syncing bhyve instances

[tech-lists]

Hello lists,

If I have two bhyve hosts, production [p] and reserve [r], and on both
there are identical guest[s] [1] and [2], what is the best way to sync
the guests? What's the best tool?

1. would syncing the guests from the host work? (in other words, running
some kind of tool like say rsync on the host work?). What about the
internal state of the guest? Could rsync account for changes in its
internal state?

2. or would it be better to run a tool like rsync inside each guest?

3. is there a better tool for this than rsync?

thanks,
-- 
J.