Configuring geographic mirroring
Geographic mirroring is a subfunction of cross-site mirroring. To configure a high-availability solution by using geographic mirroring, you need to configure a mirroring session between the production system and the backup system.
Before configuring geographic mirroring, you
must have an active cluster, nodes, and CRG. The independent disk pools which
you plan to use for geographic mirroring must also be varied off (unavailable)
to complete configuration. The topic, Scenario: Geographic
mirroring, provides step-by-step instructions for setting up
a high-availability solution that is based on geographic mirroring.
To use the PowerHA® graphical interface
to configure geographic mirroring follow these steps:
- In a web browser, enter http://mysystem:2001, where mysystem is the host name of the system.
- Log on to the system with your user profile and password.
- Click PowerHA in the IBM Navigator for i window.
- On the PowerHA page, click Independent ASPs.
- On the Independent ASPs page, select Details ... from the context menu of the independent disk pool for which you want to configure geographic mirroring.
- On the Independent ASP Details page, select Configuring Mirroring ... from the context menu of the production copy of the independent disk pool.
- Follow the instructions in the Create Independent ASP wizard to create an independent disk pool.
To use the Configuration and Service graphical interface to configure geographic mirroring, follow the steps below. The Configuration and Service graphical interface does not show up if IBM PowerHA SystemMirror® for i licensed program is installed.
Configuration and Service graphical interface (IBM Navigator for i)
- Log on to the system with your user profile and password.
- Log on to the system with your user profile and password.
- Select Configuration and Service from your IBM Systems Director Navigator for i window.
- Select Disk Pools.
- Select the disk pool that you want to use as the production (source) copy.
- On the Independent ASP Details page, select Configure Mirroring... from the context menu of the production copy of the independent disk pool.
- 7.Follow the instructions in the Configure Mirroring wizard to configure geographic mirroring.