gtpd1m0oDatabase Reference

File Pool Support

Random file pool storage support (referred to as file pool support in the remainder of this chapter) enables a program to obtain temporary file storage space in much the same way as temporary main storage is obtained. File addresses for this temporary file storage are obtained by application programs using a macro. These programs can then store data at the disk locations for whatever period of time is appropriate. Another application macro indicates that a file pool address can no longer be considered in use and is available again.

File pool storage supports devices that use file address reference format (FARF) addressing (for example, the 3380 DASD).

This chapter is an overview of file pool support with descriptions of the following: