Setting up Directory failover and load balancing - Security Center 5.9

Security Center Administrator Guide 5.9

Applies to
Security Center 5.9
Last updated
Content type
Guides > Administrator guides
Security Center

To protect your information in case the main server fails, you can set up Directory failover and load balancing by assigning expansion servers as Directory servers.

What you should know

  • You can convert up to five expansion servers as Directory servers to be used for load balancing and failover. The order of appearance of the servers in the list corresponds to the order they are picked if a failover occurs. If the main server fails, the role switches to the next server in the list, and that server becomes the main server.
    IMPORTANT: Do not try to add a server to the Directory failover list by activating the Directory on that expansion server with Server Admin. This action disconnects the server from your current system and transforms it into the main server of a new system.
  • If you want to exclude a Directory server from load balancing because either the server or the connection between the client and the server is slow, you can enable the Disaster recovery option. This removes the server from participating in load balancing, but the server will still be available to take over as the main server in the event of a Directory failover.


  1. From the Config Tool home page, open the System task, and click the Roles view.
  2. Select the Directory Manager () role, and click the Directory servers tab.
  3. Click Add an item ().
  4. In the dialog box that appears, select the server you want to add, its connection port (default=5500), and click Add.
    The server is added to the failover list.
  5. Add more Directory servers if necessary.
  6. Update your license to include the servers you’ve just promoted to Directory servers.
  7. Click Apply.


The expansion servers are converted into Directory servers and the updated license is applied to all Directory servers in the list. Client applications and roles on expansion servers can connect to Security Center using any of the Directory servers.