HP StorageWorks 2/140 director product manager user guide - Page 220

Glossary IOCDS A data set that contains an I/O configuration definition built by the IOCP. IOCP See input/output configuration program. IP address See internet protocol address. IPL See initial program load. ISL See interswitch link. jumper cable Optical cable that provides physical attachment between two devices or between a device and a distribution panel. Contrast with trunk cable. latency When used in reference to a Fibre Channel switching device, latency refers to the amount of time elapsed between receipt of a data transmission at a switch's incoming F_Port (from the originating node port) to retransmission of that data at the switch's outgoing F_Port (to the destination N_Port). The amount of time it takes for data transmission to pass through a switching device. LIN See link incident. link Physical connection between two devices in a switched fabric. link incident (LIN) Interruption to a Fibre Channel link due to loss of light or other cause. load balancing Ability to evenly distribute traffic over multiple interswitch links within a fabric. Load balancing on HP directors takes place automatically. logical port address The port numbering system for a director with the FICON Management Server active. Glossary-12 director product manager user guide