4. How to configure autosave for IOCs#
Date: 2023-11-30
Status#
Accepted
Context#
There is a choice of supplying the list of PVs to autosave by:
adding info tags to the Database Templates
supplying a raw req file with list of PVs to autosave
Decision#
We will go with req files for the following reasons:
adding info tags would require upstream changes to most support modules
default req files are already supplied in many support modules
req files are in common use and many facilities may already have their own req files for support modules.
We expect to autogenerate the list of PVs to autosave from the IOC’s. We could therefore generate a Database override file which adds info tags. But it is simpler to just generate a req file.
The mechanism for using req files is that defaults will come from the support module or from the generic IOC if the support module does not supply a req file.
Then override files can exist at the beamline level and / or at the IOC instance level. These will simply take the form of a req file with the same name as the one it is overriding.
Consequences#
Everything is nice and simple.