HP StorageWorks 2/140 director release notes - Page 6

Supported Configurations, RP505ENU.EXE - Windows installation file for Acrobat Reader 5.0

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Supported Configurations • Acrobat - RP505ENU.EXE - (Windows installation file for Acrobat Reader 5.0 with Search) 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)-Theoretically, the ISL limit per Director 2/64 is 32 and for Director 2/140 is 70. The maximum supported number of ISLs per director is half of the director ports. 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 7. The maximum supported hop count in a single path through a fabric is 3. 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. 6 director release notes

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Supported Configurations
6
director release notes
•
Acrobat
—
RP505ENU.EXE – (Windows installation file for Acrobat Reader 5.0 with
Search)
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)—Theoretically, the ISL limit per
Director 2/64 is 32 and for Director 2/140 is 70. The maximum supported number
of ISLs per director is half of the director ports. 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 7. The maximum supported hop count in
a single path through a fabric is 3. 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.