Chapter 2 Setting Up XSCF 2-155
Domain Hardware and Software Configurations
FIGURE 2-2 lists the hardware resources that configure a domain. XSCF manages the
hardware configuration of each domain in the server. The CPU and the memory
(DIMM) are installed in a CMU or MBU. The domain uses CPU, memory, and I/O
device logically divided as one system board.
FIGURE 2-2 Domain Component Hardware (In Midrange and High-End Servers)
Note – In the entry-level server, the number of domains is one, and the domain fully
uses the resources in the PSB
Note – FIGURE 2-3 is an XSCF-domain correlation diagram. XSCF enables domain
configuration control and DR function control by using DSCP interface and SCF
interface for XSCF-domain modules (control program) communication.
CMU/MBU
IOU
PSB
I/O
device
I/O
device
CPU CPU
Memory
Memory
CPU
Memory
CPU
Memory
I/O
device
I/O
device
DomainID X (LSB/XSB)
System
...
Domain DomainID X
XSCF
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