March 13, 20251 yr Hi, I have a Dell R720 with a 4x20TB RaidZ1 ZFS pool. The server has 192GB of RAM and I tweaked with a zfs.conf file in the modprobe.d folder to let ZFS use 175GB. The system and docker RAM usage on top of the 175GB usage gave me 8GB free RAM. After that I felt the Unraid GUI was very slow and it could take up to 30 seconds to load a page. How come, with still enough RAM left that it was feeling sluggish? I changed the zfs config now to use 150GB and now the server if fine, do I know that it had to do with this setting but I am curious if something else uses RAM that the GUI doesn't show?
March 14, 20251 yr Community Expert Try this: https://docs.unraid.net/unraid-os/release-notes/7.0.0/#excessive-flash-drive-activity-slows-the-system-down And if it doesn't help, post the diags when you get the slow GUI.
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