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Domain Configuration Terms (Continued)
TABLE 2-23
Term
Description
XSB status
The power status and the diagnostic, assignment, and integration conditions of a system
board belonging to a domain are displayed for each XSB. The progress of changes in
conditions can be found by switching the domain configuration. The XSB status
information can be referred to with showdcl(8) and showboards(8). For details on the
XSB status, see
Fault code
Indicating that an error occurred in an XSB. For details on the fault codes, see
System board pool
The state of system board that does not belong to any domain. A system board that is the
system board pool state can be added to a domain where a CPU or memory has a high
(SP)
load. When the added system board becomes unnecessary, the system board can be
returned to the system board pool state.
Note – (1) DR: Abbreviation for Dynamic Reconfiguration. This function
dynamically adds a system board to a domain or deletes it from a domain. For
details on DR, see the Dynamic Reconfiguration User's Guide.
Note – (2) Specified or displayed by the DCL. When the system board uses kernel or
I/O, for details of the DR operation and notation, see the Dynamic Reconfiguration
User's Guide.
Note – (3) Although a CMU with two CPUMs can be configured into Quad-XSB
mode on an M8000/M9000 server, be aware of the following points:
- Only an XSB with at least one valid CPUM and memory can be configured
into a domain.
- Memory within an XSB that does not have a CPUM becomes unavailable.
The result is loss of access to half the installed memory on the CMU.
- You can add DIMMs to a CMU, but you cannot reconfigure memory resident on a
CMU to the valid XSBs to prevent that memory from becoming unavailable.
- The server generates a "configuration error" message for those XSBs that do not
have a CPUM and memory.
For details of components such as CPU/Memory Board unit, I/O unit, and
Motherboard unit, see the Service Manual for your server.
TABLE 2-24
.
TABLE 2-27
lists the number of domains and XSBs for each system.
TABLE 2-27
Chapter 2
Setting Up XSCF 2-149
.
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