Cisco Nexus 5000 Series Switch Fabric Manager Software Configuration Guide, NX-OS 4.0 (OL-16598-01, June 2008)

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Nexus 5000 Series Switch Fabric Manager Software Configuration Guide
OL-16598-01
Chapter 11 Configuring Domain Parameters
FC IDs
About Persistent FC IDs
When persistent FC IDs are enabled, the following occurs:
• The current FC IDs in use in the fcdomain are saved across reboots.
• The fcdomain automatically populates the database with dynamic entries that the switch has learned
about after a device (host or disk) is plugged into a port interface.
Note If you connect to the switch from an AIX or HP-UX host, be sure to enable the persistent FC ID feature
in the VSAN that connects these hosts.
Note When persistent FC IDs are enabled, FC IDs cannot be changed after a reboot. FC IDs are enabled by
default, but can be disabled for each VSAN.
A persistent FC ID assigned to an F port can be moved across interfaces and can continue to maintain
the same persistent FC ID.
Enabling the Persistent FC ID Feature
To enable the persistent FC ID feature using Fabric Manager, perform this task:
Step 1 Expand Fabricxx > VSANxx, and then choose Domain Manager in the Logical Domains pane for the
fabric and VSAN that you want to enable the Persistent FC ID feature for.
You see the running configuration of the domain in the Information pane.
Step 2 Click the Persistent Setup tab and check the enable check box for each switch in the fabric that will
have persistent FC ID enabled.
Step 3 Click the Apply Changes icon to save these changes.
Persistent FC ID Configuration Guidelines
When the persistent FC ID feature is enabled, you can enter the persistent FC ID submode and add static
or dynamic entries in the FC ID database. By default, all added entries are static. Persistent FC IDs are
configured on a per-VSAN basis.
When manually configuring a persistent FC ID, follow these requirements:
• Ensure that the persistent FC ID feature is enabled in the required VSAN.
• Ensure that the required VSAN is an active VSAN. Persistent FC IDs can only be configured on
active VSANs.
• Verify that the domain part of the FC ID is the same as the runtime domain ID in the required VSAN.
If the software detects a domain mismatch, the command is rejected.
• Verify that the port field of the FC ID is 0 (zero) when configuring an area.