Create asynchronous mirrored pair

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 :

  • The Web Services Proxy service must be running.

  • SAN Manager must be running on your local host through an HTTPS connection.
  • SAN Manager must be showing valid SSL certificates for the storage array. You can accept a self-signed certificate or install your own security certificate using SAN Manager and navigating to Certificate > Certificate Management.
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.

  1. Step 1: Create or select a mirror consistency group
    You can create a new mirror consistency group or select an existing one.
  2. Step 2: Select the primary volume
    Select the primary volume that you want to use in the mirror relationship and allocate its reserved capacity.
  3. Step 3: Select the secondary volume
    Select the secondary volume that you want to use in the mirror relationship and allocate its reserved capacity.
Parent topic: How tos