I know this has been discussed and i am very much aware that this is unsupported on the freenas about HA.
still intriguing read on the freebsd site… Highly Available Storage (HAST)… https://www.freebsd.org/doc/handbook/disks-hast.html
anyone tried this implementation on freenas in a lab set up. Karl wrote in his blog a while ago ( https://karl.idv.hk/2012/03/configure-highly-available-storage-on-freenas/). I believe CARP and HAST are available on the freenas through cli…its just they are not exposed on the GUI.
Tom wont like this idea … me neither for production but as a lab set up…!