Changing Active/Active Pair to Active/Standby

This section discusses the steps to change the redundancy mode of a high-availability (HA) Solace PubSub+ appliance pair from active/active to active/standby. Solace recommends deploying appliances in the active/standby model, see Recommended Redundancy Model for more information.

Before you begin

Changing an active/active redundant pair to active/standby will disconnect all clients connected to the backup appliance; clients connected to the primary appliance will not be affected. During the duration of the procedure, redundancy will be shutdown, and failover to the backup appliance will not be possible. Once the configuration is complete, redundancy status will be up, and it's recommended that you test controlled replication failover. To perform a controlled replication failover, see Performing a Controlled Failover.

Steps

To convert an active/active redundant appliance pair to active/standby, complete the following tasks for the primary and backup appliances.

Primary Appliance

  1. Remove redundancy from the primary appliance: 
    solace1# configure
    solace1(configure)# redundancy
    solace1(configure/redundancy)# shutdown
    solace1(configure/redundancy)# no vrrp-vrid backup
  2. Remove the backup message backbone interface : 
    solace1(configure)# ip vrf msg-backbone
    solace1(configure/ip/vrf)# interface <backup-interface>
    solace1(configure/ip/vrf/interface)# shutdown
    solace1(configure/ip/vrf/interface)# exit
    solace1(configure/ip/vrf)# no interface <backup-interface>
  3. Set the appliance's redundancy role to primary and enable redundancy: 
    solace1(configure)# redundancy
    solace1(configure/redundancy)# active-standby-role primary
    solace1(configure/redundancy)# no shutdown

Backup Appliance

  1. Remove redundancy configuration from the backup appliance: 
    solace2# configure
    solace2(configure)# redundancy
    solace2(configure/redundancy)# shutdown
    solace2(configure/redundancy)# no vrrp-vrid primary
  2. Remove the primary message backbone interface: 
    solace2(configure)# ip vrf msg-backbone
    solace2(configure/ip/vrf)# interface <primary-interface>
    solace2(configure/ip/vrf/interface)# shutdown
    solace2(configure/ip/vrf/interface)# exit
    solace2(configure/ip/vrf)# no interface <primary-interface>
  3. Set the appliance's redundancy role to backup and enable redundancy: 
    solace2(configure)# redundancy
    solace2(configure/redundancy)# active-standby-role backup
    solace2(configure/redundancy)# no shutdown