How to have all configuraton synchronized with primary node in HA system for exceptional use case

How to have all configuraton synchronized with primary node in HA system for exceptional use case

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Article ID: CTX270917

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Description

This article describes how to avoid configuration mismatch or lose, which is triggered by exceptional use cases, in ADC HA system.

Instructions

Exceptional cases
  • secondary node is recovered from sometime down during which some configuration has been modified or new settting has been configured on primary node
  • device replacement

Steps to be executed one by one 
1. wait until HA replication status is good after system recovers from exceptional cases
    following is a sample which indicate the status is ok
   > show ha node
1)      Node ID:      0
        IP:   1.1.1.1 (12.1-51.19-1)
        Node State: UP
        Master State: Primary
        Fail-Safe Mode: OFF
        INC State: DISABLED
        Sync State: ENABLED
        Propagation: ENABLED
        Enabled Interfaces : 1/1
        Disabled Interfaces : None
        HA MON ON Interfaces : 1/1
        HA HEARTBEAT OFF Interfaces : None
        Interfaces on which heartbeats are not seen : None
        Interfaces causing Partial Failure: None
        SSL Card Status: NOT PRESENT
        Hello Interval: 200 msecs
        Dead Interval: 3 secs
        Node in this Master State for: 0:1:3:38 (days:hrs:min:sec)
2)      Node ID:      2
        IP:   1.1.1.2
        Node State: UP
        Master State: Secondary
        Fail-Safe Mode: OFF
        INC State: DISABLED
        Sync State: SUCCESS
        Propagation: ENABLED
        Enabled Interfaces : 1/1
        Disabled Interfaces : None
        HA MON ON Interfaces : 1/1
        HA HEARTBEAT OFF Interfaces : None
        Interfaces on which heartbeats are not seen : None
        Interfaces causing Partial Failure: None
        SSL Card Status: NOT PRESENT

Local node information:
        Critical Interfaces: 1/1
 Done

2.  run following command from any of node to synchronize files related to system configuration from the primary node to the secondary one
     sync HA files all

3. run following command from any of node to copy all system configuration from the primary node to the secondary one
     force HA sync -force -save yes

 

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