I have migrated from the unionFS to MergerFS, but it seems I have very very slow move speed from like sonarr or radarr to my Media folder. (Taking 3 minutes to move 4 GB file), so i think it is somehow Copying instead of Moving.
Also if I do the same thing from within the Sonarr docker it also takes this long to MOVE a file.
I'm using the following MergerFS command:
mergerfs /mnt/user/local/google_vfs:/mnt/user/mount_rclone/google_vfs=RO:/mnt/user/media=RO /mnt/user/mount_unionfs/google_vfs -o rw,async_read=false,use_ino,allow_other,func.getattr=newest,category.action=all,category.create=ff,cache.files=partial,dropcacheonclose=true
It seems sonarr is really taking long time to move from the /data to /media in the Sonarr docker.
/data <-> /mnt/user/mount_unionfs/google_vfs/downloads/
/media <-> /mnt/user/mount_unionfs/google_vfs/
I can see that the SSD cache is hard at work when it is moving files.