C13-服务器到服务器采集器

null第十三章第十三章Proficy Historian 服务器到服务器采集器Main描述服务器到服务器采集器功能 配置服务器到服务器标签什么是服务器到服务器采集器?什么是服务器到服务器采集器?A. 什么是服务器到服务器采集器? 一个 Proficy Historian 采集器可以： 从其他Proficy Historian 服务器上获取信息 从它自己的资源服务器上获得Proficy Historian标签 包括了所有运算采集器的功能 Proficy Historian 标签 (包括其他服务器到服务器和运算标签) 通过Visual Basic Scripting (VBS)获得一些数据资源, 比如: 文件 I/O, ActiveX Data Objects (ADO) 在目标服务器上把信息保存进一个新标签 The Server-to-Server collector needs an Proficy Historian server to get its data the Source server is where the collector gets its data the Destination server is where the data is archived It may be installed remotely from both the source and destination servers if so a TCP IP connection to the server is require for the collector to: receive data from the source server send data to the destination server The Server-to-Server Collector performs Recovery Logic when it loses connection to the server to reconstruct the calculations that have been missed Max Recovery Time is how far into the past the collector reaches to do this can be configured in the Administrator see Figure 13-3 服务器到服务器采集器间的数据流动服务器到服务器采集器间的数据流动Configuration in the AdministratorConfiguration in the AdministratorB. Configuration in the Administrator The Source Server is the server from which the data is collected configuring this item changes the source of the data Message Replication refers to the messages that are generated by the source server Setting Calculation timeout defines the maximum amount of time that the collector will allow a calculation to run if a calculation times out no data is returned set on the Configuration tab of the collector see Figure 13-3 Maximum Recovery Time the maximum time before now for the Recovery Logic to run is configured in the collector configuration. see Figure 13-3 the default is 4 hours Add Prefix To Messages add a prefix to uniquely identify messages Understanding RecoveryUnderstanding RecoveryC. Understanding Recovery When a collector loses connection to its server and then reconnects it will attempt to recover the calculations that it was supposed to complete during the disconnect Calculations will be recovered from oldest to newest in time order The Recovery logic goes back to the last archived calculation or the Max Recovery Time, whichever is least, and uses that as a starting point When Recovery mode executes: when the Server-to-Server Collector starts-up when the collector is resumed after a pause when there is an on-the-fly change (similar to a pause and resume) only tags in the new tag configuration are synchronized after the connection to the source archiver is restoredLab Exercise 13Lab Exercise 13Adding Tags to the Destination Server MainLearning ObjectivesLearning ObjectivesAdd tags to the Destination server Create a tag to do a Time based roll up Estimated time to complete this exercise: 20 MinutesMainLab Exercise 13Lab Exercise 13A. Add Tags to the Destination Server B. Add a tag to do a time based roll up . C. Change the collection parameters of the tag. D. Add a calculation to the tag to do a 30 Minute Average. E. Edit and test the calculation MainSummary QuestionsSummary QuestionsWhat are the 2 servers called in the Server-To-Server pair? Where are tags added for the Server-To-Server collector? Give 3 examples of tags that can created with for the Server-To-Server collector? Describe a case where it might be useful to use Manual Recalculation? When are values collected in Server-To-Server unsolicited tags? Main