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Overview of the Tiebreaker software

It is helpful to understand what the Lenovo MetroCluster Tiebreaker software is and how it distinguishes between types of failures so that you can monitor your MetroCluster configurations efficiently. You use the Tiebreaker CLI to manage settings and monitor the status and operations of MetroCluster configurations.

  • Detecting failures with MetroCluster Tiebreaker software
    The Tiebreaker software resides on a Linux host. You need the Tiebreaker software only if you want to monitor two clusters and the connectivity status between them from a third site. Doing so enables each partner in a cluster to distinguish between an ISL failure, when inter-site links are down, from a site failure.
  • How the Tiebreaker software detects site failures
    The Lenovo MetroCluster Tiebreaker software checks the reachability of the nodes in a MetroCluster configuration and the cluster to determine whether a site failure has occurred. The Tiebreaker software also triggers an alert under certain conditions.
  • How the Tiebreaker software detects intersite connectivity failures
    The MetroCluster Tiebreaker software alerts you if all connectivity between the sites is lost.
  • How different disaster types affect Tiebreaker software detection time
    For better disaster recovery planning, the MetroCluster Tiebreaker software takes some time in detecting a disaster. This time spent is the disaster detection time. The MetroCluster Tiebreaker software detects the site disaster within 30 seconds from the time of occurrence of the disaster and triggers the disaster recovery operation to notify you about the disaster.
  • About the Tiebreaker CLI and man pages
    The Tiebreaker CLI provides commands that enable you to remotely configure the Tiebreaker software and monitor the MetroCluster configurations.