Manual Chapter : Reestablishing a BIG-IQ auto failover HA configuration after failover

Applies To:

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BIG-IQ Centralized Management

  • 7.0.0
Manual Chapter

Reestablishing a BIG-IQ auto failover HA configuration after failover

You can select the
HA error
alarm from the
Monitoring
ALERTS & NOTIFICATIONS
General Settings
screen to notify you if a BIG-IQ in your HA auto failover configuration becomes unresponsive. If an issue occurs, an HA Alert appears on the Alert Properties screen as
HA status has changed from OPERATIONAL to FAILED.
When an active BIG-IQ automatically fails over, the standby BIG-IQ becomes standalone and continues to manage your BIG-IP devices. After failover, you'll need to reestablish your BIG-IQ auto HA configuration.
  1. Log into the command line of the BIG-IQ that failed and type the following command:
    ha_reset -f <discovery IP>
    .
  2. From the currently-active standalone BIG-IQ, at the top of the screen, click
    System
    .
  3. On the left, click
    BIG-IQ HA
    .
  4. Click the
    BIG-IQ HA Settings
    button.
  5. Click the
    Remove HA Config
    button.
  6. Click the
    Save & Close
    button.
  7. Click the
    Add Standby
    button.
  8. In the
    IP Address
    field, type the discovery address you want to set up as the standby BIG-IQ.
    This is the same IP address the peers in a high availability configuration use to communicate.
    IPv6 short form addresses are not supported.
  9. Type the local administrative
    Username
    and
    Password
    for the system.
  10. Type the
    Root Password
    for the system.
  11. For the
    Failover setting
    , select
    Auto Failover
    .
    For auto failover to work, you must have the following ports open on the active and standby BIG-IQ as well as the quorum DCD.
    • TCP port 2224
    • UDP port 5404
    • UDP port 5405
  12. Click the
    Set Up Quorum Device
    button, select the quorum DCD from the list, and type its
    Root Password
    .
  13. If you want BIG-IQ to use a floating IP address when automatically failing over to the standby BIG-IQ, select the
    Enable Floating IP
    Enable
    check box and type the address.
    The floating IP address must be on the same network (this configuration uses Gratuitous ARP packets) as the active and standby BIG-IQ systems’ local management address (interface eth0) and not any of the discovery self IP addresses. This does not restrict HA traffic; HA traffic can be on any of the available interfaces. Floating IP addresses are not supported if your active and standby BIG-IQ systems are in a public cloud environment, such as AWS, Azure, or VMware.
    If you choose not to use a floating IP address and the active BIG-IQ fails over, you'll have to provide all users access to the newly active BIG-IQ by providing the IP address.
  14. Click the
    Add
    button to add this device to this high availability configuration.
The active BIG-IQ discovers the standby BIG-IQ and displays its status.