Using Data Transfer

Disabling data transfer makes sure that the is no longer available for I/O operations.


Attention:

Possible loss of data access – If you disable data transfer while a is using that are owned by this controller, the I/O directed to this controller path is rejected. Make sure that either the logical drives are not in use, or that a is installed on all of the hosts that use these logical drives.


Attention:

Possible loss of data access – When data transfer is disabled, logical drives that are owned by the affected controller are likely to be completely inaccessible by any attached hosts. Some host multi-path drivers might initiate a logical drive ownership transfer to the opposite controller, but that transfer is not guaranteed.


Important:

Use this option only under the guidance of a representative.

  1. To perform the specified task, go to the indicated step:
  2. To disable data transfer, perform these substeps:
    1. In the Physical pane, select a controller, and select Advanced >> Recovery >> Disable Controller Data Transfer .
    2. Type yes in the text box, and click OK.
    The controller no longer accepts I/O and is marked with a dashed red border in the Physical pane. If a multi-path driver is in use, I/O will be sent to the other controller path, initiating a logical drive ownership transfer.
  3. To enable data transfer, in the Physical pane, select a controller, and select Advanced >> Recovery >> Enable Controller Data Transfer .
    The controller resumes normal operation and accepts I/O.