Hi Kuber,
I am adding some info to educate what this error means and also clarify when plugins are required.
OCUM/DFM needs plugins only if configuration management feature is used. Using this you can pull/push options on the controller or a groups of controller/vFilers.
The error you are getting is related to the reslimits.
For Each platform model and ontap version we have a table with what is the maximum dedupe limit permitted on the controller.
If you are using a ONTAP version or model for which the dfpm reslimit get does not return any thing you will hit this error.
This error will also been if simulators are used as they have the model as SIMBOX and there is no reslimit entry for such a model.
You will have to run these two commands.
dfpm reslimit create <ontap-version> <product-model>
dfpm reslimit create 8.1.2 FAS3220
Created new resource limit (274)
If all the aggrs in this controllers are 64bit aggr use the below cli.
dfpm reslimit set 274 maxDedupeSizeInGB=55193.6
If they are 32 bit aggrs
dfpm reslimit set 274 maxDedupeSizeInGB=16384
Regards
adai