Buffering configuration

Use PI Interface Configuration Utility (PI ICU) to configure interface buffering.

The Tools > Buffering option helps you configure buffering. Depending on your current configuration, this option does one of the following:

• If this computer is configured to buffer data using PI Buffer Subsystem 4.3 or later, the Buffering Manager window opens and shows a buffering dashboard. The dashboard shows information about the status of buffering on this computer.

• If this computer is not currently configured to buffer data, and PI Buffer Subsystem 4.3 or later is installed, you are prompted to configure PI Buffer Subsystem. If you select Yes, the Buffering Manager window opens and shows the installation wizard, which helps you configure PI Buffer Subsystem.

• If this computer is configured to buffer data using API Buffer Server (Bufserv), and PI Buffer Subsystem 4.3 or later is installed, you are prompted to convert to and configure PI Buffer Subsystem. If you select Yes at both prompts, the Buffering Manager window opens and shows the upgrade wizard, which helps you upgrade from API Buffer Server to PI Buffer Subsystem.

• If PI Buffer Subsystem 4.3 is not yet installed, the Buffering window opens for API Buffering or the earlier version of PI Buffer Subsystem.

For PI Buffer Subsystem 4.3, when configuring an interface to buffer data to a Data Archive server which has not been added to the buffered server list you must enable buffering. Select the Enable button in the Buffering Status box on the interface General page. To verify that the buffering status is On, exit PI ICU, then restart and select the interface.

You can use Buffering Manager to configure, monitor, and troubleshoot buffering using PI Buffer Subsystem. PI Buffer Subsystem is recommended for applications connecting to Data Archive 3.4.375 or later. Older versions of PI Data Archive require API Buffer Server, as do some sites with custom solutions. See Buffering Manager help (PIPC/HELP/BufferManager.chm) for more information.