Synchronous mirroring - What do I need to know before creating a mirrored pair?

Your storage array must contain at least one mirror consistency group.

In addition, make sure of the following:

• 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.
• You must have two storage arrays.
• Each storage array must have two controllers.
• You must know the password for the local and remote storage arrays.
• Your local and remote storage arrays must be connected through a Fibre Channel fabric or iSCSI interface.

• You must have discovered the two storage arrays you want to mirror data between. Then, from

  SAN Manager , you select the primary volume's storage array and click Launch to open the browser-based ThinkSystem System Manager .