Glossary

Failback

Restoring a failed system component’s share of a load to a replacement component.

Failover

A mode of operation for failure tolerant systems in which a component has failed and a redundant component has assumed its functions.

Failover Port

A fibre channel port capable of assuming I/O requests for another, failed port on the loop. During normal operation, a failover port may be active or inactive. Failover ports assume the same loop ID and, optionally, the same node from the failed port.

Failure

A detectable physical change in hardware, requiring replacement of the component.

Fast SCSI

Devices that increases the speed at which data is transferred as opposed to the volume of data. These devices use data rates up to 10 MHz.

Fast/Wide SCSI

SCSI devices using data rates up to 20 MHz.

Flash ROM

Memory on an adapter containing software that can be reprogrammed without removing it from the board.

Format

A pre-established layout for data. Programs accept data as input in a certain format, process it, and provide it as output in the same or another format. All data is stored in some format with the expectation that it will be processed by a program that knows how to handle that format.

Gigabit

109 (1,000,000,000) bits. Abbreviated as Gb.

Manual No. 775012

G-7