MVS

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MVS

System IPL Sequence

6th December 2010 Rui Miguel Feio
The initialization process begins when the System Programmer or Operator selects the LOAD function at the Hardware Management Console (HMC). To successfully IPL z/OS, the system programmer needs to supply the following information: –    The device address of the IPL volume –    The LOADxx member that contains pointers to system […]
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Glossary

What is a Catalog?

1st December 2010 Rui Miguel Feio
A catalog describes data set attributes and indicates the volumes on which a data set is located. When a data set is cataloged, it can be referred to by name without the user needing to specify where the data set is stored. Data sets can be cataloged, uncataloged, or recataloged. […]
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Glossary

What is batch processing?

22nd November 2010 Rui Miguel Feio
Batch processing is a method of running a program or a series of programs in which one or more records (a batch) are processed with little or no action from the user or operator. A program that reads a large file and generates a report, for example, is considered to […]
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MVS

IPL Types

16th November 2010 Rui Miguel Feio
You may use one of three types of initialization: Cold start, quick start, or warm start. The primary difference between the three types is whether or not certain storage is treated. Cold start   An IPL that loads (or reloads) the Pageable Link Pack Area (PLPA) and clears the Virtual […]