Use the Activate Remote Mirroring Wizard option to activate the Remote Mirroring feature on both the storage subsystem that contains the primary logical drive candidate and the storage subsystem that contains the secondary logical drive candidate. The wizard guides you through the major steps.
Important:
When the Remote Mirroring premium feature is in use, there are limits to the number of logical drives that are supported on a given storage subsystem. For the 1742-90U/90X and 1742-1RU/1RX storage subsystems, up to 256 logical drives are supported. For the 3552 storage subsystem, up to 128 logical drives are supported. Before activating the Remote Mirroring feature, verify that the number of configured logical drives on your storage subsystem is under the supported limit (keep in mind that activating the Remote Mirroring feature creates two mirror repository logical drives that count against the logical drive limit).
The 1742-90U/90X and 1742-1RU/1RX storage subsystems support up to 16 mirror definitions and the 3552 storage subsystem supports up to 8 mirror definitions
Ensure the switch fabric is appropriately configured before beginning this procedure.
Before continuing, make sure you have completed the following tasks:
Ensure the storage subsystems containing the two logical drives for which you want to create a mirror relationship are connected together through a Fibre Channel fabric interface.
Enable the Remote Mirroring feature on both storage subsystems (primary and secondary) using a feature key file.
Procedure
1
Select the Storage Subsystem >> Remote Mirroring >> Activate pull-down menu option, or select Remote Mirroring>>Activate from the right-mouse pop-up menu.
Result: The Activate Remote Mirroring - Introduction screen is displayed.
Follow the directions on each Wizard screen and select the Next button when you are ready to move to the next Wizard screen.
Note: Each Wizard screen has context-sensitive help. Select the Help button to receive help applicable for that particular screen.
3
After you have activated the Remote Mirroring feature, an Activate Remote Mirroring - Completed message will confirm the activation. Select OK to close the dialog.
Results:
Two mirror repository logical drives, one for each controller, are created as a resource for the controller managing the Remote Mirror.
Host port 2 on each controller is now dedicated to Remote Mirroring communication.
The dedicated host ports will not accept read/write requests from a host application.
You may now create a Remote Mirror.
Note: Before continuing, ensure that the Remote Mirroring feature is enabled and active on both the primary and secondary storage subsystems.
After enabling the Remote Mirroring feature and before creating a Remote Mirror, you activate the Remote Mirroring feature. The following describes some of the screens you will encounter when you use the Activate Remote Mirroring Wizard:
The Introduction screen allows you to select the free capacity or unconfigured capacity node on which to place the mirror repository logical drives.
The Activate Remote Mirroring - Create Array screen allows you to specify a new array where the mirror repository logical drives will reside, and to specify the RAID level of the array that will meet the mirror repository logical drive data storage and protection requirements.