Configure HA/DR parameters

This procedure describes how to configure HA/DR parameters, and can be performed any time after building an HA or DR cluster.

After a HA/DR is built, the options shown for option 13 of the Administration Interface are as follows:

Select an item or enter 'a' to abort:
1. View cluster status details
2. Remove HA configuration
3. Switch roles
4. View/Edit Cluster parameters

Note: Changing parameter values must be done from the primary appliance only. Viewing parameter values is supported from either the primary or secondary appliance.

To view / edit cluster parameters:

  1. From the primary appliance, connect to the ASMS Administration Interface. For details, see Connect to and Utilize the Administration Interface.

  2. In the Administration Interface, enter 13. A prompt similar to the following appears:

    Cluster status:
    1. Primary         |  10.10.10.14      |  Up (this appliance)  |  AFA, ABF, AFF
    2. Secondary (HA)  |  10.10.10.13      |  Up                   |  DB
                10.10.10.14 <-> 10.10.10.13 : Synced
    * VIP - 10.10.10.18

  3. Enter 4 to view / edit cluster parameters.

    The parameters and their current values are displayed, and the system asks whether you want to make any changes.

  4. Enter y to make changes.

    Each parameter appears, with the option to change the value. Make your changes as needed for each parameter, until a confirmation message appears.

    Note: When automatic failover is configured, if a ping does not arrive from the primary appliance within the configured Failover Over Timeout value, the secondary appliance automatically becomes active.

    Automatic failover is not supported for DR clusters. DR cluster nodes must have their roles switched manually, if needed. For details, see Manual Failover for DR.

  5. Enter y to confirm the changes.

    Your changes are applied, and a success message appears, along with the cluster status. A confirmation email is also sent to the Administrator user.