HP 316095-B21 - StorageWorks Edge Switch 2/24 Руководство - Страница 36

Glossary

small form factor pluggable transceivers

SFP transceivers. Laser-based optical transceivers for a wide range of networking applications

requiring high data rates. The transceivers, which are designed for increased densities,

performance, and reduced power, are well-suited for Fibre Channel applications.

SSP

See

system services

static random access memory

SRAM. SRAM is microprocessor-cache random access memory. It is built internal to the

microprocessor or on external chips. SRAM is fast, but relatively expensive. Contrast with

dynamic random access

storage area network

(SAN) — A high-performance data communications environment that interconnects computing

and storage resources so that the resources can be effectively shared and consolidated.

stored addresses

In FICON management style, a method for configuring addresses.

subnet

A portion of a network that shares a common address component. On transmission control

protocol/Internet protocol (TCP/IP) networks, subnets are defined as all devices whose IP

addresses have the same prefix. Dividing a network into subnets is useful for both security and

performance reasons. IP networks are divided using a subnet mask.

subnet mask

Used by a computer to determine whether another computer with which it needs to

communicate is located on a local or remote network. The network mask depends upon the class

of networks to which the computer is connecting. The mask indicates which digits to look at in

a longer network address and allows the router to avoid handling the entire address.

switchover

Changing a backup FRU to the active state, and the active FRU to the backup state.

switch binding

A feature that restricts the product from allowing connections with the devices that are not listed

on the Switch Binding Membership List. Switch Binding is available only if the SANtegrity

Binding feature is installed.

switch priority

A value configured for each switch in a fabric that determines the relative likelihood of the

switch becoming the fabric's principal switch. A low value indicates a high likelihood of

becoming the principal switch. The highest priority is 1, the lowest priority is 225. A value of

225 indicates the switch is not capable of acting as the principal switch. A value 0 is illegal.

processor.

memory.

Directors and Edge Switches Glossary