Changing a Secondary Mirrored Logical Drive to a Primary Logical Drive

Related Topics

Use this option to perform a role reversal between the two paired logical drives in a Remote Mirror . This option promotes a selected secondary logical drive to become the primary logical drive of the mirrored pair. If the associated primary logical drive can be contacted, the primary logical drive is automatically demoted to be the secondary logical drive. Use this option when a catastrophic failure has occured to the storage subsystem that contains the primary logical drive and you want to promote the secondary logical drive so that hosts can access data and business operations can continue.

Important:

Procedure

1

Select the secondary logical drive in the Logical View, then, select either the Logical Drive >> Remote Mirroring >> Change >> Role to Primary pull-down menu option, or Change >> Role to Primary from the right-mouse pop-up menu.

Result: The Change to Primary dialog is displayed.

2

Select Yes.

Results:

  • The secondary logical drive is promoted to be the primary logical drive in the Remote Mirror.
  • If the controller owner of the primary logical drive can be contacted, the primary logical drive is automatically demoted to be the secondary logical drive in the Remote Mirror.

Example

The above example of a Logical View shows the Secondary Logical Drive Accounting that is present in Storage Subsystem East.

After selecting the Secondary Logical Drive Accounting and using the Change >> Role to Primary option, the logical drive Accounting is displayed as a primary logical drive in the Logical View. The Secondary Logical Drive Accounting 2, from a remote storage subsystem, is displayed as a child node of the Primary Logical Drive Accounting node in the Subsystem Management Window.

Related Topics

Forcing a Secondary Logical Drive to Change to a Primary Logical Drive

Enabling Premium Features

Using the Activate Remote Mirroring Wizard