WDM
connection
WDM
connection
25145b
Fabric A1
Local
Fabric A1
Remote
Fabric B1
Local
Fabric B1
Remote
Figure 80 Fully redundant WDM configuration using two long-distance fiber optic links
.
The configuration in Figure 80 is high cost, but is fully redundant.
HP supports the following third-party WDM products and configurations:
• CWDM and DWDM systems supported by the switch vendors.
• WDM devices that are configurable to a data rate of 1 Gb/s, 2 Gb/s, 4 Gb/s, 8 Gb/s, or 10
Gb/s
• Up to 500 km at 1 Gb/s, over a WDM link (switch model dependent). On certain Fibre Channel
switches, there may be reduced performance at this distance. See
“Storage product interface and transport distance rules” on page 171.
• Performance levels depend on the number of buffers available in the switch and the amount of
application data.
For information about HP-certified third-party WDM products, see
“Certified third-party WDM, iFCP, and SONET products” on page 352.
Extended fabric settings for Fibre Channel switches
When extending fabrics with Fibre Channel long-distance transceivers or WDM, it is important to
maintain the performance of ISL connections. See “Features” on page 100 for information about the
B-series Extended Fabrics license.
B-series switch settings
An Extended Fabrics license is required for B-series switches when extending a fabric beyond 10 km.
See the HP StorageWorks Fabric OS 5.3x administrator guide for B-series extended fabric switch
settings, available at
http://h20000.www2.hp.com/bizsupport/TechSupport/DocumentIndex.jsp?contentType=SupportManual&
lang=en&cc=us&docIndexId=179111&taskId=101&prodTypeId=12169&prodSeriesId=1143936.
NOTE:
The HP C-series CWDM solution is not supported on B-series switches. See
“Certified third-party WDM products” on page 353 for B-series supported WDM devices.
SAN Design Reference Guide 287
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