Chip, I looked at the manual z/OS MVS Using the Subsystem Interface.
This chapter contains detailed information about the directed function codes that your program can request. IBM subsystems provide these function codes.* Table 1 lists each supported SSI function code, its function, the subsystems that support the function, and the type of subsystem request (directed or broadcast). (Sorry for the bad formatting for the following table) Table 1. SSI function codes your program can request Function code Requested function Subsystem* Type of request 1 Process SYSOUT data sets JES2, JES3 Directed 11 User destination validation/conversion JES2, JES3 Directed 15 Verify subsystem function Master Directed 20 Request job ID JES2, JES3 Directed 21 Return job ID JES2, JES3 Directed 54 Request subsystem version information JES2, JES3, Master Directed This chapter that lists codes you can use. The ones you are asking about are not in the list. That would lead me to think that you should not use them. Just a guess. If you are a vendor and have a partnership with IBM, I would check with them about it. However, if you are looking to interface with JES2 or JES3, perhaps one of the JES Exits can do what you want. If you could provide more detail, that would be helpful. What problem are you trying to solve? Lizette > -----Original Message----- > From: IBM Mainframe Discussion List [mailto:[email protected]] On > Behalf Of Chip Grantham > Sent: Sunday, January 22, 2017 7:33 AM > To: [email protected] > Subject: Subsystem function code 16, 17, 18, and 19 > > Good morning listers. > > I've been looking for documentation for writing a subsystem which will respond > to function code 16 thru 19; open close restart checkpoint. Can't seem to > find anything except some brief descriptions in CBTTAPE entries. Any clues > would be appreciated. > > Chip ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO IBM-MAIN
