HP StorageWorks 64 FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Availa - Page 117
Optical Transceivers, Director 2/140, Edge Switch 2/16
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Physical Planning Considerations ■ Director 2/140 - The director is configured from a minimum of 16 universal port module (UPM) cards (64 ports total), to a maximum of 35 UPM cards (140 ports total). UPM cards provide four 2.125 Gbps port connections, and can be configured with shortwave transceivers, longwave transceivers, and extended longwave laser transceivers, or a combination of all three. ■ Edge Switch 2/16 - The switch provides up to 16 duplex small form factor pluggable (SFP) fiber-optic port transceivers (2.125 Gbps operation only). Shortwave laser, longwave laser, and extended longwave laser transceivers are available. ■ Edge Switch 2/24 - The switch provides up to 24 duplex SFP fiber-optic port transceivers (2.125 Gbps operation only). Shortwave laser, longwave laser, and extended longwave laser transceivers are available. ■ Edge Switch 2/32 - The switch provides up to 32 duplex SFP fiber-optic port transceivers (2.125 Gbps operation only). Shortwave laser, longwave laser, and extended longwave laser transceivers are available. Optical Transceivers Shortwave optical transceivers provide a connection for multimode cable with a core diameter of 50 microns and a cladding diameter of 125 microns (50/125), or multimode cable with a core diameter of 62.50 microns and a cladding diameter of 125 microns (62.5/125). A 50/125 micron cable allows a maximum switch-to-device or switch-to-switch distance of up to 300 meters at a 2.125 Gbps data transmission speed. A 62.5/125 micron cable allows a maximum switch-to-device or switch-to-switch distance of up to 150 meters at a 2.125 Gbps data transmission speed. A 62.5 micron cable is only supported for the use of existing cable plants. HP recommends the use of 50 micron cables for new installations. Longwave optical transceivers provide a connection for single-mode cable with a core diameter of 9 microns and a cladding diameter of 125 microns (9/125). Depending on transceiver type, a 9/125 micron cable allows switch-to-device or switch-to-switch distances of 10, 20, or 35 kilometers. HP supplies cables for 10 and 35 kilometers. For longer greater distances, you need Fibre Channel repeaters or wave division multiplexing (WDM) devices. SAN High Availability Planning Guide 117