3 Replies Latest reply: Sep 13, 2011 1:03 AM by Pramod Kumar RSS

    Migration from PEM to BEM

    Pramod Kumar

      Hi All,

       

      We are having a client who is planning to migrate from PEM to BEM.

       

      Are there any things that we would need to keep in mind while doing this?

       

      Any pointers will be helpful.

       

      Regards

      Pramod

        • 1. Migration from PEM to BEM
          Jonathan Coop

          Biggest effort is probably going to be in the event enrichment that may be carried out in PEM/filter paths. Anything custom is going to take time to convert.

           

          1. PEM has Mainframe stuff, like screen emulators that BEM doesn't. BEM cannot screen scrape (as I understand it).

           

          2. BEM events will eventually be deleted after being closed, you need to put something in place to keep them if this is a requirement (typically to external database).

           

          3. You should consider having at least two cells on a busy system (even if on the same machine), one to handle enrichment, the other for display.

           

          4. MRL is a somewhat limited language, so not everything you can do in REX/Perl can necessarily be done without an external call.

           

          Regards

           

           

          Jon

          • 2. Migration from PEM to BEM
            Ferry Bolhar

            Ad 2). in BEM, closed events are deleted after the time interval specified in the cell's EventDBKeepClosed parameter (defaults to 2592000 secons = 30 days). Using the cells propagation mechanism and a product named "Impact Database Gateway", one can transfer all or particular events to an external database for further processing.

             

            In PEM, closed events are transfered to the file-based PEM database. Its retention period determines how long events are stored therein (usually 14 days). There is no OOB Database Gateway mechanism here.

            • 3. Migration from PEM to BEM
              Pramod Kumar

              Thanks Jon & ma14pg6.

               

              Looks like we will have to relook at the effort estimation and timelines for this activity.

               

              Regards

              Pramod