instead of rebooting. If the reconfig fails, fail through to reboot.
A reconfig will "halt" the current vnodes (or remove ones that are no
longer assigned to the node) reconfig the pnode, and then restart the
vnodes that are still assigned to the node (or create new ones for
newly assigned vnodes). A halt stops the vnode, but leaves the
vnode filesystem intact.

Not bothering to reconfig individual vnodes yet since thats pretty
much like a reboot of a vnode. Difference in time is tiny.

Lbs