The two virtual disks -- one on the local storage array and one on the remote storage array -- essentially function as a single entity and
allow you to manage the pair in tandem, not as two individual virtual disks.
Guidelines for choosing virtual disks in a replicated pair
The following guidelines apply:
•
Only standard virtual disks can be used in a replicated pair. Thin provisioned or snapshot virtual disks (any type) cannot be used.
•
The Remote Replication premium feature must be enabled and activated on the local and remote storage arrays used for replication
before creating replication pairs or Remote Replication groups.
•
Local and remote storage arrays must be connected using supported Fibre Channel or iSCSI connections.
•
The remote storage array must contain a virtual disk that is greater than or equal to the capacity of the primary virtual disk on the local
storage array.
•
Creating a replicated pair requires you to use the AMW of the local storage array and the AMW of the remote storage array to complete
the creation process. Make sure that you have access to both storage arrays.
Creating replicated pairs
This procedure describes how to create the remote replicated pair on an existing remote replication group. To create a new Remote
Replication group, see Creating a Remote Replication Group.
1
In the AMW of the local storage array, select the
Storage & Copy Services
tab.
2
Select
Copy Services
>
Remote Replication
>
Remote Replication
>
Replication Group
>
Create Replication Pair.
The
Select Remote Replication Group
window is displayed.
NOTE:
If the local storage array does not contain any Remote Replication groups, you must create one on the local storage
array before proceeding.
3
Select an existing Remote Replication group, then click
Next
.
4
In the
Select Primary Virtual Disk
window, select one of the following:
•
Select an existing virtual disk on the local storage array to serve as the primary virtual disk in the replicated pair and click
Next
. Go
to step 4.
•
Select the option to create a new virtual disk and click
Next
. See Creating a Standard Virtual Disk.
5
In the
Select Repository
window, select whether you want to create the replication repository automatically or manually:
•
Automatic — Select
Automatic
and click
Finish
to create the replication repository with default capacity settings.
•
Manual — Select
Manual
and click
Next
to define the properties for the replication repository. Then click
Finish
.
NOTE:
The replication repository is normally created automatically during virtual disk pair creation. Manual repository
creation is recommended only for advanced storage administrators who understand physical disk consistency and optimal
physical disk configurations. The Automatic method is recommended.
6
Click
OK
when you see a message that the pair is successfully created.
Creating replicated pairs on the remote storage array
1
In the AMW of the local storage array, select the
Storage & Copy Services
tab.
2
Select
Copy Services
>
Remote Replication
>
Remote Replication
>
Replication Group
>
Complete Replication Pair.
The
Complete Remote Replicated Pair
window is displayed.
3
Do one of the following:
•
Select
Automatic
and select an existing disk pool or disk group from the table, then click
Finish
to automatically complete the
replicated pair creation process with the default secondary virtual disk selection and repository settings.
•
Select
Manual
, then click
Next
to choose an existing virtual disk as the secondary virtual disk and define the repository parameters
for the remote side of the remote replicated pair.
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Premium feature—Remote Replication
