Administration › Options Manager › Ver Ctl Options

Ver Ctl Options

The ver_ctl option controls the actions that are taken by the Version Control Manager when a version discrepancy is detected. The Version Control Manager detects discrepancies by comparing version files across all CA SDM servers (client and servers). Depending upon the CA SDM configuration, the following client and servers are used:

• Conventional:
  • Client: Secondary server
  • Server: Primary server
• Advanced availability:
  • Client: Application and Standby servers
  • Server: Background server

Only components that are listed in the version files are controlled. When you restart the servers and if a discrepancy is detected, the client connects to the server to send a list of its controlled components. The server compares the list to its own master list. The affected components on the client are upgraded or terminated, depending on the ver_ctl option.

ver_ctl

Installing this option activates the Version Control Manager. Valid option values are:

• Fail -- A version discrepancy terminates the secondary server's connection to the primary server. The secondary server is prevented from connecting to the primary server until it is manually updated.
• Notify -- Default value. On Windows, a version discrepancy results in a message window asking if you want the secondary server to continue or quit. On UNIX, a version discrepancy is logged, but the secondary server always completes initialization.
• Upgrade -- When a version discrepancy is detected, an upgrade of the affected components is attempted on the secondary server. If the upgrade is successful, the secondary server connection continues; otherwise, the secondary server connection terminates.
• Disable -- Version discrepancies are ignored. All secondary servers are allowed to connect to the primary server.

Important! Installing or uninstalling an option requires you to restart the CA SDM servers. For advanced availability configuration, not all options require you to restart all the servers. Ensure that you read the Server Restart List before restarting any server.