NEX-2972 bad free at checkauth+0x1a2()
Reviewed by: Jan Kryl <jan.kryl@nexenta.com>
Reviewed by: Josef 'Jeff' Sipek <josef.sipek@nexenta.com>
NEX-2974 cannot exec from hsfs since illumos 5405
NEX-2690 NDMP V4 required to have Record size is persistent between mover connections and state transitions