1.6.2. ZFS Set Arc-Cache Limit¶
To set the ZFS Arc-Cache Limit
$ nano /etc/modprobe.d/zfs.conf
EPYC Server Example¶
Edit the zfs.conf file to use approximately 1 GB of RAM per TB of storage.
options zfs zfs_arc_max=68719476736
Generic Example¶
Edit the zfs.conf file to use approximately 1 GB of RAM per TB of storage.
options zfs zfs_arc_max=x (in bytes)
$ cat /proc/spl/kstat/zfs/arcstats |grep c_
Then update initram
$ update-initramfs -u