Page 1 of 1

ZFS Memory useage

Posted: Tue Jul 24, 2018 5:18 pm
by dhenzler
I have a ZFS GhostBSD system which I really like. However when starting the software management tool, it would come up with a memory availability issue for a couple seconds then clear, and proceed to work normally.

Curious about this, and knowing that ZFS uses system Ram for caching I decided to add more memory... moving from 8GB to 16GB and running it at 1600MHz.

System seems snappier, however the ram useage is nearly 80% at times,and is generally hovering at 66% or more. I searched for some GhostBSD compatible command to limit RAM use. However have not found any. Wondering if I should try some Linux or Solaris11 commands?

HELP !

Re: ZFS Memory useage

Posted: Tue Jul 24, 2018 8:22 pm
by ericbsd
add vfs.zfs.arc_max="4G" in /boot/loader.conf that will limit arc to 4GB of ram.

Re: ZFS Memory useage

Posted: Tue Jul 24, 2018 9:25 pm
by dhenzler
just curious what size RAM is required per 500 Gigabite of HD

Re: ZFS Memory useage

Posted: Tue Jul 24, 2018 10:28 pm
by ericbsd
It is 1GB of RAM per 1TB of HHD.