3-2 SPARC Enterprise M8000/M9000 Servers Overview Guide • April 2007
3.1.1 Domain Management
In the SPARC Enterprise M8000/M9000 Servers servers, a physical system board
(PSB) can be logically divided into one part (no division) or four parts by a
partitioning function unique to the system.
A PSB that is logically divided into one part (no division) is called a Uni-XSB, and a
PSB that is logically divided into four parts is called a Quad-XSB.
The physical unit configuration of each divided part of a PSB is called an extended
system board (XSB).
In the SPARC Enterprise system, a domain can be configured with any combination
of these XSBs.
3.1.2 PCI Hot-plug
SPARC Enterprise M8000/M9000 servers support insertion and removal of PCI cards
for specific PCI-Express and PCI-X hot-plug controllers. Before removing the PCI
card, be sure to cancel the settings and isolate the card by using the Solaris OS
cfgadm(1M) command, and make sure that the card is physically removable.
For details of PCI hot-plug, see the SPARC Enterprise M4000/M5000/M8000/M9000
Servers Administration Guide.
3.2 XSCF Firmware Function
The XSCF firmware is a System Control Facility including a dedicated processor that
is independent from the processors in the server. This section describes XSCF
firmware features and provides an overview of XSCF firmware functions.
3.2.1 XSCF Features
The XSCF is firmware that is preinstalled, and operates on the XSCFU as standard
equipment. As long as input power is being supplied to the server, the XSCF
constantly monitors and manages the server even if the power to domains is turned
off. In addition, the XSCF provides a user interface from which users can operate
and manage the server.
