Figure 35: Sequence Of Post, Obp And Solaris Startup After Switching On Or A Reset; Obp - Fujitsu Siemens Computers SX series User Manual

Functions of the System Console Software (SCS)
4.3.2.1

OBP

OBP mode only applies to one partition. It is used, for instance, to perform an offline backup.
After a partition is switched on or reset, a POST sequence (POST = Power On Self Test) is
started. This tests the hardware and checks the hardware configuration. The OBP
(OBP = OpenBoot
Self test diagnostic
Hardware configuration
Probe PCI devices
OS booting OBP cmd's

Figure 35: Sequence of POST, OBP and Solaris startup after switching on or a reset

If the mode selector is set to Unlock or Maintenance, the following OBP prompt appears:
{0} ok
If the mode selector is set to "Lock", the partition must be terminated with init 0. This
automatically takes you into the OBP mode.
From this mode, Solaris can be started with the relevant command. Specific OBP
commands can also be entered here.
Example of screen outputs until the OBP prompt appears
POST Sequence 03
...
POST Sequence 1a
POST Sequence Complete
Fujitsu Siemens PRIMEPOWER800 2-slot 4x SPARC64 IV 675MHz
OpenBoot 3.14.7-1, 4096 MB memory installed
Ethernet address 0:0:e:25:5:22, Host ID: 80f30522.
{0} ok
88
TM
PROM) is then called up. This checks the PCI devices.
Power-On / Reset
of the partition
POST
OBP
OS Solaris
Functions of the System Management Console
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