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Occasionally people want to know,
where is the batch data actually stored? Well,
the batch data is actually stored in a set of PI
Tags. They are Base Point Class Tags, and
the data is not accessible through standard
retrieval tools. Basically, there's one
storage point for all PICampaigns even though we have not
implemented Campaigns yet. We have one storage
point for all PIBatches, and
one storage point for all Transfer Records, again, not
implemented. And one storage point per
PIUnit for UnitBatches and SubBatches.
And you can actually see those tags
if you go into a Tag Search. You will
see a whole series of tags
if you just search for all your tags in your system
that have these GUID -- these Graphical
Use... -- Universal ID numbers, and you can see the
description of them: PIUnitBatch storage
point and PIBatch storage point.
We could scroll down a little further
and PICampaign storage
point, PI Transfer Record storage point. So,
these are all stored, actually, in the PI System in,
in this algorithm that
we have to store the data within these tags. And
you, you will not retrieve the data. There's nothing
to look at. And we ask you -- that
you make sure that nobody deletes this information. If somebody
were to delete one of the PIUnits
for the UnitBatches, all the, all the batch
data for that Unit would be gone.
Because we do store things as
tags, the BatchDatabase does not require any
special backup action
because all the configuration is stored in the Module Database .
That gets backed up with the daily backup. And, the BatchDatabase
is stored in the PI Archives as Tags. Both of them
are part of your daily backup routine, so
that's where the PI Tag data is --
PIBatch Data is stored.