Learn about buffering services

The AVEVA™ PI System™ offers two services to implement buffering at interfaces. Only one of them, PI Buffer Subsystem, supports buffering for clients.

• PI Buffer Subsystem (pibufss)

  PI Buffer Subsystem is the best option for most environments, particularly if you use version 4.3 or later. Starting with version 4.3, PI Buffer Subsystem supports buffering to multiple servers and collectives.

• API Buffer Server (bufserv)

  API Buffer Server is needed only by those with unusual configurations, for example, those connecting to older versions of Data Archive.

  Note: API Buffer Server will no longer be distributed and will be removed on upgrade of PI Buffer Subsystem or PI AF Client and PI SDK.