Acronyms

CHAP - Challenge-Handshake Authentication Protocol - A technique to authenticate initiators and targets.

DA - Directory Agent - an SLP component.

Fibre Channel - an encapsulation protocol used primarily for SCSI on HP-UX.

GigE - Gigabit Ethernet - an ethernet network that functions at Gigabit speeds.

HA - High Availability - a configuration component designed to maximize hardware and software availability through various component fail-over techniques.

HBA - Host Bus Adapter - a computer hardware component that provides outside connectivity from a computer system using a specific protocol across an internal bus.

HP-UX - HP-Unix - HP version of the UNIX Operating System.

IETF - Internet Engineering Task Force - a standards preparation group.

IP - Internet Protocol - a network transmission protocol.

IPSec - Internet Protocol Security - an internet protocol security system.

iSCSI - SCSI over IP - an IETF encapsulation protocol for use of SCSI block IO over an IP network.

ISID - Initiator Session Identifier - The iSCSI session identifier defined on the host. See the iSCSI specification for further details.

KRS - Kernel Registry Services - An HP-UX kernel specific mechanism that facilitates the maintenance of structured data. Subsystems wihtin the kernel can use KRS to maintain data. This data can either be volatile, or persistent, across system reboots.

LU - Logical Unit - as defined in SAM-2: an end device such as a stand-alone disk or tape, or a piece of logical storage in a disk array.

LUN - Logical Unit Number - as defined in SAM-2: the path to a LU, or the 64-bit address of the LU.

LVM - Logical Volume Manager - HP-UX software subsystem for volume management.

NAS - Network Access Server - Operates as a client of a RADIUS server. This is the host which runs the “iradd” daemon.

OLA/R/D - OLA (Online Addition), OLR (Online Replacement), OLD (Online Deletion), and OLAR (Online Addition and Replacement) - the HP-UX ability to add, delete, or replace a PCI/PCI-X HBA while the system remains up and running.

PCI - Peripheral Component Interconnect - a system IO bus widely used in computer systems; the IO bus standard for new HP servers.

PCI-X - Peripheral Component Interconnect Extended - the follow-on higher speed version of PCI.

pSCSI - parallel SCSI - transport layer support for SCSI parallel busses.

PVLinks - Physical Volume Links - an HP-UX component of LVM that permits the fail-over from a primary path to a LU to an alternate path to the LU.

RADIUS - Remote Authentication Dial In User Service - A RADIUS server is used in CHAP authentication of initiators and targets.

SA - Service Agent

SAM - System Administration Manager - an HP-UX GUI tool for system level administration.

SAM-2 - SCSI Architecture Model (2) - a T10 standard.

SAN - Storage Area Network - a network with emphasis on storage with a defined protocol for the infrastructure.

SCSI - Small Computer Systems Interface - a mass storage data transmission protocol.

SD - Software Distributor - an HP-UX tool for installation and distribution of software.

SG - Serviceguard - an HA product for HP-UX.

SLP - Service Location Protocol - a standard for local service delivery in an intranet.

STM - Support Tool Manager - an HP-UX diagnostic tool subsystem.

SWD - Software Interface Driver - an interface driver for the iSCSI Software Initiator.

TPGT - Target Portal Group Tag - a number between 0 and 65535 that identifies a target portal group.

UA - User Agent - an SLP component.