Rand

Moving the tdarrdb directory off the cache pool fixed it for me. If it sits directly on the array or on a unassigned drive then it's only writing about 4KB/sec. I have no idea why this fixed it.

I also experienced this same issue with my two Samsung_SSD_840_EVO_250GB drives that I had in BTRFS RAID1 for my cache pool. Large file transfers would cause insane iowait. System load would shoot up to 60-80. Docker containers and the Unraid web-ui would become entirely unresponsive. Since moving the pool from raid1 to single, the issue seems to be gone. With 6.9 reportedly having the option for multiple cache pools, I would really like to revisit the option for a mirrored cache pool.

I'm having an issue where this container is constantly writing about 2Mbyte/sec, even when idle. No workers are currently running, they only run in the middle of the night. When I stop this container, the writes to the cache pool are anywhere from 0 to 300Kbyte/sec. While tdarr_aio is running, it is anywhere between 1.8-2.4Mbyte/sec. Any idea what could be causing this?