How does a program obtain a data space?

Data spaces and hiperspaces are created through the same system service: the DSPSERV macro. On this macro, you request either a data space (TYPE=BASIC) or a hiperspace (TYPE=HIPERSPACE). You also specify some characteristics of the space, such as its size and its name.

The DSPSERV macro service gives you contiguous 31-bit addressable virtual storage of the size you specify and initializes the storage to binary zeros.

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Who owns a data space?

Although programs create data spaces, they do not own them. When a program creates the space, the...

Can an installation limit the use of data spaces?

The use of data spaces consumes system resources such as expanded and auxiliary storage....

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One way to move data into a data space  is through buffers in the program's address space....

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