HP StorageWorks B-Series Multi-protocol Router Blade Installation Guide (A7990-90002, June 2006)

B-Series Multi-protocol Router blade installation guide 53
Glossary
This glossary defines terms used in this guide or related to this product and is not a comprehensive
glossary of computer terms.
AL_PA Arbitrated loop physical address. A unique 8-bit value assigned during loop
initialization to a port in an arbitrated loop.
alias server A fabric software facility that supports multicast group management.
API Application programming interface. A defined protocol that allows applications to
interface with a set of services.
AW_TOV Arbitration wait time-out value. The minimum time an arbitrating L_Port waits for a
response before beginning loop initialization.
backup FCS
switch
Backup fabric configuration server switch. The switch or switches assigned as
backup in case the primary FCS switch fails.
bandwidth The total transmission capacity of a cable, link, or system. Usually measured in bps
(bits per second). May also refer to the range of transmission frequencies available
to a link or system.
broadcast The transmission of data from a single source to all devices in the fabric, regardless
of zoning.
buffer
-to-buffer
flow control
Management of the frame transmission rate in either a point-to-point topology or in
an arbitrated loop.
CLI Command line interface. Interface that depends entirely on the use of commands,
such as through telnet or SNMP, and does not involve a GUI.
compact flash
Flash (temporary) memory that is used in a manner similar to hard disk storage. It is
connected to a bridging component which connects to the PCI bus of the processor.
Not visible within the processor's memory space.
Configuration The way in which a system is set up. May refer to hardware or software.
Hardware: The number, type, and arrangement of components that make up a
system or network.
Software: The set of parameters that guide switch operation. May include general
system parameters, IP address information, Domain ID, and other information.
Modifiable by any login with administrative privileges.
May also refer to a set of zones.
CRC Cyclic redundancy check. A check for transmission errors that is included in every
data frame.
data word A type of transmission word that occurs within frames. The frame header, data field,
and CRC all consist of data words.
defined zone
configuration
The set of all zone objects defined in the fabric. May include multiple zone
configurations.