HP Surestore Tape Library Model 2/28 HP SureStore Fibre Channel SCSI Bridge 21 - Page 62
Appendix A, Defining Fibre Channel
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Table A-1 Fibre Channel Overview Defining Fibre Channel A fully implemented Fabric system supports over 16 million device addresses, allowing a user to send data from each device at 100 MB per second. Using fiber optic cable, Fibre Channel devices can be spaced at maximum intervals of 10 km, supporting distributed hosts in a campus environment, with centralized storage systems. Fibre Channel uses three connection topologies, illustrated in the following table: Fibre Channel Supported Fabric Topologies Topology Point to point Fibre Channel Arbitrated Loop (FC-AL) Fabric Description Advantages/ Disadvantages Dedicated connection Low cost, high between two devices. performance. Supports up to 126 devices, distributing the 100 MBps data bandwidth among all devices on the loop. Supports more devices. Increasing the number of devices reduces performance. A switching concept, similar to a telephone system, providing simultaneous data-transmission among multiple devices at 100 MBps. Supports multiple devices without performance reduction. Higher cost. A- 4 Appendix A