Q-Logic SN0054621-00 E Flash Bios, GPort, HBA alias, HBA port alias, HBA port beacon

SANsurfer iSCSI HBA CLI User’s Guide

Command Line Interface for QLogic iSCSI Host Bus Adapters

S

Flash

Nonvolatile memory holding the boot code. At times, Flash and boot code are used interchangeably. (See boot code)

Flash BIOS

A flash PROM contains the BIOS code for the HBA.

G_Port

Generic port. A port that can operate as either an E_Port or an F_Port. A G_Port can determine operating mode at switch port initialization, F_Port when an N_Port attachment is determined, E_Port when an E_Port attachment is determined. See E_Port, F_Port, FL_Port, L_Port, N_Port (Node Port), NL_Port (Node Loop Port)

HBA

Host bus adapter. The board that inter- faces between the host system and the target devices. HBA is synonymous with adapter, host adapter, and adapter board.

HBA alias

A user-defined name for an HBA.

HBA port

A port on the HBA board.

HBA port alias

A user-defined name for an HBA port.

HBA port beacon

An LED on the HBA. Flashing it enables you to locate the HBA.

IOCB

I/O control block. An IOCB is a command structure in QLogic ISP architecture.

ioctl

Input/output control. A system call in Unix/Linux systems. Allows an application to control or communicate with a device driver outside usual read/write operations.

JBOD

“Just a bunch of disks.” As opposed to a SAN. See SAN.

L_Port

Loop port. Does arbitrated loop functions and protocols. NL_Ports and FL_Ports are examples of loop-capable ports. See E_Port, F_Port, FL_Port, G_Port, N_Port (Node Port), NL_Port (Node Loop Port).

LIP

Loop initialization process. The initializa- tion process in an arbitrated loop that occurs when the loop is powered up or a new device is added. One function of a LIP is to assign addresses. All data transmis- sion on the loop is suspended during a LIP.

load balancing

A software feature that improves system performance by balancing device access between multiple HBAs for maximum resource efficiency. Available in Windows 2000/Windows Server 2003, Novell NetWare, and Red Hat/SUSE Linux.

loopback

Diagnostic tool that routes transmit data through a loopback connector back to the same HBA.

loop ID

The device’s AL_PA on the loop.

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