HP StorageWorks 2/16V Brocade Glossary (53-1000040-03, November 2006) - Page 7

Glossary autocommit autoleveling A feature of the firmwareDownload command. Enabled by default, autocommit commits new firmware to both the primary and secondary partitions of a CP. With autocommit disabled, the firmware is written only to the primary partition of a CP, enabling you to restore the previous firmware from the secondary partition. A process run on switch modules (blades in a Brocade director) that is triggered when the active CP detects that the blade contains a different version of the firmware, regardless of which version is older. Autoleveling downloads the firmware to the blade, swaps partitions, reboots the blade, and copies the new firmware from the primary partition to the secondary partition. automatic In administrative domains, all switches, ports, and devices that have not been explicitly declared in any member AD (including AD0); a member of in the implicit list. See also AD0, fixed member, and implicit list. AW_TOV Arbitration wait timeout value. The minimum time an arbitrating L_Port waits for a response before beginning loop initialization. B backbone fabric A backbone fabric can consist of a single- or multiple- Fibre Channel Routing Services capable switches that connect to each other directly or indirectly through other switches using E_Ports or VE_Ports. Two edge fabrics can communicate across a backbone fabric and share resources such as storage or servers, they are kept from merging into a single fabric. Edge fabrics can also share devices with backbone fabric with FR4-18i and vice-versa. See also Fibre Channel Routing Services, translate phantom domain, and phantom device. backup FCS Relates to the Brocade Secure Fabric OS feature. The backup fabric configuration server serves as a switch backup in case the primary FCS switch fails. See also FCS switch and primary FCS switch. bandwidth The total transmission capacity of a cable, link, or system. Usually measured in bits/sec (bits per second). Can also refer to the range of transmission frequencies available to a link or system. Basic User mode In Web Tools, a switch configuration that is set from the EZSwitchSetup CD. If Basic User mode is enabled, then entering the switch IP address in a browser window launches Web Tools EZ instead of Web Tools. Basic User mode is supported only on SilkWorm 200E and 3250 switches. BB See backbone fabric. 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-tobuffer flow control and 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 Fabric OS command or through Web Tools. Brocade Glossary 3 Publication Number: 53-1000040-03