HP Surestore 64 HP Surestore Director FC-64 Product Manager User's Guide - Page 224

channel Point-to-point link that transports data from one point to the other. class of Fibre Channel service Defines the level of connection dedication, acknowledgment, and other characteristics of a connection. Class F Fibre Channel service Used by switches to communicate across interswitch links (ISLs) to configure, control, and coordinate a multiswitch fabric. Class 2 Fibre Channel service Provides a connectionless (not dedicated) service with notification of delivery or nondelivery between two N_Ports. In-order delivery of frames is not guaranteed. Class 3 Fibre Channel service Provides a connectionless (not dedicated) service without notification of delivery or nondelivery between two N_Ports. Also known as datagram CMM See central memory module card. community profile Information that specifies which management objects are available to what management domain or SNMP community name. concurrent maintenance Ability to perform maintenance tasks, such as removal or replacement of fieldreplaceable units, while a hardware product is operating. configuration data Configuration data includes: identification data, port configuration data, operating parameters, SNMP configuration, and zoning configuration. A configuration backup file is required to restore configuration data if the nonredundant CTP card in an HP Surestore Director FC-64 is removed and replaced. 208 Glossary