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Glossary: Dell™ OpenManage™ Server Administrator Version 6.0.3 User’s Guide

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Glossary

Dell™ OpenManage™ Server Administrator Version 6.0.3 User’s Guide


The following list defines or identifies technical terms, abbreviations, and acronyms used in your system documents.

authentication

The Server Administrator remote access controller has two methods of authenticating user access:

RAC authentication and local operating system authentication. RAC authentication is always enabled. Administrators can set up specific user accounts and passwords that allow access to the RAC.

Operating systems also require administrators to define different levels of users and user accounts; each user level has different privileges. Local operating system authentication on the RAC is an option for administrators who do not want to define one set of privileges for users in the operating system and a separate set of users and accounts for the RAC. If you enable local operating system authentication for the RAC, you enable any user with Administrator status on the operating system to log in to the RAC.

baud rate

A measurement of data transmission speed. For example, modems are designed to transmit data at one or more specified baud rate(s) through the COM (serial) port of a system.

BMC

Abbreviation for baseboard management controller, which is a controller that provides the intelligence in the IPMI structure.

BTU

Abbreviation for British thermal unit.

CA

Abbreviation for certification authority.

capability

Refers to the actions that an object can perform, or actions that can be taken on a managed object. For example, if a card is hot-pluggable, it is capable of being replaced while the system power is on.

CHAP

Acronym for Challenge-Handshake Authentication Protocol, an authentication scheme used by PPP servers to validate the identity of the originator of the connection upon connection or any time later.

CIM

Acronym for Common Information Model, which is a model for describing management information from the DMTF. CIM is implementation independent, allowing different management applications to collect the required data from a variety of sources. CIM includes schemas for systems, networks, applications and devices, and new schemas will be added. It provides mapping techniques for interchange of CIM data with MIB data from SNMP agents.

CMC

Acronym for Chassis Management Controller.

controller

A chip that controls the transfer of data between the microprocessor and memory or between the microprocessor and a peripheral device such as a disk drive or the keyboard.

control panel

The part of the system that contains indicators and controls, such as the power switch, hard drive access indicator, and power indicator.

cooling unit

Sets of fans or other cooling devices in a system chassis.

DBPM

Abbreviation for Demand Based Power Management.

DHCP

Abbreviation for Dynamic Host Configuration Protocol, a protocol that provides a means to dynamically allocate IP addresses to computers on a LAN.

DIMM

Acronym for dual in-line memory module. A small circuit board containing DRAM chips that connects to the system board.

DMTF

Abbreviation for Distributed Management Task Force, a consortium of companies representing hardware and software providers that develops and maintains standards for systems management of IT environments in enterprises and the Internet.

DRAC 4

Acronym for Dell™ Remote Access Controller 4.

DRAC 5

Acronym for Dell Remote Access Controller 5.

DRAM

Acronym for dynamic random-access memory. A system's RAM is usually made up entirely of DRAM chips. Because DRAM chips cannot store an electrical charge indefinitely, your system continually refreshes each DRAM chip in the system.

DSM SA Connection Service

Acronym for Dell Systems Management Server Administration. An application that makes Web pages available for viewing by Web browsers using the HTTPS protocol. See "Web server".

ECC

Abbreviation for error checking and correction.

Embedded Hypervisor

See Internal USB

EMC

Abbreviation for electromagnetic compatibility.

EMI

Abbreviation for electromagnetic interference.

EMM

Abbreviation for expanded memory manager. A utility that uses extended memory to emulate expanded memory on systems with an Intel386™ or higher microprocessor.

ERA

Abbreviation for embedded remote access.

ERA/MC

Abbreviation for embedded remote access modular computer. See modular system.

ERA/O

Abbreviation for embedded remote access option.

ESM

Abbreviation for embedded systems management.

Fibre Channel

A data transfer interface technology that allows for high-speed I/O and networking functionality in a single connectivity technology. The Fibre Channel Standard supports several topologies, including Fibre Channel Point-to-Point, Fibre Channel Fabric (generic switching topology), and Fibre Channel Arbitrated Loop (FC_AL).

firmware

Software (programs or data) that has been written onto read-only memory (ROM). Firmware can boot and operate a device. Each controller contains firmware which helps provide the controller's functionality.

flash bios

A BIOS that is stored in flash memory rather than in ROM. A flash BIOS chip can be updated in place, whereas a ROM BIOS must be replaced with a newer chip.

flash memory

A type of EEPROM chip that can be reprogrammed from a utility on diskette while still installed in a system; most EEPROM chips can only be rewritten with special programming equipment.

FRU

Abbreviation for field replaceable unit.

heat sink

A metal plate with metal pegs or ribs that help dissipate heat. Most microprocessors include a heat sink.

hot plug

The ability to remove and replace a redundant part while the system is still running. Also called a "hot spare."

HPFS

Abbreviation for the High Performance File System option in the Windows NT operating systems.

HTTP

Abbreviation for Hypertext Transfer Protocol. HTTP is the client-server TCP/IP protocol used on the World Wide Web for the exchange of HTML documents.

HTTPS

Abbreviation for HyperText Transmission Protocol, Secure. HTTPS is a variant of HTTP used by Web browsers for handling secure transactions. HTTPS is a unique protocol that is simply SSL underneath HTTP. You need to use "https://" for HTTP URLs with SSL, whereas you continue to use "http://" for HTTP URLs without SSL.

iDRAC

Acronym for Integrated Dell Remote Access Controller.

iDRAC6 Express

This is an optional storage card. Its presence will be reported under the slot page.

iDRAC6 Enterprise

This is an optional card that contains an SD card for advanced features and a dedicated network communication to iDRAC.

Instantaneous Headroom

This is the theoretical maximum power drawn by the power supply minus the instantaneous power drawn.

Internal USB

Internal USB flash drive and device is an additional storage. Internal USB enhances the virtualization capabilities.

IP address

Abbreviation for Internet Protocol address. See TCP/IP.

IPMI

Abbreviation for Intelligent Platform Management Interface, which is an industry standard for management of peripherals used in enterprise computers based on Intel architecture. The key characteristic of IPMI is that inventory, monitoring, logging, and recovery control functions are available independent of the main processors, BIOS, and operating system.

IPv6

Internet Protocol version 6.

IRQ

Abbreviation for interrupt request. A signal that data is about to be sent to or received by a peripheral device travels by an IRQ line to the microprocessor. Each peripheral connection must be assigned an IRQ number. For example, the first serial port in your system (COM1) is assigned to IRQ4 by default. Two devices can share the same IRQ assignment, but you cannot operate both devices simultaneously.

iSCSI

Acronym for Internet SCSI. An IP based storage networking standard for linking data storage facilities. By carrying SCSI commands over IP networks, iSCSI is used to facilitate data transfers over intranets and to manage storage over long distances.

JSSE

Abbreviation for Java™ Secure Socket Extension.

Kerberos

A network authentication protocol. It is designed to provide strong authentication for client/server applications by using secret-key cryptography.

LDAP

Acronym for lightweight directory access protocol. A networking protocol for querying and modifying directory services running over TCP/IP.

LPTn

The device names for the first through third parallel printer ports on your system are LPT1, LPT2, and LPT3.

LRA

Abbreviation for local response agent.

managed system

A managed system is any system that is monitored and managed using Server Administrator. Systems running Server Administrator can be managed locally or remotely through a supported Web browser. See remote management system.

memory module

A small circuit board containing DRAM chips that connects to the system board.

MIB

Acronym for management information base. The MIB is used to send detailed status/commands from or to an SNMP managed device.

microprocessor

The primary computational chip inside the system that controls the interpretation and execution of arithmetic and logic functions. Software written for one microprocessor must usually be revised to run on another microprocessor. CPU is a synonym for microprocessor.

modular system

A system that can include multiple server modules. Each server module functions as an individual system. To function as a system, a server module is inserted into a chassis which includes power supplies, fans, a system management module, and at least one network switch module. The power supplies, fans, system management module, and network switch module are shared resources of the server modules in the chassis. See server module.

MOF

Acronym for managed object format, which is an ASCII file that contains the formal definition of a CIM schema.

name

The name of an object or variable is the exact string that identifies it in an SNMP Management Information Base (MIB) file or in a CIM Management Object File (MOF).

NIC

Acronym for network interface controller.

NTFS

Abbreviation for the Windows NT File System option in the Windows NT operating system. NTFS is an advanced file system designed for use specifically within the Windows NT operating system. It supports file system recovery, extremely large storage media, and long file names. It also supports object-oriented applications by treating all files as objects with user-defined and system-defined attributes. See also FAT and FAT32.

NTLM

Abbreviation for Windows NT LAN Manager. NTLM is the security protocol for the Windows NT operating system.

NUMA

Non-Uniform Memory Architecture.

OID

Abbreviation for object identifier. An implementation-specific integer or pointer that uniquely identifies an object.

PAM

Acronym for Pluggable Authentication Modules. PAM allows system administrators to set an authentication policy without having to recompile authentication programs.

parameter

A value or option that you specify to a program. A parameter is sometimes called a switch or an argument.

Peak Headroom

The theoretical maximum power drawn by a power supply minus the peak power drawn.

PERC

Acronym for PowerEdge Expandable RAID controller.

peripheral device

An internal or external device—such as a printer, a disk drive, or a
keyboard—connected to a system.

PKCS #7

Abbreviation for Public Key Cryptography Standard #7. PKCS #7 is an RSA Data Security, Inc., standard for encapsulating signed data such as a certificate chain.

PMBus

Power Management Bus

power supply

An electrical system that converts AC current from the wall outlet into the DC currents required by the system circuitry. The power supply in a personal computer typically generates multiple voltages.

ppm

Abbreviation for pages per minute.

PPP

Abbreviation for Point-to-Point Protocol.

provider

A provider is an extension of a CIM schema that communicates with managed objects and accesses data and event notifications from a variety of sources. Providers forward this information to the CIM Object Manager for integration and interpretation.

PS

Abbreviation for power supply.

RAC

Acronym for remote access controller.

RAID

Acronym for redundant array of independent disks.

RBAC

Abbreviation for role-based access control.

remote management system

A remote management system is any system that accesses the Server Administrator home page on a managed system from a remote location using a supported Web browser. See managed system.

ROM

Acronym for read-only memory. Your system contains some programs essential to its operation in ROM code. Unlike RAM, a ROM chip retains its contents even after you turn off your system. Examples of code in ROM include the program that initiates your system's boot routine and the POST.

RPM

Abbreviation for Red Hat� Package Manager.

SAS

Acronym for Secure Authentication Services or Serial-attached SCSI. When referring to security protocols or authentication, SAS is Secure Authentication Services. When referring to computer peripheral devices that employ a serial (one bit at a time) means of digital data transfer over thin cables, SAS is Serial-attached SCSI.

SCSI

Acronym for small computer system interface. An I/O bus interface with faster data transmission rates than standard ports. You can connect up to seven devices (15 for some newer SCSI types) to one SCSI interface.

SEL

Acronym for system event log.

serial port

An I/O port used most often to connect a modem to your system. You can usually identify a serial port on your system by its 9-pin connector.

settings

Settings are conditions of a manageable object help to determine what happens when a certain value is detected in a component. For example, a user can set the upper critical threshold of a temperature probe to 75 degrees Celsius. If the probe reaches that temperature, the setting results in an alert being sent to the management system so that user intervention can be taken. Some settings, when reached, can trigger a system shutdown or other response that can prevent damage to the system.

server module

A modular system component that functions as an individual system. To function as a system, a server module is inserted into a chassis which includes power supplies, fans, a system management module, and at least one network switch module. The power supplies, fans, system management module, and network switch module are shared resources of the server modules in the chassis. See modular system.

SMART

Acronym for Self-Monitoring Analysis and Reporting Technology. A technology that allows hard drives to report errors and failures to the system BIOS, which then displays an error message on the screen. To take advantage of this technology, you must have a SMART-compliant hard drive and the proper support in the system BIOS.

SMTP

Abbreviation for Simple Mail Transfer Protocol.

SNMP

Abbreviation for Simple Network Management Protocol. SNMP, a popular network control and monitoring protocol, is part of the original TCP/IP protocol suite. SNMP provides the format in which vital information about different network devices, such as network servers or routers, can be sent to a management application.

SSL

Abbreviation for secure socket layer.

state

Refers to the condition of an object that can have more than one condition. For example, an object may be in the "not ready" state.

status

Refers to the health or functioning of an object. For example, a temperature probe can have the status normal if the probe is measuring acceptable temperatures. When the probe begins reading temperatures that exceed limits set by the user, it reports a critical status.

switch

On a system board, switches control various circuits or functions in your computer system. These switches are known as DIP switches; they are normally packaged in groups of two or more switches in a plastic case. Two common DIP switches are used on system boards: slide switches and rocker switches. The names of the switches are based on how the settings (on and off) of the switches are changed.

syntax

The rules that dictate how you must type a command or instruction so that the system understands it. A variable's syntax indicates its data type.

system board

As the main circuit board, the system board usually contains most of your system's integral components, such as the following:

  • Microprocessor

  • RAM

  • Controllers for standard peripheral devices, such as the keyboard

  • Various ROM chips

Frequently used synonyms for system board are motherboard and logic board.

system memory

System memory is a synonym for RAM.

System Setup program

A BIOS-based program that allows you to configure your system's hardware and customize the system's operation by setting such features as password protection and energy management. Some options in the System Setup program require that you reboot the system (or the system may reboot automatically) in order to make a hardware configuration change. Because the System Setup program is stored in NVRAM, any settings remain in effect until you change them again.

table

In SNMP MIBs, a table is a two dimensional array that describes the variables that make up a managed object.

TCP/IP

Abbreviation for Transmission Control Protocol/Internet Protocol. A system for transferring information over a computer network containing dissimilar systems, such as systems running Windows and UNIX.

TFTP

Abbreviation for Trivial File Transfer Protocol. TFTP is a version of the TCP/IP FTP protocol that has no directory or password capability.

threshold values

Systems are normally equipped with various sensors that monitor temperature, voltage, current, and fan speed. The sensor's threshold values specify the ranges (min and max values) for determining whether the sensor is operating under normal, noncritical, critical or fatal conditions. Server Administrator-supported threshold values are:

  • UpperThresholdFatal

  • UpperThresholdCritical

  • UpperThresholdNoncritical

  • Normal

  • LowerThresholdNoncritical

  • LowerThresholdCritical

  • LowerThresholdFatal

time-out

A specified period of system inactivity that must occur before an energy conservation feature is activated.

TPM

Acronym for Trusted Platform Module

UART

Acronym for universal asynchronous receiver transmitter, the electronic circuit that makes up the serial port.

URL

Abbreviation for Uniform Resource Locator (formerly Universal Resource Locator).

USB

Abbreviation for Universal Serial Bus. A USB connector provides a single connection point for multiple USB-compliant devices, such as mice, keyboards, printers, and computer speakers. USB devices can also be connected and disconnected while the system is running.

utility

A program used to manage system resources—memory, disk drives, or printers, for example.

utility partition

A bootable partition on the hard drive that provides utilities and diagnostics for your hardware and software. When activated, the partition boots and provides an executable environment for the partition's utilities.

UUID

Abbreviation for Universal Unique Identification.

variable

A component of a managed object. A temperature probe, for example, has a variable to describe its capabilities, its health or status, and certain indexes that you can use to help you in locating the right temperature probe.

VRM

Abbreviation fro voltage regulator module.

Web server

An application that makes Web pages available for viewing by Web browsers using the HTTP protocol.

WH

Abbreviation for watt-hour(s).

WMI

Acronym for Windows Management Instrumentation. WMI provides CIM Object Manager services.

X.509 Certificate

An X.509 certificate binds a public encryption key to the identity or other attribute of its principal. Principals can be people, application code (such as a signed applet) or any other uniquely identified entity (such as a DSM SA Connection Service or Web server).

Xen

Xen is a virtual machine monitor for x86 systems.

XMM

Abbreviation for extended memory manager, a utility that allows application programs and operating systems to use extended memory in accordance with the XMS.

XMS

Abbreviation for eXtended Memory Specification.

X Window System

The graphical user interface used on Linux® based distributions.

ZIF

Acronym for zero insertion force. Some systems use ZIF sockets and connectors to allow devices such as the microprocessor chip to be installed or removed with no stress applied to the device.

ZIP

A 3.5-inch removable disk drive from Iomega. Originally, it provided 100-MB removable cartridges. The drive is bundled with software that can catalog the disks and lock the files for security. A 250-MB version of the Zip drive also reads and writes the 100-MB Zip cartridges.


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