FreeNAS 9.2, based on FreeBSD 9.2 included performance improvements and introduced a REST API for remote system administration. FreeNAS 9.3, based on FreeBSD 9.3 introduced a ZFS-based boot device, an initial Setup Wizard and a high-performance in-kernel iSCSI server.

Sep 16, 2014 How to install FreeNAS 11.1 Mar 05, 2018 FreeNAS .ISO Windows Rufus Bootable USB Install Guide Jul 15, 2015 FreeNAS using Active Directory Wiki Dec 19, 2017

Jul 29, 2019

FreeNAS Documentation, Release 9.3-STABLE •LZ4 compression is used on the boot pool in order to increase space for boot environments. •Support for hot spare drive replacement has been added.

Software-update: FreeNAS 9.2.0 - Computer - Downloads

Nov 19, 2014 zfs - What is a "hot spare" on FreeNAS? - Server Fault Yes, that is exactly what a hot spare is. The hot spare drive would occupy a drive bay and could be assigned to one or more data pools (global spare), and would automatically start a rebuilding process in the event of a failed disk.