HP Brocade 4Gb SAN Switch for HP BladeSystem c-Class - Manual (Page 148)

148 Glossary
configuration 1. A set of parameters that can be modified to fine-tune the operation of a switch. Use the
configshow
command to view the current configuration of your switch.
2. In HP Zoning, a zoning element that contains a set of zones. The configuration is the
highest-level zoning element and is used to enable or disable a set of zones on the fabric. See
also zone configuration .
core PID Core switch port identifier. The core PID must be set for v3.1 and earlier switches included in a
fabric of v4.1 switches. This parameter is located in the configure command of firmware
versions v3.1 and earlier. All v4.1 switches and later use the core PID format by default; this
parameter is not present in the configure command for these switches.
credit As applied to Fibre Channel technology, the number of receive buffers available to transmit
frames between ports. See also BB_Credit .
DID Destination identifier. A 3-byte field in the frame header that indicates the address identifier of
the N_Port to which the frame is headed.
defined zone
configuration
The set of all zone objects defined in the fabric. Can include multiple zone configurations. See
also enabled zone configuration , zone configuration .
director An HP StorageWorks Core Switch 2/64 or SAN Director 2/128.
DLS Dynamic load-sharing. Dynamic distribution of traffic over available paths. Allows for the
recomputing of routes when an Fx_Port or E_Port changes status.
domain ID A unique identifier for all switches in a fabric; it is used in routing frames. Usually assigned by
the principal switch, but can be assigned manually. The domain ID for an HP StorageWorks
switch can be any integer between 1 and 239.
E_D_TOV Error-detect time-out value. The minimum time a target waits for a sequence to complete before
initiating recovery. Can also be defined as the maximum time allowed for a round-trip
transmission before an error is declared. See also R_A_TOV .
E_Port Expansion port. A standard Fibre Channel mechanism that enables switches to network with
one another, creating an ISL. See also ISL .
edge fabric A Fibre Channel fabric connected to an MP Router through an EX_Port (where hosts and
storage are attached in a meta-SAN). See also MP Router , metro-SAN
enabled zone
configuration
The currently enabled configuration of zones. Only one configuration can be enabled at a
time. See also defined zone configuration , zone configuration .
error As applied to the Fibre Channel industry, a missing or corrupted frame, time-out, loss of
synchronization, or loss of signal (link errors).
EX_Port A type of E_Port that connects a switch to an edge fabric. EX_Ports limit the scope of fabric
services, but provide device connectivity using FC-NAT.
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 direction or both
directions.
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).
F_Port Fabric port. A port that is able to transmit under fabric protocol and interface over links. Can
be used to connect an N_Port to a switch. See also FL_Port , Fx_Port .
fabric A collection of Fibre Channel switches and devices, such as hosts and storage. Also called a
switched fabric. See also SAN , 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.