FW V06.02.00/HAFM SW V08.02.00 HP StorageWorks Edge Switch Release Notes (AA-RTDZF-TE, September 2004)

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7HP StorageWorks Edge Switch release notes
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Supported configurations
Operation of multiple switches in a fabric topology is subject to the following
topology limits. Consider the impact of these limits when planning the fabric.
Note: For more information about planning the fabric, refer to
HP StorageWorks SAN
High Availability Planning Guide
.
Fabric elements—Each fabric element is defined by a unique domain ID that
ranges between 1 and 31; therefore, the theoretical limit of interconnected
switches in a single fabric is 31. The supported limit of interconnected
switches in a single fabric is 24. Because this number 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, refer to the product publications, or contact
your HP authorized service representative.
Number of Interswitch Links (ISLs)—The maximum supported number of
ISLs for edge switches is all available switch ports. For redundancy, at least
two ISLs should connect any two switch-class fabric elements. Because this
number is subject to change, contact your HP authorized service
representative for the current number of ISLs supported per 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.
Note: 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.