Only change settings if you know what you are doing!
Here you can add settings to your /etc/sysctl.conf.
The /etc/sysctl.conf file is read in when the system goes into multi-user mode to set default settings for the kernel.
If you enable “Tuning” under System | Advanced, XigmaNAS enables some of this settings to tune your XigmaNAS server.
The following example add
kern.logsigexit=0 to /etc/sysctl.conf
The result is that logging of fatal signal exits (e.g. sig 11) is disabled.
In screenshot below we see vfs.zfs.vdev.scrub_min_active been added