Configuring High Availability

Applies To: Operations Manager 2007 R2, Operations Manager 2007 SP1

You can use the <EMS> Connector Configuration dialog box to configure High Availability Operations Manager 2007 R2 Connectors or to monitor their availability.

For High Availability configuration, you must install Connectors on multiple servers. Each High Availability Connector is installed with the High Availability feature enabled on the Configure Connector Service Login and High Availability page of the Connector installation. All High Availability Connector installations must use the same SQL database and must be installed within the environment of one Connector management group.

Using High Availability

You can use the High Availability tab of the <EMS> Connector Configuration dialog box to configure Connector servers for High Availability communications for the Connector service.

The High Availability tab has the following sections and elements.

High Availability Configuration

• Polling interval (seconds)
  Use this box to enter a value in seconds. This value is the interval for polling for the availability status of the servers configured with High Availability. Default=30

• Tolerance
  Use this box to enter a value for the number of High Availability polling intervals during which a High Availability server can fail to respond before it is designated offline. For example, default settings designate a High Availability server as offline if there is no response to the polling signal in a 90-second period. Default=3

High Availability server communication order

• Host name (Server)
  First column in the server list table; displays the server name. All servers in the Operations Manager 2007 R2 management group that have Connectors installed for the given remote system appear in the list.

• State
  Second column in the server list table; displays the availability state as of last polling. Possible states are:

  • Active – Connector currently in use.

  • Passive – Connector available but not currently in use.

  • Offline – Connector currently unavailable.

    Note

    If all the high availability Connectors are turned off, the Active Connector continues to appear in the dialog box until Operations Manager 2007 R2 refreshes the list. The amount of time necessary for the refresh is determined by the values in the Polling interval (seconds) and Tolerance fields. For example, an interval of 30 seconds and a tolerance of 3 give a refresh time of 90 seconds.

• Last heartbeat
  Third column in the Server list table; displays the timestamp of the last successful polling.

• Move Up
  When there are multiple servers listed in the server list table, click this button to move the selected server up one space.

• Move Down
  When there are multiple servers listed in the server list table, click this button to move the selected server down one space.

• Refresh List
  Click this button to refresh all information in the server list table to the latest polling.