Tag Archives: zOS

SMPWKDIR

Posted on September 17, 2013 by Nofar

Just a quick post to say that I wish that IBM would automatically include an SMPWKDIR DD statement in all the GIMUNZIP jobs that they ship, even if they comment it out by default. You need it 90% of the … Continue reading →

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Sexy performance data on our new Dynamic ISPF logon procedures

Posted on September 15, 2013 by Nofar

We’ve started to move to Dynamic ISPF, currently only for select users in our Sandbox system. We’re trying the Apple approach on this one: give everyone juicy preview snippets of fast logon’s and beautiful ISPF menus so that everyone wants … Continue reading →

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An update on our HIPER (WTORs don’t get closed)

Posted on September 9, 2013 by Nofar

An update following this post: We have installed the PTF on our sandbox system, and so far so good. It’ll go into our test system likely this week. It requires an IPL to activate it, albeit a rolling IPL (one … Continue reading →

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Where did all these GETMAINs come from?

Posted on September 7, 2013 by Nofar

We’re dealing with an interesting performance problem in a certain CICS transaction. It’s one of those soft failures that creeps up to you unexpectedly, and is particularly difficult to pin-point. Our CICS has started to consume more CPU in a … Continue reading →

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HIPER: WTORs that Are Not Closed

Posted on September 3, 2013 by Nofar

Not to elaborate too much on this, but we recently encountered a new bug in the CONSOLE address space’s management of WTORs that caused an outage in our production system. The bug is flagged as HIPER (and rightly so), it … Continue reading →

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Another (IBM) Product Trying to Install to /usr/lpp

Posted on September 3, 2013 by Nofar

/usr/lpp is a path that resides on z/OS’s root or version root file system. Per IBM’s recommendation, and just common sense, the root file system is mounted read -only. It is an SMP/E managed file system that often gets updated … Continue reading →

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No more Bookmanager Books with z/OS 2.1

Posted on September 2, 2013 by Nofar

There will be no more Bookmanager in z/OS 2.1, and it’s the been fascinating to see people’s reaction to that news both at work and at SHARE in Boston. It seems to be a real age divide: there isn’t a … Continue reading →

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Health Check Focus: IBMUSS, USS_PARMLIB

Posted on August 29, 2013 by Nofar

This post will focus on one of IBM’s health checks for Unix System Services. For a more general introduction to IBM’s Health Checker check out this post. This is a low severity exception check, but it did flag something interesting … Continue reading →

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Why Bother Setting Up IBM’s Health Checker

Posted on August 28, 2013 by Nofar

If you haven’t activated IBM’s z/OS Health Checker, then I highly recommend it. It’s a no additional charge function that has been available since z/OS 1.7 (and rolled back to z/OS 1.4), and in z/OS 2.1 will automatically start up … Continue reading →

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