To configure asynchronous mirroring, you create a mirrored
pair that includes a primary volume on the local array and a secondary
volume on the remote array.
Before you create a mirrored pair, meet
the following requirements for
SAN Manager :
Also be sure to
meet the following requirements for storage arrays:
- Each storage array must
have two controllers.
- The two storage arrays must be discovered in SAN Manager .
- Each controller in both the
primary array and secondary array must have an Ethernet management
port configured and must be connected to your network.
- The storage arrays have a minimum firmware version of 11.50. (They
can each run different OS versions.) Mirroring setup is different
when using SAN Manager 4.1 and earlier versus 4.2 and later, as well
as System Manager 11.60.1 and earlier vs 11.60.2 and later.
If your controllers are using System Manager 11.50–11.60.1,
select the initiator array and click Launch to open the browser-based
System Manager and configure mirroring from there.
If your controllers are using System Manager 11.60.2 or later,
mirroring configuration is performed entirely from SAN Manager 4.2
or later.
- You must know the password
for the local and remote storage arrays.
- You must have enough free
capacity on the remote storage array to create a secondary volume
equal to or greater than the primary volume that you want to mirror.
- Your local and remote storage
arrays are connected through a Fibre Channel fabric or iSCSI interface.
- You have created both the primary and secondary volumes that you
want to use in the asynchronous mirror relationship.
The process
to create an asynchronous mirrored pair is a multi-step procedure.