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Hi @spirit, Unfortunatelly even after changing the cache to none, the buff/cache again reached a high number and no longer possible to boot a new vm even if there is free memory. total used free shared buff/cache available Mem: 47G 22G 458M 80M 24G 24G Swap: 30G 4.1G 26G Anyone else has an...

Hi @spirit, Thank you for your answer. Yes, I had write back cache enabled on Windows VM. I have changed to cache=none as you proposed. The Windows VM are used as CI, so lots of build/write. It is possible that it is the reason of the cache size. Otherwise all you VM disks use zvol. I will...

Hi, My proxmox have 47G Mem with 30G swap. It is using a local ZFS pool. After a time, the buff/cache of the node totally use all the free memory (unused by current VM) and makes impossible to start a new VM or run a backup. From what I understood, backup is the same as starting a VM. The VM...