- Some options are per-volume. (For example, "options nosnapdir off" is now "vol options vol0 nosnapdir off".)
Note that the per-volume options are persistent; their values are recorded in the file system "fsinfo block". Thus, for example, you don't have to update "/etc/rc" to put
vol options vol0 nosnapdir off
in. It'll *work* if you put it there, but it'll just overwrite the persistent setting on every boot, and probably overwrite it with the value it already has, on most boots.
"options nosnapdir off", and other options that are now per-volume, continue to work *if* you have a one-volume system, but "options XXX YYY" gets mapped to "vol options {one-and-only volume} XXX YYY", and is thus persistent.