Downgrading With Attributes Configured; Downgrading With Virtual Initiators Configured; Downgrading With Sdv Lun Zoning Configured; Sdv Configuration Example - Cisco AP776A - Nexus Converged Network Switch 5020 Configuration Manual

SDV Configuration Example

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

Downgrading with Attributes Configured

As of MDS NX-OS Release 4.1(1a), SDV supports failover and fallback attribute configuration.
Downgrading to an earlier release requires you to remove the attribute configurations before
downgrading.

Downgrading with Virtual Initiators Configured

If SDV virtual initiators are configured, you will be unable to downgrade to SAN-OS Release 3.1(2).
This incompatibility only warns before a downgrade. We recommend that you remove the virtual
initiator configuration or shut down the initiator port so that there are no inconsistencies in the
downgraded version.
We also recommend that you trigger a manual discovery on all the switches before configuring the
Note
virtual initiators; in fact, you can trigger the discovery before proceeding to the downgrade by entering
the following commands:
switch# discover scsi-target local os all
discovery started
switch# discover scsi-target remote os all
discovery started
switch#

Downgrading with SDV LUN Zoning Configured

Following are the downgrade scenarios when SDV LUN zoning is configured:
•
•
•
In each of these cases, a configuration check is registered to prevent users from downgrading to SAN-OS
Release 3.1(2). This incompatibility will be disruptive if you proceed with the downgrade.
To avoid the configuration check, delete all the LUN zone members from SDV zones, and then activate
the zone set before the downgrade.
SDV Configuration Example
The following example shows all tasks (required and optional) associated with configuring SDV:
Step 1 Enter configuration mode.
switch# config t
Enter configuration commands, one per line.
Enable SDV.
Step 2
switch(config)# feature sdv
Locate the pWWNs of the devices in the VSAN (vsan 2). Record the pWWNs, as you will need them in
Step 3
the next step when you create a virtual device.
Cisco MDS 9000 Family CLI Configuration Guide
21-14
Real initiator and SDV virtual target with LUN
SDV virtual initiator and real target with LUN
SDV virtual initiator and SDV virtual target with LUN
Chapter 21
End with CNTL/Z.
OL-18084-01, Cisco MDS NX-OS Release 4.x
SAN Device Virtualization