Preface JES2 (Job Entry System 2) is the spooling package distributed with MVS 3.8J to queue manage (schedule) job in-take, route and/or hold printer and punch output. JES2 is a principal component of MVS. The following manuals, at minimum, should be referenced whether following up on MVS / JES2 functionality, modifying JES2 or Hercules configuration: As a software developer or…
Category: Hercules
BrowserLog in MVS38J
Preface Using the Hercules emulator to host MVS 3.8J requires real-time interaction with each system including host OS (i.e. Windows, Linux, etc.). A typical interactive setup may include: This post is a short communication for awareness purposes which outlines an alternative console log using a web browser immediately available via Hercules in tk4- and tk5 base distributions. Hercules Console Per…
Files(n) in MVS38J
Preface Using the Hercules hardware emulator to run MVS 3.8J declares various files on your PC OS (e.g. Windows, Linux) file system such as MVS DASD devices, communication devices, MVS printer output, MVS logs, and punched output. A Hercules configuration file may contain the following unit-record devices as depicted in the below sample snippet: . . # Card Readers 000C…
Stubborn JES2 in MVS38J
My Experience… Over the years of using the public domain version of MVS 3.8J (e.g. tk3 or tk4-8), I encountered a halt state during the overall MVS shutdown process. The purpose of this post is to share my resolutions when JES2 encounters a ‘holding’ state when attempting to normally terminate (bring down) MVS 3.8J. Before continuing, it is suggested obtaining…
ISPFPAP-n-CLGLST
Overview The CLGLST (ISPF v2.2 LOG / LIST alternative add-on) requires a task to execute after an ISPF user session is terminated (e.g. =X from ISPF) to process LOG and LIST datasets based on user set defaults. With the introduction of ISPFPAP (ISPF Autoexec-type alternative add-on), the application offers consolidated launch (trigger) points for pre-ISPF and post-ISPF processing. The CLGLST…
ISPFPAP in MVS38J
Overview ISPFPAP – Pre-ISPF and Post-ISPF Processing on MVS 3.8J TSO / ISPF / Hercules(current version 0.9.01 2024-07-01) When ISPF v2.2 (ISPF-like product from Wally Mclaughlin) is installed on MVS 3.8J, the command ISPF is used to start ISPF under TSO as listed in ISPF v2.2 installation documentation. ISPF v2.2 can be started using various command syntax as referenced in…
ISPF Command Table in MVS 3.8J
In release ISPF v2.1 (ISPF-like product from Wally Mclaughlin), the command table utility was introduced as option 3.9 (Create/change an application command table). A command table is an actual ISPF table stored in the ISPTTLIB library. Depending on your installation standards, the ISPTABL DD most likely points to a user id dataset and may be one of several concatenated datasets…
Submitting JCL to MVS 3.8J
Preface (updated 2020-01-22) JCL (Job Control Language) decks are used to submit JOBs via a reader device or an online edit session for batch processing on the public domain OS, MVS 3.8J (MVS will be used to mean MVS 3.8J in this post). As a MVS 3.8J hobbyist / enthusiast, the previous statement is elementary and unequivocal. The purpose of…