Installation guide

Booting 4-33

When you boot from a VMScluster, the minimum boot command options

include the boot device, the device type, and its unit number. This is al-

lowed if options such as shadow set value, system root, and optional APB

or VMB parameters are zero.

Figure 4-9 shows sample VMScluster configurations. Logically, each DSSI

bus is equivalent to a small CI with a Star Coupler. The RF devices on the

DSSI are functionally equivalent to a combination of HSC and RA devices

on the CI. Sections 4.7.2–4.7.4 discuss sample CI boots, Section 4.7.5 dis-

cusses shadow set booting, and Sections 4.7.6–4.7.8 discuss sample DSSI

boots.