The virtual hard disk of one of my VPS has been enlarged, and I want to create a new ZFS slice using the extra space, but I couldn't be able to perform that.
# gpart add -s 10G -t freebsd-zfs da0
gpart: Invalid argument
# gpart show
=> 63 31457160 da0 MBR (15G)
63 10474317 1 freebsd [active] (5.0G)
10474380 20982843 - free - (10G)
=> 0 10474317 da0s1 BSD (5.0G)
0 9216000 1 freebsd-ufs (4.4G)
9216000 1258317 2 freebsd-swap (614M)