Comment on Improve very slow library scans on Jellyfin 10.11 / 12 on spinning media
ragingHungryPanda@piefed.keyboardvagabond.com 2 days ago
I run the DB on the SSD and media on the hdds and haven’t had any issues, but I don’t have a huge library though. However, things are generally speedy. I thought the higher record sizes were recommended for media, not the DB? but if it worked for you, that’s good
64K is generally small recordsize. For media they recommend 1M. My db was sitting on the default 128K recordsize and perforned fine on 10.10. It doesn’t matter much for reads because ZFS keeps it in RAM and if it gets evicted it goes into SSD cache (l2arc). But for writes the cache wouldn’t help unless I disable sync which risks data loss. I don’t think 10.10 did much writes during lib scan so write perf only mattered when something changed.