HP XP Continuous Access Software - Manual (Page 242)

242 HP StorageWorks Disk Array XP RAID Manager: User’s Guide
Flags
The command sets the following four flags each for the guarding types:
Type INQ RCAP READ
WRITE
Inv 1 1 1 1
Sz0 0 1 1 1
Rwd 0 0 1 1
Wtd 0 0 0 1