One way to move data into a data space is through buffers in the program's address space. Another way avoids using address space virtual storage as an intermediate buffer area: through data-in-virtual services, a program can move data into a data space directly. This second way reduces the amount of I/O.
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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....
How does a program obtain a data space?
Data spaces and hiperspaces are created through the same system service: the DSPSERV macro. On...
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Programs can use data spaces and hiperspaces to: Obtain more virtual storage than a single...
How does a program manage the storage in a data space?
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