Use the Create Enhanced Remote Mirroring Wizard to create a copy of a on another secondary . Creating a copy of a at a remote location gives you a backup of your data that you can access in case of catastrophic data loss at the primary
site.
The Create Enhanced Remote Mirroring Wizard helps you to quickly define a primary logical drive and a and to synchronize the data between the two logical drives. To learn more about the Create Enhanced Remote Mirroring Wizard
before you start, see the “Preview of the Create Enhanced Remote Mirroring Wizard” section in this topic.
Attention:
Risk of application errors – You cannot create a mirror relationship if the primary logical drive contains unreadable sectors. Furthermore, if an unreadable
sector is discovered during a mirroring operation, the mirror relationship fails.
Keep these guidelines in mind when you use Enhanced Remote Mirroring:
Not all have the capability to create remote logical drive mirrors and support . Controllers must have dual, -side interface ports to use this premium feature. For more information about your controllers, refer to your hardware documentation.
You cannot create a secondary logical drive in Enhanced Remote Mirroring from a or a in a .
Reservations on secondary logical drives are blocked. Reservations on primary logical drives are allowed.
In a storage subsystem that has DS4500 or DS4400 controller modules, up to 64 logical drives can participate in mirror relationships.
In previous versions of the storage management software, a maximum of 32 logical drives could participate in mirror relationships.
To accommodate the increase, you must upgrade any that were created prior to the current version of storage management.
Before you use this wizard, make sure that the following requirements have been met:
Make sure that the storage subsystems containing the two logical drives you want to mirror are connected together through
a fabric interface.
Make sure that you enable the premium feature on both storage subsystems (primary and secondary) by using a .
Make sure that you activate the Enhanced Remote Mirroring premium feature on both storage subsystems (primary and secondary)
by selecting Storage Subsystem >> Enhanced Remote Mirroring >> Activate.
Note:
You can launch the Create Enhanced Remote Mirroring Wizard if you have not activated the Enhanced Remote Mirroring premium
feature on the local storage subsystem. However, the Enhanced Remote Mirroring Not Activated error dialog appears. From this dialog, click Activate, and the Activation Wizard starts. After you have activated the feature on the storage subsystem, restart the Create Enhanced
Remote Mirroring Wizard.
Make sure that the secondary storage subsystem contains a logical drive that has a capacity that is greater than or equal
to the capacity of the primary logical drive in the mirrored pair.
Accessing the Create Enhanced Remote Mirroring Wizard
To access the Create Enhanced Remote Mirroring Wizard, in the Logical pane, select a logical drive, and select Logical Drive >> Enhanced Remote Mirroring >> Create.
The Create Enhanced Remote Mirroring - Introduction dialog appears. Follow the directions on each of the dialogs, and click Next to move to the next dialog.
Preview of the Create Enhanced Remote Mirroring Wizard
You must first enable the Enhanced Remote Mirroring premium feature and activate it on both the primary storage subsystem
and the secondary storage subsystem before you can create a remote logical drive mirror. This list describes some of the dialogs
that you will encounter when you use the Create Enhanced Remote Mirroring Wizard:
The Create Enhanced Remote Mirroring Wizard - Introduction dialog describes the tasks that you must complete before you create a remote logical drive mirror.
The Create Enhanced Remote Mirroring Wizard - Select Storage Subsystem dialog lets you select the storage subsystem that contains the secondary logical drive to be included in the mirrored pair.
The Create Enhanced Remote Mirroring Wizard - Select Secondary Logical Drive dialog lets you select the secondary logical drive to be included in the mirrored pair.
The Create Enhanced Remote Mirroring Wizard - Set Write Mode dialog lets you set the and options for the mirrored pair.
The Create Enhanced Remote Mirroring Wizard - Set Synchronization Settings dialog sets the level for the mirrored pair.