HP 316095-B21 - StorageWorks Edge Switch 2/24 Примечание к выпуску - Страница 5

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HP 316095-B21 - StorageWorks Edge Switch 2/24 Примечание к выпуску
Number of interswitch links (ISLs)—The maximum supported number of ISLs is
75% of installed ports for the Director 2/64, and 50% of installed ports for the
Director 2/140. The maximum supported number of ISLs for Edge Switches is all
available switch ports. For redundancy, at least two ISLs should connect any two
Edge Switch or Director-class fabric elements. Because this number is subject to
change, contact your HP-authorized service representative for the current number
of ISLs supported per Director or Edge Switch.
Hop count—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 number is subject to
change, contact your HP-authorized service representative for the current hop
count supported by a single fabric path.
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.

Cable requirements

NOTE:
Optical cables for Director and Edge Switch products must be ordered separately.
For cables measuring up to 500 meters (1 Gb/s) or 300 meters (2 Gb/s), use multi-mode
Fibre Channel cables. For longer cables, use single-mode Fibre Channel cables.
Multi-mode 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. Multi-mode cables should use 50/125 optical fibers, and
single-mode cables typically use 9/125 optical fibers for distances up to 10 km.
Verify that connectors interfacing with the Director or Edge Switch products use LC duplex
connectors with a PC finish. In addition, 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.
Important information
This section describes important information related to the Director or Edge Switch
product.
Minor code enhancements and fixes in firmware 08.01.00
This release of firmware 08.01.00 incorporates some minor code enhancements and
fixes, and is not a mandatory upgrade, though HP recommends that all Directors and
Edge Switches be upgraded to this version of firmware.
Advanced Fabric Diagnostics enhancements
The following enhancements have been made to Advanced Fabric Diagnostics features:
Director and Edge Switch release notes
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