We have a SYSPLEX of four LPARs, each LPAR has a separate Master Catalog and a 
separate User Catalog defined to the Master Catalog.

Each Master Catalog has an alias called JUNK, which is defined to a User 
Catalog.

If I define a dataset on all four LPARs called JUNK.DATASET, I have four 
separate files, each residing in their own SMS Storage Group.

If I open the JUNK.DATASET with exclusive control on the first LPAR, I would 
think that I cannot open the JUNK.DATASET with exclusive control on the other 
LPARs.

Is this correct ? If so, is there a way to get around it ?

I am thinking this is a GRS issue but I do not have any proof.


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