OpenHistorian: How to import Archive file (d2i)?

GPA Products openHistorian
1

Hi,

I need to import openHistorian archive file(d2i), which was created at other openHistorian instance.

Please see more details:

We have 2 openHistorian instance A and B and each instance is independently connected with PMU.

• Instance A is connected with PMU
• Instance B is connected with Separate PMU
• Instance A is generated archive files (d2i)

We need to import d2i file using openHistorian instance B, which was generated by openHistorian instance A.

Is it possible?

My understanding is instance A will have its own device id, signal id for that PMU, which is connected in that instance and d2i files will have same information, at the same time instance B will not have that device details, so import is not possible. However, please conform from your end. If its possible to import, please provide the steps and configuration details.

Thanks & Regards
Logu

2

Hi Stephen,

Any response please?

3

The openHistorian 2.0 depends on the database configuration to map metadata to archived data when reading and writing. Without some way to synchronize the Measurement.PointID field from Instance A to Instance B, it will not be possible to integrate Instance A’s archive files with Instance B’s. Therefore, the requirements to make this work are:

  1. All points IDs must be unique between Instance A and Instance B.
  2. A process to forward metadata from Instance A to Instance B, maintaining value of the PointID field.
  3. A process to migrate d2/d2i archive files from Instance A to Instance B.

It sounds like you have a process in mind for #3 so you’ll need to solve the other two requirements first. It would be a lot of work for me to design a solution and provide a set of steps. I’m sorry to say, I can’t provide that level of support on these discussion boards.