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HP StorageWorks 2/140 - Director Switch Примечание к выпуску
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
directors 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 is
75% of installed ports for the Director 2/64, and 50% of installed ports for
the Director 2/140. For redundancy, at least two ISLs should connect any
two 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.
•
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.
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