November 27, 20196 yr I don't know exactly when this problem started, but my build and configuration has remained the same for almost 1.5 years. The only thing that's changed recently is I added a pass-through GPU. Unraid 6.7.2 2x Xeon 48gb memory Intel 4 port nic 1050ti 2x SSD, 6x HDD pfsense in VM, no other VMs Every time I use something like qbittorrent, or do anything that reads/writes to the array I get a sharp spike in CPU usage. Sometimes IOWAIT shoots up to 40-50%, which brings everything to a crawl. I can also replicate this issue simply using SMB transfers. Any ideas what this might be or how to fix it without pulling out hardware one by one?
November 27, 20196 yr Community Expert There is a known issue with the 6.7.2 release that can cause this type of problem. The issue appears to be fixed in the 6.8.0 RC series (currently up to RC7) so you might want to consider trying that release.
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