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Hi everyone, I am currently running unRAID 7.x and using Docker to host many important services (Nextcloud, Jellyfin, Home Assistant). Recently, I noticed that when many containers write large data to the volume, especially when using overlay2 or aufs, the I/O performance shows signs of slowing down - access speed decreases, and latency increases when the cache disk has to transfer data to the array. Some things I tried: Moving appdata and docker.img to a separate SSD cache and sharing “cache only”. Changing Storage Driver from aufs to overlay2. Setting sync=no and reducing the inotify watch limit in the container. However, it is still not as “smooth” as before using unRAID 6.x. I want to ask you guys: Has anyone successfully optimized for a lot of containers used in a large system (20+ containers) on unRAID tanh? Do the filesystem settings (XFS, Btrfs) or cache configuration you are using significantly affect the overlay performance? Is there any plugin, script, or best practice you recommend to monitor and improve the I/O latency of containers in unRAID affected by the overlay? Looking forward to receiving practical sharing from the community to find the optimal settings for a heavy container system like mine. Thanks in advance! PolyTrack

Hi everyone, I am using unRAID 7.x and have some issues running CPU and I/O heavy Docker containers like Plex, HandBrake, and Nextcloud. Even though the CPU and RAM are still free, the container still lags, restarts randomly, or has slow I/O when reading and writing large data. I want to ask the community: What is the most effective way for people to use a CPU for containers on unRAID? Are there any tips to optimize I/O speed (NVMe cache, mover schedule, etc.)? Should I edit cgroup or daemon.json in Docker to improve performance? Is there anyone who is running a similar configuration but smoother? Please share. My configuration: unRAID 7.8.2 CPU: Intel i9-10900K (10 cores) RAM: 64GB Cache: NVMe Samsung 970 EVO 1TB Array: 4 x WD Red Pro 10TB Containers: Plex, HandBrake, MariaDB, Nextcloud Thanks everyone in advance! I will try the suggestions and update the results for everyone to refer to. among us online

Hi everyone, I'm having trouble with Docker on Unraid. After rebooting the machine, all containers run fine, but after a few hours, the Docker service stops, and the containers crash. I've tried deleting the image, rebuilding everything as instructed in a reference video, but the problem still persists. I've attached the diagnostic file for everyone to see, and I hope to receive guidance or troubleshooting experience from you. If anyone has encountered a similar situation or knows how to fix it, please share it with me! granny game