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I Cooked a SYSRES!
But before we all start panicking, let me preface this by saying it was on my employers z/D&T (Development and Test) environment – not a client system. No mainframes were hurt (much) in the making of this blog post. So what happened? TLDR: It turns out the SYS1.NUCLEUS dataset can’t have extents allocated, it must…
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Adding Users to RACF
RACF users can be made with the ADDUSER command. Because creating a user is a multiple step process with a lot of different RACF commands involved, creating a user via batch is common. RACF commands can be run in batch with the IKJEFT01 program, which allows you to execute TSO commands in batch. There are…
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Jobcard Template Insert Macro
/* rexx */“isredit macro”“isredit (cur) = cursor” lineno = curline = “//JOBCARD JOB ,’Name’,NOTIFY=&SYSUID.,”“isredit line_after “lineno” = (line)”line = “// MSGCLASS=A,MSGLEVEL (1,1),CLASS=A”“isredit line_after “lineno+1″ = (line)”line = “//““isredit line_after “lineno+2″ = (line)” Macro: Insert job card templateAbout: An isredit macro to insert a job card into a member open in ispf edit.Usage: Allocate the macro…
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What’s in a Job Card?
JCL is a staple language for Systems Programmers, and arguably the most important part of any JCL is the job card – we can’t run a JCL without one. The reason a lot of people call it a ‘Job card’ (you might also hear other terms like Job statement) is because MVS programming used to…
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IBM Sample Edit Macros
IBM provides some sample ISPF edit macros in the SYS1.SISPSAMP library. These are useful as is or as a basis for learning to write your own edit macros. Today we will discuss a few of them. First of all, to use the edit macros we need to ensure that SISPSAMP is allocated. This can be…
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TSO Logon Procedures and RACF
SYS1.UADS is the default dataset listing users that are allowed to use TSO/E [1]. Most sites that have RACF or other security products installed use those products to maintain their TSO/E logon information [2]. For a first time installation of RACF, IBM provides a command called RACONVRT to move users from SYS1.UADS to the RACF…
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Purging the JES spool in SDSF
Many mainframe beginners will be familiar with how to manually purge job outputs from the JES spool one by one – that is, accessing the job status log via SDSF;ST and placing a P against the job entry to be purged. But there are ways we can purge multiple jobs without having to manually enter…
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