HP StorageWorks 2/64 HP StorageWorks Fabric OS 5.x Command Reference Guide (AA - Page 798

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 The disparity at the transmitter or receiver when the special character associated with an disparity 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 Management of the frame transmission rate in either a point-to-point topology or in an control 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. 798 Glossary