Linking a Virtual Device with a Physical Device

After creating a virtual device and configuring it as part of a zone, you can define the primary device for it using the link command, which is also used to fail over to the secondary device.

Note     When a link operation fails over to the secondary device, the virtual device is taken offline, and then brought online.

Prerequisites

As of MDS NX-OS Release 4.1(1a), the following conditions must be considered before linking a device:

• If you link to the secondary device which is currently active because of failover, the primary tag is moved to the secondary device and the secondary device becomes the primary device.
• When the secondary device is active, if you link to a third device, and if the fallback attribute was not configured, the third device becomes the primary device but the secondary device continues to be the active device.
• When the secondary device is active, if you link to a third device, and if the fallback attribute was configured, then the third device becomes the primary device as well as the active device.

Detailed Steps

To link a virtual target with a physical target, follow these steps:

1. Click the Real Devices tab and then click the Create Row icon.
2. Select the Virtual Device ID from the pull-down list or enter an existing ID for the virtual target that you are linking with a physical target.
3. Select the Real Device ID of the physical target that you are linking with the virtual target.
4. Click either the pWWN or deviceAlias radio button, and select the appropriate pWWN or device alias from the pull-down menu. The Name field is automatically populated when you select the pWWN or device alias.
5. Click either the primary or secondary radio button for the Map Type.
6. Click the CFS icon to save and distribute these changes, or click Close to discard any unsaved changes.

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