Add replication or auto-summary values for a defined timeframe

You can use the Replication Backfill Manager to backfill the following types of historic data:

• Auto-summary: Beginning with AVEVA Historian 2017 (version 17.0.18000), Historian automatically creates a one-hour summary tag for every analog tag in the system. If you have historical data originally collected by Historian 2014 R2 or earlier, by default no auto-summary data will be calculated for the history blocks prior to upgrading to Historian 2017 or later. For example, if you ran Historian 2014 R2 or earlier from January 2010 until April 2020, then you migrated to Historian 2020, you’ll only have auto-summary data beginning in April 2020. If you want to create auto-summary data for the prior 10 years of history blocks, use the backfill utility.

• Replication: If you have historical data originally collected prior to configuring replication, by default no older data will be replicated. For example, if you collected data in Historian from January 2020 and then configured replication to another Historian in April 2021 and to AVEVA Insight in November 2022, you’ll only have replicated data in the other Historian beginning in April 2021 and in AVEVA Insight starting in November 2022. Use the backfill utility to replicate older data.

By default, the Replication Backfill Manager (aahBackfillUI.exe) is located in this folder:

C:\Program Files (x86)\Wonderware\Historian\x64

To generate replication or auto-summary data

1. Open the Replication Backfill Manager (aahBackfillUI.exe).

   

2. Select a Replication Server from the list. You can backfill data to any replication server defined in the Operations Control Management Console.

3. Choose the Start Time and End Time of the period for which you want data to be generated. The default is to generate data for the previous 6 months.

4. Specify the Time Increment (in hours) for how much time each summary tag will summarize. The default is 24 hours per summary tag.

5. Click Start to begin the process.

There is no need to keep the utility open once it has initiated the backfill process. But if you reopen the utility, you can see the replication progress.

The progress bar indicates the progress of the synchronization queue requests sent to for auto-summary processing. It does not indicate that all the data has been processed and summarized in the auto-summary blocks. The processing will complete silently outside of the utility interface.