HP StorageWorks 2/140 FW 08.01.00 McDATA Products in a SAN Environment Plannin - Page 39

Introduction to McDATA Multi-Protocol Products 1 concurrently upgraded. The combination of high port count and the FlexPar feature enables an enterprise to use the director at the core of both small and large SAN fabrics. For example: • Large fabrics built around the director require fewer fabric elements (directors and switches) and ISLs. Large fabrics benefit from deterministic non-blocking performance, less ISL congestion, and better cable management. This performance is not possible from a fabric constructed with smaller port-count switches interconnected with multiple ISLs. Refer to General Fabric Design Considerations for information. • Smaller fabrics or SAN islands built around the director (but separated through FlexPars) benefit from better resource utilization because port configurations are flexible to accommodate change and the hardware does not require over-provisioning for growth. The FlexPar feature enables additional fabric ports to be added to a partition on demand, without interrupting fabric traffic. Refer to Inter-FlexPar Routing for information. The director provides a modular design that enables quick removal and replacement of FRUs, including: • Front bezel with green power (SYSTEM ON) and amber error (SYSTEM FAULT) LEDs. • Redundant CTP (1.0625, 2.1250, and 10.2000 Gbps operation) logic cards. • Redundant and shared switching module (SWM) logic cards. The director provides a variable, full-duplex, packet-switching bandwidth that scales up to 640 Gbps (four SWMs at 160 Gbps per module). • Redundant cooling fan trays (upper and lower, front and rear). • Power tray with redundant, load-sharing power supplies and AC power switches. • Upper and lower cable trays. • A minimum of one to a maximum of eight Fibre Channel line modules (LIMs). Each LIM provides the interface to attach up to four optical paddles as follows: Introduction to McDATA Multi-Protocol Products 1-13