VSAM Master Catalogs

How many active VSAM master catalogs can exist in an operational MVS system

Questions by psmadhusudhan

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arjungutha

  • Sep 12th, 2010
 

For a monoplex system, there is only one master catalog.

If your installation has multiple, interconnected systems, the master catalogs of each system can be connected to the master catalogs of each of the other systems. In other words, a master catalog on one system is a user catalog on the other systems.

Another recent improvement is, you can share the master catalog and IPL volume among several MVS images.

If you have any other questions, please let me know.

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