HP StorageWorks 2/64 HP StorageWorks Fabric OS 5.x Master Glossary (AA-RW7NA-T - Page 10

EMI Electromagnetic interference. Any electromagnetic disturbance that interrupts, obstructs, or otherwise degrades or limits the effective performance of electronics/electrical equipment. Emulex A brand of host bus adapter (HBA). enabled zone configuration The currently enabled configuration of zones. Only one configuration can be enabled at a time, but since multiple configurations can be defined in the database, a new configuration can be easily enabled. See also defined zone configuration and zone configuration. end-to-end flow control A process that governs flow of Class 1 and 2 frames between N_Ports. See also EE_Credit. entry fabric The basic HP software license that allows one E_Port per switch. EOF End of frame. A group of ordered sets used to mark the end of a frame. E_Port Expansion port. A type of switch port that can be connected to an E_Port on another switch to create an ISL. See also ISL and isolated E_Port. EPPID Dynamic identifier for the chassis in which a port card resides. The identifier is written to the card each time the card is inserted into a chassis. error As it applies to the Fibre Channel industry, a missing or corrupted frame, timeout, loss of synchronization, or loss of signal (link error). See also loop failure. ESCON Enterprise Systems CONnection. An IBM S/390 fiber-optic channel that transfers 17 Mbps over distances up to 60 km depending on connection type. ESCON allows peripheral devices to be located across large campuses and metropolitan areas. See FICON Ethernet The most widely used LAN access method, defined by the Institute of Electrical and Electronics Engineers (IEEE) as the 802.3 standard. EVMd Event management database. Delivers FDMI-related events. exchange The highest-level Fibre Channel mechanism used for communication between N_Ports. Composed of one or more related sequences, it can work in either one or both directions. EX_Port A type of E_Port that connects an MP Router to an edge fabric. EX_Ports limit the scope of fabric services scope but provide device connectivity using FC-NAT. exported device A device that has been mapped between fabrics. A host or storage port in one edge fabric can be exported to any other fabric by using LSAN zoning. fabric A collection of Fibre Channel switches and devices, such as hosts and storage. Also called switched fabric. See also cascade, SAN, and topology. fabric application platform A device that enables fabric-based storage applications such as mirroring, data migration, snapshots, and virtual tape. The HP StorageWorks Fabric Application Platform can run in a central location, process data at wire speed, and reside in existing data paths. Fabric Manager Optionally licensed HP StorageWorks software. Fabric Manager is a GUI that allows for fabric-wide administration and management. Switches can be treated as groups, and actions such as firmware downloads can be performed simultaneously. 10 Glossary