Manual Chapter : BIG-IQ quorum DCD in an auto failover HA configuration fails

Applies To:

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BIG-IQ Centralized Management

  • 7.0.0
Manual Chapter

BIG-IQ quorum DCD in an auto failover HA configuration fails

You can select the HA error alarm from the
Monitoring
ALERTS & NOTIFICATIONS
Monitoring ALERTS & NOTIFICATIONS
General Settings
screen to notify you the BIG-IQ quorum DCD 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
.
A quorum data collection device (DCD) makes the deciding vote for which BIG-IQ will become active if communication is disrupted between the components of the BIG-IQ high availability configuration. If the quorum DCD comes back up (even up to 10 hours later), it will automatically rejoin the HA auto failover configuration. But when the quorum DCD is down, automatic failover cannot occur. It's important to get the quorum DCD back online as quickly as possible. If the quorom DCD is unrepairable, perform these steps.
  1. From the active BIG-IQ device, at the top of the screen, click
    System
    .
  2. On the left, click
    BIG-IQ HA
    .
  3. Click the
    Remove Standby
    button.
  4. Click the
    Save & Close
    button.
  5. Click the
    Add Standby
    button.
  6. 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.
  7. Type the local administrative
    Username
    and
    Password
    for the system.
  8. Type the
    Root Password
    for the system.
  9. For the Failover setting, select
    Auto Failover
    .
  10. Select the quorum DCD.
  11. Click the
    Add
    button at the bottom of the screen.