Multiprocessor Bootstrapping; Boot Devices; Supported Boot Devices - DEC 4000 AXP Service Manual

2.4.4 Multiprocessor Bootstrapping

Multiprocessor bootstrapping differs from uniprocessor bootstrapping primarily
in synchronization between processors. In a shared memory system, processors
cannot independently load and start system software; bootstrapping is controlled
by the primary processor.
DEC 4000 AXP systems always select CPU0 as the primary processor. The
secondary processor polls a mailbox for a start address.

2.4.5 Boot Devices

The supported boot devices shown in Table 2–8 are determined by the console's
device drivers.
Table 2–8 Supported Boot Devices
Adapter Bus
I/O module Ethernet
I/O module DSSI/SCSI
I/O module DSSI/SCSI
Device Name
TGEC EZAn
Disk DUan/DKan
Tape MUan/MKan
Power-On Diagnostics and System LEDs 2–37