Lenovo ThinkServer RD540 User Manual download pdf (Page 119)

8200 Series Converged Network Adapter and 3200 Series Intelligent Ethernet Adapter Page 101

Glossary

adapter

The board that interfaces between the host

system and the target devices. Adapter is

synonymous with host bus adapter, host

channel adapter (HCA), host adapter, and

adapter board.

adapter port

A port on the adapter board.

adapter port beacon

An LED on the adapter. Flashing it enables you

to locate the adapter.

alias

A user-defined name for an adapter, adapter

port, logical disk, or subsystem.

Basic input output system (BIOS)

The program (or utility) that serves as an inter-

face between the hardware and the operating

system and allows booting from the adapter at

startup.

boot device

The device, usually a the hard disk, that

contains the operating system the BIOS uses to

boot from when the computer is started.

boot from SAN

The ability for each server on a network to boot

their operating system from a Fibre Channel

RAID unit located on the SAN, rather than from

a local disk or direct-attached storage (DAS).

This enables easier SAN management because

you can replace a server and boot it from the

Fibre Channel RAID unit.

challenge-handshake authentication protocol

(CHAP)

CHAP is used for remote logon, usually

between a client and server or a Web browser

and Web server. A challenge/response is a

security mechanism for verifying the identity of

a person or process without revealing a secret

password that is shared by the two entities. Also

referred to as a” three-way handshake.”

Converged Network Adapter

QLogic Converged Network Adapters support

both data networking (TCP/IP) and storage

networking (Fibre Channel) traffic on a single

I/O adapter using two new technologies:

Enhanced Ethernet and Fibre Channel over

Ethernet.

cyclic redundancy check (CRC)

A type of check value designed to catch most

transmission errors.

device

A computer subsystem, such an adapter card,

which mediates data in a computer network.

The term “device” is used interchangeably with

“target” and “target device.”

driver

The software that interfaces between the file

system and a physical data storage device or

network media.

dynamic host configuration protocol (DCHP)

Enables computers on an IP network to extract

their configuration from servers that have infor-

mation about the computer only after it is

requested.

Enhanced Ethernet

Also called data center Ethernet or converged

enhanced Ethernet. Refers to new enhance-

ments to the existing Ethernet standard that

eliminate Ethernet’s inherent lossy nature and

make 10Gb Ethernet a viable storage

networking transport.

Ethernet

The most widely used LAN technology that

transmits information between computers,

typically at speeds of 10 and 100 million bits per

second (Mbps).

failover path

Software feature that ensures data availability

and system reliability by assigning alternate

path and automatic adapter failover for device

resources.

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