z/OS JES3 Initialization and Tuning Guide
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Defining PSF FSSs and FSAs for Printers

z/OS JES3 Initialization and Tuning Guide
SA32-1003-00

To use a PSF printer under JES, you must first code JES initialization statements to define PSF FSSs and FSAs for PSF printers. You use the FSSDEF initialization statement to define the FSS, and you use the DEVICE initialization statement to define each printer FSA. The following number of FSSs and FSAs are supported:
  • A maximum of 2000 FSSs
  • A maximum of 128 FSAs per FSS
Note: The actual number of FSAs per FSS depends on several factors, including:
  • The virtual region size below the 16-megabyte line
  • The number and the size of form definitions and page definitions
  • The number of buffers specified for channel-attached printers
  • The block sizes of the font, page segment, overlay, form definition, and page definition libraries
See Determining the Maximum Number of Printers for an Output Writer FSS for more detail.
Parent topic: Running a Printer Under an Output Writer Functional Subsystem

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