Does ZFS use always such 'high' RAM

[pos-sudo]

Dear,

I installed proxmox on a dedicated server with 128Gb RAM. After a couple days a saw that my RAM was filled over 60% (almost 70%) with only 3 VMS each 4GB. Therefore I was searching on the internet and read that ZFS uses 'free' RAM to cache. I was wondering if this is a static behaviour from ZFS? Will I be in trouble if I want more VM's or will ZFS reduce the amount of RAM when I need more for my (new) VMS.

Thanks in advanced.

Kind regards,

 

[Dunuin]

By default ZFS is using from 1GB up to 50% of your hosts RAM for caching. Under normal circumstances ZFSs ARC will shrink if the host needs the RAM for something else.

 

[pos-sudo]

By default ZFS is using from 1GB up to 50% of your hosts RAM for caching. Under normal circumstances ZFSs ARC will shrink if the host needs the RAM for something else.

Hi, thank you for your reply, I'm glad to hear that