Virtual storage access method (VSAM) Question:
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Describe SHAREOPTIONS parameter (SHR) in Define Cluster command?

Answer:

It define the cross-region and cross-system sharing capabilities of the dataset. Syntax is SHR (Crvalue, CSvalue) value 1 means multiple read OR single write (read integrity ) 2 means multiple read AND single write ( Write integrity ) 3 means Multiple read AND multiple write 4 is same as 3, which refreshes the buffer with every random access defualt is SHR(1 3).

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