While ASID 1 (*MASTER*) clearly starts before JES, and not under the JES subsystem, in order for an address space to own JES related resources (such as SYSIN/SYSOUT datasets) it requires a JOBID in order for JES to identify the address space. To allow this, there is an subsystem call "REQUEST JOBID" function code 20 which address spaces running under the master scheduler subsystem can use to request that JES build control linkages between the JES subsystem and their address space. There is also a corresponding "RETURN JOBID" request, function code 21, that should be used if either 1 - the address terminates, or 2 - when JES is stopped. This is documented in the "MVS Using the Subsystem Interface" manual (SA22-7642-05 at the z/OS 1.8 level).
Wayne Driscoll Product Developer JME Software LLC NOTE: All opinions are strictly my own. -----Original Message----- From: IBM Mainframe Discussion List [mailto:[EMAIL PROTECTED] On Behalf Of Bruno Sugliani Sent: Thursday, August 02, 2007 8:47 AM To: [email protected] Subject: STC number for MASTER asid Hello listers Can one of you tell me in which book i can find an explanation of the syslog STCnumber creation . ASID 1 ( Master ) has an stc number in front of its entry ( DA ostc shows it ) and it is obviously related to SYSLOG ( i guess) . ( I hired a bright 25 years old programmer who agreed to join us to become a mainframe sysprog ) During my daily one hour session with him explaining how Z/OS works , i got this question : "but then why is there an stcnumber on master ?" Yes ! TIA Bruno Bruno(dot)Sugliani(at)Groupemornay(dot)asso(dot)fr ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [EMAIL PROTECTED] with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [EMAIL PROTECTED] with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html
