ACF2 prefix ownership dataset report acfrptdsv prefix(********)
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ACF2 prefix ownership dataset report acfrptdsv prefix(********)

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Article ID: 249018

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Updated On:

Products

ACF2 - z/OS

Issue/Introduction

If a user does not have explicit access to a dataset but gets access because of NON-CNCL a record is written to smf
  Does the same thing apply to access by having a PREFIX(********).

Environment

Release : 16.0

Component : ACF2 for z/OS

Resolution

Yes, the RMRC field of ACFRPTDS will contain OWNED if the user owned the dataset - but there is no reference to the value of prefix in the report.
You would need to check that the HLQ of the dataset being accessed was not the same as the logonid
and then confirm that prefix(********) was specified by looking at the logonid record. 

OWNED means that access was allowed because the user was deemed to be the owner of the dataset - according to the prefix in the logonid record.