Example: R1 (McDermott)
If the most current active context is distributing massbus devices, &
there is a single-port drive that hasn’t been assigned to a massbus, &
there are no unassigned dual-port disk drives, &
the number of devices that each massbus should support is known, &
there is a massbus that has been assigned at least 1 drive that should
support additional disk drives, &
the type of cable needed to connect the disk drive to the previous
device on the massbus is known
Then assign the disk drive to the massbus.