Glossary

A

AC input filter

A server power cord AC receptacle.

B

BoB

Memory buffer on board. An ASIC on a CMU board that transfers data between a DIMM and a CMP.

Bounded PDomain

A type of PDomain which is limited to one DCU. A Bounded PDomain will typically exhibit higher performance as all resources are local to the single DCU. Bounded PDomains are not subject to SSB failure. Bounded PDomains can contain up to eight CMPs.

See also PDomain, CMP, and SSB.

C

CAR

Label of the PCIe hot-plug carrier.

CFM

Cubic feet per minute.

CLK

Label for a clock board. The sever contains two dual-redundant clock boards.

CMP

Chip multiprocessing. Each CMU contains two CMP processors. The server can contain a maximum of 32 CMPs.

CMU

CPU memory unit. Each CMU contains two CMPs and two sets of DIMM slots.

D

DCM

Domain configuration management. DCM refers to the reconfiguration of boards in physical domains for Enterprise-class systems.

DCU

Domain configurable unit. Each DCU contains two or four CMUs and one IOU. The smallest building block for physical domains.

DHCP

Dynamic Host Configuration Protocol. Software that automatically assigns IP addresses to clients on a Transmission Control Protocol/Internet Protocol (TCP/IP) network.

DIMM

Dual in-line memory module.

E

EMI

Electromagnetic interference.

EMS

Express module SAS. Each EMS contains two 10GBASE-T network connections and provides access to four hard drives on the server.

ESD

Electrostatic discharge.

F

FMA

Fault management architecture. Generates fault indictments from the SP. FMA provides three system activities: error handling, fault diagnosis, and response.

FRU

Field-replaceable unit.

G

GB

Gigabyte. 1 gigabyte = 1024 megabytes.

GbE

Gigabit Ethernet.

H

HDD

Hard disk drive. In Oracle Solaris OS output, HDD can refer to hard disk drives or solid state drives (SSDs).

I

ILOM

See Oracle ILOM.

IOU

I/O unit. The server contains up to four IOUs, one for each DCU. Each IOU supports up to 16 PCIe slots, 8 10GBASE-T ports on 4 EMS modules, and 8 hard drives.

K

KVMS

Keyboard video mouse storage.

KW

Kilowatt.

L

logical domain

A virtual machine comprising a discrete logical grouping of resources that has its own operating system and identity within a single computer system.

L-L

Line-to-line. Line-to-line voltage is the voltage between any two phases of an AC generator.

N

NET MGT

The network management port on a SP.

O

OBP

OpenBoot PROM. Firmware that is installed on the server and provides an interface through which you can perform various diagnostic tasks.

Oracle ILOM

Oracle Integrated Lights-Out Manager (Oracle ILOM) firmware.

Oracle Solaris OS

Oracle Solaris operating system.

Oracle VTS

Oracle Validation Test Suite. An application that exercises the system, provides hardware validation, and identifies possible faulty components.

P

PCIe

Peripheral Component Interconnect Express.

PCIe hot-plug carrier

An enclosure used to install and house PCIe cards in the server.

PDomain

Physical domain. Each PDomain is an independently configurable and bootable entity with full hardware domain isolation for fault isolation and security purposes.The maximum number of PDomains supported is four, which is equal to the number of DCUs. The minimum number of PDomains is one, which can be composed of all available DCUs within the system.

DCUs in a PDomain communicate with other DCUs in the server through the SSBs. If an SSB fails, the PDomain availability will be impacted. Bounded PDomains are limited to one DCU and are not affected by SSB failures.

See also Bounded PDomain, DCU, and SSB.

PDomain-SPP

The lead SPP of a physical domain. The PDomain-SPP manages tasks and provides rKVMS service for that physical domain.

POST

Power-on self test. A diagnostic that runs when the server boots.

PSDB

Power system distribution board.

PSH

Predictive self healing. An Oracle Solaris OS technology that continuously monitors the health of the server and works with Oracle ILOM to take a faulty component offline if needed.

R

rKVMS

Remote keyboard video mouse and storage.

RMS

Root mean square.

S

SAS

Serial attached SCSI.

SATA

Serial advance technology attachment.

scalability

Scalability is the ability to increase (or scale up) processing power in a server by combining the server's physical configurable hardware (see DCU) into one or more logical groups (see PDomain).

SER MGT

The serial management port on a SP.

SP

Service processor. For redundancy, the server contains two service processors, one being active and one on standby.

SPP

Service processor proxy. One SPP is assigned to manage each PDomain. SPPs monitor environmental sensors and manage the CMUs, memory controllers, and DIMMs within the DCU.

See PDomain-SPP.

SSB

Scalability switch board.

SSD

Solid state drive.

SSH

Secure shell. A program for logging in and executing commands on a system or service processor.

T

TB

Terabyte. 1 terabyte = 1024 gigabytes.

Torx

A type of screw head characterized by a 6-point star-shaped pattern.

U

UPS

Uninterruptible power supply.

V

VAC

Voltage alternating current.

VLAN

Virtual local area network.

VTS

See Oracle VTS.

W

WWN

World wide name.