HP StorageWorks 2/64 - Core Switch, Command Reference Manual

Page: 798 / 830

798 Glossary
autocommit A feature of the
firmwareDownload
command. Enabled by default, autocommit commits
new firmware to both partitions of a control processor.
autoreboot Refers to the
-b
option of the
firmwareDownload
command. Enabled by default.
AW_TOV Arbitration wait timeout value. The minimum time an arbitrating L_Port waits for a response
before beginning loop initialization.
backbone fabric An optional capability that enables scalable meta-SANs by allowing the networking of
multiple FC routers, which connect to the backbone fabric via EB_Port interfaces.
backup FCS switch Relates to the HP Secure Fabric OS feature. The backup fabric configuration server serves as a
backup in case the primary FCS switch fails. See also FCS switch , primary FCS switch .
BB fabric A backbone fabric that connects FC Routers. The FC Routers communicate over the backbone
fabric using FCRP (Fibre Channel Router Protocol).
BB_Credit Buffer-to-buffer credit. The number of frames that can be transmitted to a directly connected
recipient or within an arbitrated loop. Determined by the number of receive buffers available.
See also buffer-to-buffer flow control , EE_Credit .
beacon A tool in which all of the port LEDs on a switch are set to flash from one side of the switch to
the other, to enable identification of an individual switch in a large fabric. A switch can be set
to beacon by a CLI command or through HP Advanced Web Tools.
beginning running
disparity
The disparity at the transmitter or receiver when the special character associated with an
ordered set is encoded or decoded. See also disparity .
BER Bit error rate. The rate at which bits are expected to be received in error. Expressed as the ratio
of error bits to total bits transmitted. See also error .
BISR Built-in self-repair.
BIST Built-in self-test.
bit synchroniza-tion The condition in which a receiver is delivering retimed serial data at the required bit error rate.
Bloom The code name given to the third-generation HP Fabric ASIC. This ASIC is used in
StorageWorks 2 GB switches and beyond.
boot code Software that initialized the system environment during the early phase of the boot-up process.
For example, boot code might determine the amount of available memory and how to access
it.
boot flash Flash (temporary) memory that stores the boot code and boot.
broadcast The transmission of data from a single source to all devices in the fabric, regardless of zoning.
See also multicast , unicast .
buffer-to-buffer flow
control
Management of the frame transmission rate in either a point-to-point topology or in an
arbitrated loop. See also BB_Credit .
bypass circuitry Circuits that automatically remove a device from the data path when valid signals are
dropped.
CA Certificate authority. A trusted organization that issues digital certificates. See also digital
certificate .
CAM Content-addressable memory.