I've been noticing that if I kick off a manual mover process that my Plex server becomes unresponsive until the mover is complete. Now normally this doesn't affect me because I have the mover scheduled to run once a day at 8am when I never use the server. However, I started to investigate why this was happening and it's not adding up. First off, none of my plex (and other dockers) appdata is on cache or my array drives (all appdata is on an SSD set as an unassigned disk). Also, the data that was being moved to the array was not being moved to the disk where the current media I was streaming was located. I saw nothing in the syslog other than the mover activity. My system setup is as follows:
Array: 8x10TB WD Gold drives (dual parity)
Cache: 1TB Micron 5100 PRO Enterprise SSD
Appdata: 256GB Samsung NVMe SSD
CPU: Xeon D-1541
RAM: 64GB
I'm kind of at a loss as to why the mover would be having any type of performance impact on my Plex server.