February 20, 20188 yr Author 4 hours ago, johnnie.black said: You'd need to connect all but one of the wrong disks to the original controller, then start the array to rebuild the remaining, when done, repeat the process one by one. OK so could I please confirm with you: ill connect 3 of the current 'wrong disks' back to the Adaptec, and with the 4th, do I leave it connected to the onboard SATA or completely disconnected? once I restart im assuming I'll see 7 online (green) drives and 1 wrong/missing? what should I do at that point?
February 20, 20188 yr Community Expert 1 minute ago, blade316 said: ill connect 3 of the current 'wrong disks' back to the Adaptec, and with the 4th, do I leave it connected to the onboard SATA or completely disconnected? 4th connected on the onboard controller 1 minute ago, blade316 said: once I restart im assuming I'll see 7 online (green) drives and 1 wrong/missing? yes 1 minute ago, blade316 said: what should I do at that point? assign the the wrong disk (if not yet assigned) and start the array to rebuild.
February 20, 20188 yr Author @johnnie.black ok I'll give that a go tonight after work .... thanks for all your help mate! ill post back after I've done it.
February 21, 20188 yr Author 11 hours ago, johnnie.black said: 4th connected on the onboard controller yes assign the the wrong disk (if not yet assigned) and start the array to rebuild. OK I've connected 3 of the 4 drives back to my Adaptec, left the 4th connected to my onboard SATA, and have started the rebuild on that drive. 6 days ..... FML! haha
February 21, 20188 yr Community Expert That's very slow, probably the same issue causing your performance issues, likely nothing there but grab the diagnostics during the rebuild so we can take a look.
February 21, 20188 yr Author 1 hour ago, johnnie.black said: That's very slow, probably the same issue causing your performance issues, likely nothing there but grab the diagnostics during the rebuild so we can take a look. Here's my diagnostics unraid-diagnostics-20180221-1923.zip heres a screen of the stats dashboard
February 21, 20188 yr Community Expert No errors on the logs, but during the rebuild there's heavy simultaneous write activity on two disks (disks 4 and 7), this explains the low speed, you should stop or at least severely limit array activity during the rebuild.
February 21, 20188 yr Author 49 minutes ago, johnnie.black said: No errors on the logs, but during the rebuild there's heavy simultaneous write activity on two disks (disks 4 and 7), this explains the low speed, you should stop or at least severely limit array activity during the rebuild. @johnnie.black Thanks so much for looking at the diags again .... the only thing thats currently happening on the server, is just watching a movie through Emby using my Roku, so the writes could have been the transcoding of the video. Could you tell me where exactly in the diags you saw this info about the writes?
February 21, 20188 yr Community Expert 1 hour ago, blade316 said: Could you tell me where exactly in the diags you saw this info about the writes? system\vars.txt diskload ( [sda] => 0 0 2576 80 [sdb] => 27448661 0 578064 345 [sdc] => 20212394 0 560295 219 [sdd] => 20290218 79872 569157 2065 [sdf] => 20212394 0 554050 27 [sde] => 20212394 0 554061 17 [sdg] => 20247210 146090 491120 139905 [sdh] => 20472490 228010 503797 122016 [sdi] => 0 20327082 212 311418 Read speed and all disks involved in the rebuild at around 20MB/s Write speed om the disk being rebuilt also around 20MB/s Extra write activity
March 3, 20188 yr Author @johnnie.black @SSD @jedimstr @Zonediver OK guys, so after nearly 2 weeks of waiting I have rebuilt finally removed all my drives one at a time from the Adaptec card, connected to my onboard sata ports and rebuilt each one. I just did the last one then, and its currently rebuilding. here's the kicker, all my drives have been rebuilding at speeds between 10-27Mbps .... yep that was a lot of waiting .... This last drive though is rebuilding at 125-145Mbps .... so it looks like it may have been some issue with the card .... also all my drives are sata3 drives, but I've only got two SATA3 ports and four SATA2 ports (which my four 4TB drives are connected to) and my two 8TB drives connected to my two SATA3 ports. So if I had all SATA3 ports, I'd probably get even faster speeds. Anyway, it looks like hopefully after this my performance degradation should be resolved, and also hopefully wont have the same issue if I choose to upgrade the motherboard as the drives sizes should be the same. I really want to thank all of you for your help, I couldn't have fixed this without your knowledge and assistance!
March 3, 20188 yr Community Expert Glad it's working better, SATA2 is enough for disks, for now only SSDs can use SATA3 extra bandwidth.
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