Joined: 29 Oct 2010 Posts: 114 Location: Puerto Rico
Your non-RLS vsam file are read-only because your site has them defined that way. Your non-RLS vsam file could be share with multiple region thru MRO or APPC. If you do not have a FOR and you are not using RLS=yes then your files are local to the AOR that's using it.
We have done some testing now..and here is the result.
We don't need to define Read-Only files with RLS=YES. they can be defined as regualr files (RLS=NO). Only the files which are updatable must be defined with RLS=YES option and appropriate LOG parameter.