HP Surestore 64 Planning Guide - Page 73

Routing Fiber-Optic Cables The director has a maximum of 16 FPM cards (64 ports) that may require fiber-optic cable connections and subsequent cable routing. In a Fibre Channel protocol OSI environment, ports are numbered by physical port number only. Figure 15 shows FPM card numbers (0 through 15) and port numbers (00 through 63). FPM Cards 15 14 13 12 11 10 9 8 63 59 55 51 47 43 39 35 FPM Cards 7 65 43 2 10 31 27 23 19 15 11 07 03 CTP - 1 Card CTP - 0 Card 62 58 54 50 46 42 38 34 30 26 22 18 14 10 06 02 61 57 53 49 45 41 37 33 29 25 21 17 13 09 05 01 60 56 52 48 44 40 36 32 28 24 20 16 12 08 04 00 Figure 15 FPM Card and Port Numbers (OSI) Connect cables to ports starting with the top port on all FPM cards, then use the second port on all FPM cards, and continue working downward. Leave enough slack in the cables to allow cable movement for FPM card removal and replacement, or possible rerouting of the cable to another port. After cables are routed and connected, secure the cables to the sides of the rack using cable ties provided. When routing fiber-optic cables and estimating cable lengths, consider: • Cable routing inside the equipment rack to different FPM card locations, and installation position of the director (top or bottom of the rack). Plan for 1.0 meter (39.37 inches) of extra cable for routing through restraint mechanisms and rerouting cables to other FPM cards. • Cable routing outside the equipment rack. Plan for 1.5 meters (59.05 inches) of cable outside the rack to provide slack for service clearance, limited rack movement, and inadvertent cable pulls. • Cabling distance to servers, storage devices, and directors (for multiswitch fabric support). Planning Considerations Port Connectivity and Fiber-Optic Cabling 59