Using Data Transfer

Disabling Data Transfer ensures that the controller is no longer available for I/O operations.

If you perform this operation while a host is using logical drives owned by this controller, the I/O directed to this controller path will be rejected. Ensure that either the logical drives are not in use, or that there is a multi-path driver installed on all hosts using these logical drives.

When the multi-path driver detects an I/O error, the I/O will be sent to the other controller path which should initiate a logical drive ownership transfer.

Caution:

Use the Data Transfer option only when instructed to do so by technical support.

How to Disable Data Transfer

1

Select a controller in the Physical View; then, select either the Controller >> Data Transfer >> Disable pull-down menu option, or Data Transfer >> Disable from the right-mouse pop-up menu.

Result: The Confirm Data Transfer Disable dialog is displayed.

2

Type Yes in the box and select OK.

Result: The controller no longer accepts I/O and is marked with a dashed red border in the Physical View. If a multi-path driver is in use, I/O will be sent to the other controller path, initiating a logical drive ownership transfer.

How to Enable Data Transfer

Select a controller in the Physical View; then, select either the Controller >> Data Transfer >> Enable pull-down menu option, or Data Transfer >> Enable from the right-mouse pop-up menu.

Result: The controller resumes normal operation and accepts I/O.