Installation guide

Glossary-4 SPARC Enterprise Mx000 Servers Glossary • March 2012

cold addition To add a FRU while the server is powered off. During cold addition, all

types of FRUs can be added.

cold replacement To replace a FRU while the server is powered off. During cold replacement,

all types of FRUs can be replaced.

configure A term used in Dynamic Reconfiguration (DR) to integrate a system board

which has been assigned to the domain’s OS, and put it into a usable state.

connect A term used in Dynamic Reconfiguration (DR) to electrically connect an

already-mounted system board. Connecting a system board may enable the

monitoring of that board.

core See CPU core.

Correctable Error (CE) A CPU, memory or I/O error that is correctable, usually by simply

attempting again the operation (such as a rewrite to memory) that

previously failed.

CPU chip A physical processor. An LSI chip on which a central processing unit (CPU)

is mounted

CPU core A segmented processing unit of the CPU chip. A virtual processor.

CPU Module (CPUM) A module containing one or two CPU chip(s).

CPU/Memory Board Unit

(CMU)

A unit consisting of a CPU memory board, memory, and CPU module, used

in the SPARC Enterprise M8000/M9000 server.

CPUM See CPU Module (CPUM).

Crossbar (XB) The switch ASIC controlling data transfer between the system controller and

I/O unit.

Crossbar Unit (XBU) The unit used to logically switch between the CPU/memory board unit and

I/O unit. The XBU is mounted only on the SPARC Enterprise M9000 server.

DAT digital audio tape.

DC-to-DC converter

(DDC)

The component that converts DC input into another voltage level.

DCL See Domain Component List (DCL).

DDC See DC-to-DC converter (DDC).