Need to use the history collectors for detector.

Document ID : KB000092464
Last Modified Date : 23/04/2018
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Introduction:
how would I pull the old collectors for V18 after I upgrade to V19
Question:
I am upgrading the CA to V19 in our environment. I have a naming convention while creating the data collectors specific to a release. If I do that how would I pull the old collectors for V18 after I upgrade to V19.
Environment:
z/os DB2
Answer:
The easiest way to do this is to use the R18 control file in your R19 Detector.
This will let you see and access your R18 Datastores in your R19 system.
Then you can create your R19 named datastores and they will be useable also.

This process is documented in the install information.