Adding Redundancy Interfaces to an HA Pair

This procedure describes how to add a second redundancy interface to each appliance in an existing HA pair of appliances. The procedure does not cause loss of client service, however, redundancy must be disabled for a period of time during the change.

For more information about redundancy interfaces, refer to Configuring Redundancy Parameters.

Before you Begin

Before starting this procedure, verify the following:

• You have a redundant pair of appliances deployed using an active/active or active/standby redundancy model. In this example, the appliances are deployed in a active/standby redundancy model and the primary and backup appliances are named solace-primary and solace-backup respectively.
• The appliances are deployed with a SolOS version that includes support for multiple redundancy interfaces (SolOS 9.5.0+).
• The message spool is enabled as primary on the primary appliance and backup on the backup appliance.
• The redundancy status is Up for both appliances.
• Both the primary and backup appliances are active for their primary virtual router.
• Auto-revert is disabled on both appliances.
• A single redundancy interface is configured on each appliance. In this example 1/6/1 is the only redundancy interface configured on each appliance.
• The second interface you want to add has static, primary, and/or backup IP addresses configured (as needed) and operational. In this example 1/6/2 is to be added as a second redundancy interface for each appliance.

Step 1: Disable Redundancy on the Primary Appliance

To disable redundancy on the primary appliance, enter the following commands:

solace-primary(configure)# redundancy
solace-primary(configure/redundancy)# shutdown

Step 2: Add the Redundancy Interface to the Primary Appliance

To add the redundancy interface to the primary appliance:

1. Assign the redundancy interface.

   solace-primary(configure/redundancy)# vrrp
   solace-primary(configure/redundancy/vrrp)# interface 1/6/2
   

2. Specify the appropriate failover criteria. For more information about the failover criteria, refer to Specifying the Redundancy Failover Criteria .

   solace-primary(configure/redundancy/vrrp)# failover-criteria {any-fail | all-fail}

Step 3: Disable Redundancy on the Backup Appliance

To disable redundancy on the backup appliance, enter the following commands:

solace-backup(configure)# redundancy
solace-backup(configure/redundancy)# shutdown

Step 4: Add the Redundancy Interface to the Backup Appliance

To add the redundancy interface to the backup appliance:

1. Assign the redundancy interface. For more information about redundancy interfaces, refer to Configuring Redundancy Parameters.

   solace-backup(configure/redundancy)# vrrp
   solace-backup(configure/redundancy/vrrp)# interface 1/6/2
   

2. Specify the appropriate failover criteria. For more information about the failover criteria, refer to Specifying the Redundancy Failover Criteria .

   solace-backup(configure/redundancy/vrrp)# failover-criteria {any-fail | all-fail}

Step 5: Enable Redundancy on Both Appliances

To enable redundancy on the primary appliance, enter the following commands:

solace-primary(configure)# redundancy
solace-primary(configure/redundancy)# no shutdown

To enable redundancy on the backup appliance, enter the following commands:

solace-backup(configure)# redundancy
solace-backup(configure/redundancy)# no shutdown

Step 6: Verify Redundancy is Working Correctly

To verify redundancy is working correctly on both appliances, issue the following show command and verify that the Redundancy Status is Up:

solace-primary(configure)# show redundancy

solace-backup(configure)# show redundancy