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59265-02 A 3-1
3 Planning
Consider the following when planning a fabric:
Devices
Device Access
Performance
Feature Licensing
Multiple Chassis Fabrics
Switch Services
Internet Protocol Support
Security
Fabric Management
Devices
When planning a fabric, consider the number of devices and the anticipated
demand. This will determine the number of ports that are needed and in turn the
number of switches.
Consider the transmission speeds of your HBAs and SFPs. The switch ports 0–19
support 1-Gbps, 2-Gbps, 4-Gbps, and 8-Gbps transmission speeds depending on
the SFP.
Consider also the distribution of targets and initiators. An F_Port supports a single
device. An FL_Port can support up to 126 devices in an arbitrated loop.
NOTE:
Setting an SFP port to 1-Gbps that has an 8-Gbps SFP transceiver will down
the port.