About Persistent Fc Ids; Enabling The Persistent Fc Id Feature - Cisco AP776A - Nexus Converged Network Switch 5020 Configuration Manual
Cisco mds 9000 family cli configuration guide - release 4.x (ol-18084-01, february 2009)
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Chapter 18
Configuring Domain Parameters
S e n d d o c u m e n t a t i o n c o m m e n t s t o m d s f e e d b a c k - d o c @ c i s c o . c o m
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About Persistent FC IDs
When persistent FC IDs are enabled, the following consequences apply:
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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.
FC IDs are enabled by default. This change of default behavior from releases prior to Cisco MDS
Note
SAN-OS Release 2.0(1b) prevents FC IDs from being changed after a reboot. You can disable this option
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.
Persistent FC IDs with loop-attached devices (FL ports) need to remain connected to the same port in
Note
which they were configured.
Due to differences in Arbitrated Loop Physical Address (ALPA) support on devices, FC ID persistency
Note
for loop-attached devices is not guaranteed.
Enabling the Persistent FC ID Feature
To enable the persistent FC ID feature, follow these steps:
Command
Step 1
switch# config t
OL-18084-01, Cisco MDS NX-OS Release 4.x
About Persistent FC IDs, page 18-15
Enabling the Persistent FC ID Feature, page 18-15
About Persistent FC ID Configuration, page 18-16
Configuring Persistent FC IDs, page 18-17
About Unique Area FC IDs for HBAs, page 18-17
Configuring Unique Area FC IDs for an HBA, page 18-17
About Persistent FC ID Selective Purging, page 18-19
Purging Persistent FC IDs, page 18-19
The currently in use FC IDs 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.
Purpose
Enters configuration mode.
Cisco MDS 9000 Family CLI Configuration Guide
FC IDs
18-15
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