Veritas NetBackup™ Appliance High Availability Reference Guide

Last Published:
Product(s): Appliances (
Platform: NetBackup Appliance OS

Performance tuning for the FC disconnection

In a complete high availability (HA) configuration, when the NetBackup jobs are running, the Fibre Channel (FC) may be disconnected from the node where the virtual host name is running. It usually takes more than 25 minutes to invoke the automatic failover function.

You can reduce the response time as follows:

Reducing the interval of the time consuming parameters

  1. In the Java-based NetBackup Administration Console, expand NetBackup Management > Host Properties > Master Servers in the left pane.
  2. In the right pane, select the master server.
  3. On the Actions menu, click Properties.
  4. In the properties dialog box left pane, select Timeouts.
  5. Change the value of the Job retry delay to 1.

    The expected time interval for the services to be switched over is one minute.

  6. Change the value of the Schedule backup attempts to 12 tries per 1 hour.

    This change increases the retry frequency. In this case, the retry limitation may not cause the retry failure.

  7. Click Apply to make the changes take effect.

After these changes take effect, the automatic failover for the FC disconnection only takes two minutes to take effect.