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Craziest/mischevious thing done with Mainframes
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anshuljain26

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Joined: 04 Apr 2010
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Location: Chandigarh

PostPosted: Fri Jul 15, 2011 1:21 am    Post subject:
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GuyC, really a good one to read.
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yuvrajdutta

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Joined: 13 Jul 2009
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Location: India

PostPosted: Sun Aug 07, 2011 4:17 pm    Post subject:
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M/F Spawner

Ran a REXX in foreground which in turn SUBMITS a JOB which executes the same REXX in BATCH and SO ON....

Soon the SPOOL is FULL. .. and no matter how many jobs you PURGE from the SPOOL more JOBS would come up by the time you are done with the PURGE..

and coz the SPOOL is full and if you're malicious enough to generate random CLASSes etc.. you got yourself a WINNER... Believe me if the ADMIN needs to login even he cannot unless the entire SPOOL limit has been reached and the only active JOB is terminated and of course no one else can login ;)

And the best goof-up.. managed to empty out my personal CICS MAP Library icon_sad.gif[/code]
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prino

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Joined: 07 Feb 2009
Posts: 1103
Location: Oostende, Belgium

PostPosted: Wed Sep 07, 2011 12:15 am    Post subject:
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In the very early 1990'ies I calculated "e" to 1,000,000 places, which was before the 1 April 1994 10,000,000 digit result of Robert Nemiroff & Jerry Bonnell. Company wasn't very happy when they found out - my job would run for only 10 minutes at a time, but if you run dozens in quick sucession something will show up.

I'm pretty sure it took a few weeks (if not longer) and used a huge amount of CPU time. Pity I never informed any newspapers, it would have given me another 15 minutes of fame. If you want to have a copy of the PL/I program, decipher my email address...
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Pandora-Box

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Joined: 07 Sep 2006
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Location: Andromeda Galaxy

PostPosted: Mon Dec 26, 2011 7:45 pm    Post subject:
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Easrly stage of my job I changed a small code with a SMALL bug which made nearly trigger atleast 1500 mails as I had truncated the money account by 2 digits icon_redface.gif and luckily none was complained of heart failure
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rajesh1183

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Joined: 07 Jan 2008
Posts: 98
Location: Hyderabad

PostPosted: Tue Dec 27, 2011 5:21 pm    Post subject: Reply to: Craziest or mischevious thing u have done with Mai
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we have a TEST & PROD environments. One busy day, I have logged into PROD environment and searching for my test datasets. As usual, I couldn't find them over there. Forgetting the thing that I have logged in PROD environment, I panicked, escalated to my manager and called the Storage admin for restoring my test datasets...

And to be more, I pinged my colleagues and asked them to check their test datasets. I have also shared the storage admin to be contacted in case of missing test datasets...

Later discovered my dumb mistake and couldn't stop laughing out of shy... icon_redface.gif
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krishnadevanur

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Joined: 02 Aug 2006
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PostPosted: Mon Dec 10, 2012 4:48 pm    Post subject:
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Accidentally printed the output of a payroll program to a production printer, since it was a monday, actual cheques were loaded for production run. Rest, as they say, is history...had to face wrath from everyone for my stupidity.
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Ed Goodman

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Joined: 08 Jun 2011
Posts: 556
Location: USA

PostPosted: Mon Dec 10, 2012 10:41 pm    Post subject:
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Wrote a horse racing simulator in RPF for ROSCOE. Little guys would run across the screen, random winner.
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Akatsukami

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Joined: 03 Oct 2009
Posts: 1786
Location: Bloomington, IL

PostPosted: Thu Feb 21, 2013 6:00 pm    Post subject:
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I reached the limit of my tolerance for sotfware engineers who ignore the errors in their bind jobs only to whine at me that their tests won't run properly. I spent some little while adding code to our testing tool so that a failed bind would send a message to the luser saying so, and then fail, not with a harmless little condition code, but with the abend of the Beast -- U0666 -- bringing things to a screeching halt.

I'll still have sotfware engineers whining at me, but now I can have some cruel fun telling them, "Your program is possessed by Satan; open a service ticket to the exorcist workgroup" icon_evil.gif
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TheMFKid

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Joined: 20 Nov 2013
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Location: India

PostPosted: Mon Dec 09, 2013 12:39 pm    Post subject:
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While training fresh grads, I used to do this in REXX. I created a REXX code LIKEME which takes NAME as arg. When I run 'TSO LIKEME myname' it would display - "Mainframe like you as you are too good". For any other name it would display "Mainframe do not like you".
People used to wonder why mainframe did not like their names.
This also helped to generate their interest on Rexx language.
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steve-myers

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Joined: 30 Nov 2013
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PostPosted: Wed Dec 11, 2013 6:50 am    Post subject:
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Late in my residence at a job I was doing something or other with HASP. This was before you could specify the volume serials of the SPOOL volumes. I had mounted my test SPOOL volume on the free drive in a 2314 bank; the plan was to remove the address "plug" for the production SPOOL volume and move it to my drive. In those days 2314 devices were sold in units of 8 drives, 7 were live; the 8th position was available for drive setup. Each drive had a movable device address "plug" that defined the hardware address for the drive. No "plug," the drive was offline and not accessible. One IPL - my testing was not going well and I had several IPLs - I forgot to switch the "plug" and I nuked the production SPOOL.

Relatively early in a new job I did a HASP mod that damaged some low storage. The problem was not caught in testing and the mod went into production.

Several months later some non IBM hardware was added that caused channel checks; the ERP (Error Recovery Procedure) crashed the system. The IBM CEs figured out the crash was caused by the low storage issue; they did a console setup to freeze the system when the storage was actually damaged, which led to my goof. I got razzed for that for years.

Many years later a senior operator accidentally forced a JES2 cold start rather than a warm start. Nothing intentionally malicious, just a very dumb goof. For some time he was called Shivers. Just before I quit that job Shivers was put in charge of the system programmers. Maybe management figured he could do less damage there!

Speaking of managers. We had a manager who was supposed to come in one Sunday to run interference with operations; for several months we had been having difficulties with operations not turning over the system for standalone tests. The guy didn't show one Sunday. This was in the 70s, before cell phones. We tried calling his home. Not there. Evidently he was at his girl friend's home. I heard later he got divorced.
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Gary McDowell

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Joined: 15 Oct 2012
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Location: USA

PostPosted: Wed Dec 11, 2013 10:59 pm    Post subject:
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When I first started COBOL coding I always had my 'GO TO" abend paragraph named "HELL".

I remember a guy who was learning CICS and for fun he wrote error-messages like "wrong key pressed you idiot". Well...He forgot to change some messages before program went to Production (eeeks).
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enrico-sorichetti

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Location: italy

PostPosted: Wed Dec 11, 2013 11:13 pm    Post subject: Reply to: Craziest/mischevious thing done with Mainframes
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when the CICS sources were still available,
and the CICS installation consisted in assembling everything

in one of the DFHSIT modules, at the WTOR telling ...
YAK YAK YAK, reply GO or cancel
the wrong answer path had as a comment "GIVE THE DUMMY ANOTHER TRY"
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