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HP 316095-B21 - StorageWorks Edge Switch 2/24 Release Release

Firmware 09.06.02

Firmware 09.06.02 is the latest ﬁrmware released for the HP M-Series Edge Switches and Directors. This

ﬁrmware is common for all M-Series fabric products, except the McDATA 4Gb SAN Switch for HP

p-Class BladeSystem, which has separate ﬁrmware.

The ﬁrmware is available on the following HP website:

networking/index.html. Select Retired Products and navigate to your switch model, and then to

Download drivers and software.

For more information on upgrading ﬁrmware versions, see the appropriate Director or Edge Switch

service manual.

Supported conﬁgurations

Operating multiple switches in a fabric topology is subject to topology limits. Consider the impact of the

following topology limits when planning the fabric:

•

Fabric elements—Each fabric element is deﬁned by a unique domain ID that ranges from 1 to 31;

therefore, the theoretical limit of interconnected Directors in a single fabric is 31. The supported

limit of interconnected switches in a single fabric is 24. The supported limit of interconnected

switches in a single fabric can be increased to 31, provided that any Edge Switch 2/16, Edge

Switch 2/32, or Director 2/64 in the fabric is deployed at the edge of the fabric. However,

because this is subject to change, contact your HP-authorized service representative for the current

number of interconnected switches supported in a single fabric.

•

Inhomogeneous fabric—To determine if interoperability is supported for a product, or if restrictions

apply, see the product publications or contact your HP-authorized service representative.

•

Number of interswitch links (ISLs)—The maximum number of ISLs supported is 75% of installed

ports for the Director 2/64, and 100% of installed ports for the Director 2/140. The maximum

number of ISLs supported 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 information is subject to change, contact your HP-authorized service representative for the

current number of ISLs supported for each Director or Edge Switch.

•

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

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, 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.

http://h18006.www1.hp.com/storage/

HP StorageWorks SAN design reference guide