have no clue why. I hope you can help! In advance thanks! dservermain-diagnostics-20190923-2050.zip
September 23, 20196 yr What are the smart Stats on disk 5 and 6 Also could be a bad controller if all start failing. Edited September 23, 20196 yr by halfelite
September 24, 20196 yr Author 5 hours ago, halfelite said: What are the smart Stats on disk 5 and 6 Also could be a bad controller if all start failing. Smart Stats are included in the diagnostics file and it's all the disks, not just 5 and 6 that fail. Disk 1 (new 4TB Seagate) doesn't provide errors.
September 24, 20196 yr Community Expert Run a long SMART test on both disks, but more likely a controller/connection/power problem
September 24, 20196 yr Author 3 hours ago, johnnie.black said: Run a long SMART test on both disks, but more likely a controller/connection/power problem I'll run the the extended smart test, but how do I fix/test for the other? It's a Dell Perc H200 Raid card (JBOD) and a dell r720 with the backplanes connecting to the disk themselves.
September 24, 20196 yr Community Expert Check/replace cables, can also be the PSU, you'll need to test one thing at a time to rule them out.
September 24, 20196 yr Author And how would I test the controller (which I'm assuming to be the H200)? Although I doubt it's that since the new disks aren't spitting out errors!
September 24, 20196 yr Community Expert By using a different one, but controller would be last thing to try, cables and/or PSU are more likely, it can also be the backplane/expander.
September 24, 20196 yr Author Fair enough - I'll try to have a look. I just find it very weird with two redundant 750W PSU and the fully functioning disks being on the same expander as the "broken" ones.
October 2, 20196 yr Author I tried all of the above options to no avail and then I figured. Hell might as well try to reformat the disk. Turns out something went wrong when I last cleared and formatted the 5 900gig SAS disks and a data shuffle + reclear subsequent reformat fixed it and I now have 0 errors. Thanks for your help though!
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