Cable Requirements; Operating Systems - HP 316095-B21 - StorageWorks Edge Switch 2/24 Release Note

Hp storageworks director and edge switch release notes (09.08.03) (5697-0077, july 2009)

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ation is subject to change, contact your HP-authorized service representative for the current number

of ISLs supported for each Edge Switch or Director.

Hop count—The hop count is equal to the number of ISL connections traversed in a single path,

not the total number of ISL connections between devices. The Fibre Channel theoretical limit of ISL

connections traversed (hop count) in a single path through a fabric is seven. The maximum supported

hop count in a single path through a fabric is three. Because this information is subject to change,

contact your HP-authorized service representative for the current hop count supported by a single

fabric path.

NOTE:

For more information about planning the fabric, see the HP StorageWorks SAN design reference

guide , available on the following HP website:

http://www.hp.com/go/SANdesignguide

Cable requirements

Consider the following switch cable requirements.

For cables measuring up to 500 meters (1 Gb/s) or 300 meters (2 Gb/s), use multimode Fibre

Channel cables. For longer cables, use single-mode Fibre Channel cables.

Multimode optical cables are connected to short-wave optical transceiver modules in a switch.

Single-mode optical cables are connected to long-wave optical transceiver modules in a switch.

Multimode cables should use 50/125 optical fibers; single-mode cables typically use 9/125 op-

tical fibers for distances up to 10 km.

Verify that connectors interfacing with the Edge Switch or Director products use LC duplex connectors

with a PC finish. The connector at the opposite end of the cable must be of either LC or SC type,

depending on the requirements of the connected device.

For a list of supported operating systems, see the HP StorageWorks SAN design reference guide,

available on the following HP website:

http://www.hp.com/go/SANdesignguide

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Director and Edge Switch release notes (09.08.03)