Today I learned

For new installations starting with Proxmox VE 8.1, theARC usage limit will be set to 10 % of the installed physical memory, clamped to a maximum of 16 GiB.

Hello, this is my situation now, can I limit memory with this command? nano /etc/modprobe.d/zfs.conf options zfs zfs_arc_max=4294967296

It is good to use at most 50 percent (which is the default) of the system memory for ZFS ARC to prevent per- formance shortage of the host.

Limit ZFS Memory Usage​ ... ZFS uses 50 % of the host memory for the Adaptive Replacement Cache (ARC) by default. For new installations starting ...

FYI, since v8.1 (Nov. 2023) new install limit zfs arc size to 10% of the host ram.

Limit ZFS Memory Usage ZFS uses 50 % of the host memory for the Adaptive Replacement Cache (ARC) by default. For new installations starting with Proxmox VE 8.1, the ARC usage limit will be set to 10 % of the installed physical memory, clamped to a ma

ZFS uses 50 % of the host memory for the Adaptive Replacement Cache (ARC) by default. Allocating enough memory for the ARC is crucial for IO performance, so ...

The new ZFS node has 32GB of RAM and only 4 VMs that use 1.5GB, 2GB, 2GB, and 12GB of RAM, for a total of 17.5GB. However, the Summary page of ...

Limit ZFS Memory Usage​. ZFS uses 50 % of the host memory for the Adaptive Replacement Cache (ARC) by default. Allocating enough memory for the ARC is crucial ...