Configuring Fc-Redirect V2 Mode - Cisco MDS 9000 series Configuration Manual

Chapter 2 Getting Started
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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Configuring FC-Redirect v2 Mode

To enable the v2 mode in FC-Redirect, use the fc-redirect version2 enable command in configuration
mode. To disable the v2 mode in FC-Redirect, use the no form of the command.
This command is used to increase scalability of FC-Redirect. Disabling v2 mode after it is enabled in
the fabric is not recommended. However, if you want to disable v2 mode, you cannot disable it until all
FC-Redirect configurations are deleted. FC-Redirect configurations can be deleted only by deleting all
corresponding application configurations.
The MDS switches not running Cisco NX-OS 3.3(1c) and later cannot be added to the fabric after the v2
mode is enabled. If the switches are added, all further FC-Redirect configuration changes will fail across
the fabric. This could lead to traffic disruption for applications such as IOA, SME, and DMM.
Use the show fc-redirect configs command to see the list of applications that create FC-Redirect
configurations.
If v2 mode is enabled in the fabric and you want to move a switch to a different fabric, use the clear
fc-redirect decommission-switch command before moving the switch to a different fabric. If the mode
is not enabled, all switches in the new fabric will be converted to v2 mode automatically.
Ensure that there are no fabric changes or upgrades in progress. For more information see
Note
Requirements" section on page
all the switches in the fabric.
To enable v2 mode in FC-Redirect, follow these steps:
Enter the following command:
Step 1
switch# fc-redirect version2 enable
Step 2 Enter yes.
Please make sure to read and understand the following implications
before proceeding further:
1) This is a Fabric wide configuration. All the switches in the
fabric will be configured in Version2 mode.Any new switches
added to the fabric will automatically be configured in version2
mode.
2) SanOS 3.2.x switches CANNOT be added to the Fabric after Version2
mode is enabled. If any 3.2.x switch is added when Version2 mode
OL-20708-01, Cisco MDS NX-OS Release 5.0(1a)
The targets must be connected to a FC-Redirect-capable switch running Cisco MDS NX-OS Release
4.2(1) or later. The hosts must be connected to a FC-Redirect-capable switch running Cisco MDS
SAN-OS Release 3.3(1c) or later.
32 targets per MSM-18/4 Module can be FC-Redirected.
In FC-Redirect v2 mode, up to 128 hosts per target are supported. If you do not enable FC-Redirect
v2, this is limited to 16 hosts per target.
CFS is enabled by default. Ensure that the CFS is enabled on the switches that have the host and the
target connected. Also ensure that the CFS is not disabled on switches that are part of the IOA
cluster.
Advanced zoning capabilities like quality of service (QoS), logical unit number (LUN) zoning, and
read-only LUNs must not be used for FC-Redirect hosts and targets.
1-5. Use the show fc-redirect peer-switches command (UP state) to see
Cisco MDS 9000 Family I/O Accelerator Configuration Guide

Configuring FC-Redirect v2 Mode

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