2 Replies Latest reply on Oct 26, 2018 11:49 AM by André Åsheim

    Historical Data Compression and Formatting


      Hi All,

      I was wondering if anyone could share some information about how PI Historian processes and stores historical data? I'm currently working with a data set that has at least 15 years of historical data. I need to collect and process this entire history and was wondering what the best way to do this was?

      • How does the PI system compress this data?
      • What is the formatting of compressed data?
      • Is there a way to decompress this data? * (apologies if this is a silly question)


      Any help would be greatly appreciated.