How can I set zfs module parameters on TrueNAS Core?

[Rabinovitch]

For example, I would like to tune cat /sys/module/zfs/parameters/zfs_arc_max, but currently it says

root@lenstor2[~]# cat /sys/module/zfs/parameters/zfs_arc_max
cat: /sys/module/zfs/parameters/zfs_arc_max: No such file or directory
root@lenstor2[~]#

The exact thing I would like to do is:

root@lenstor2[~]# echo 1 | tee /sys/module/zfs/parameters/zfs_scan_suspend_progress
tee: /sys/module/zfs/parameters/zfs_scan_suspend_progress: No such file or directory
1

 

[Patrick M. Hausen]

On the command line:

Code:

sysctl vfs.zfs.scan_suspend_progress=1

To configure permanently navigate to System > Tunables in the UI and create an entry, probably of type "SYSCTL".

To get a list of all global parameters on FreeBSD:

Code:

sysctl vfs.zfs