BLOGS

    Thoughts and opinions from DB2 and technology blogs around the world featured by
    IDUG for our members.

    Willie Favero - Getting the most out of DB2 for z/OS

    Welcome to all things DB2 for z/OS. This is your one stop, your only stop, and your final stop to find out all you'll ever want to know about DB2 for z/OS. We'll be discussing how to upgrade to the latest DB2 version, have detailed "how it works" discussions, some performance tips, maintenance alerts, baby updates, with a few guest posts thrown in occasionally. In addition, you'll find all of the latest DB2 news and gossip, arrival notifications of the latest articles, books, seminars, and teleconferences, along with details on all of the major conferences. I'll occasionally be throwing in a post covering our z/OS operating system and our System z hardware. Plus, there will always be something entertaining posted every once in a while. This is the place you'll find just about anything you need to know to stay current with DB2 for z/OS, z/OS, or System z. This is also the place to get that little bit of lite reading each morning to start your day off on the right foot.

    Note: The content of this blog is the opinion and thoughts of the blogger and does not necessarily represent the opinions of IDUG.

     

     
    Please attend my DB2Night Show webinar this Friday (Apr 25)(Posted on Wednesday, April 23, 2014) Today?s post is a short announcement (reminder, plead) that Martin Hubel and Scott Hayes have been kind enough to invite me to speak at (another) the next DB2Night Show webinar scheduled for Friday, April 25 at 10:00 AM Central (8:00 AM Pacific, 11:0...
    WLM assisted DB2 buffer pool sizing: The story continues... Part 4(Posted on Monday, April 21, 2014) This is Part 4 or 4 of a multi-part post covering details on the APARs, other blog post, and the product manuals and Redbooks used as references
    WLM assisted DB2 buffer pool sizing: The story continues... Part 3(Posted on Monday, April 21, 2014) This is Part 3 of 4 of a multi-part post that goes into the ?DISPLAY BUFFERPOOL command and some implementation warnings. How do you verify what?s happening with AUTOSIZE and your buffer pools? Is AUTOSIZE enabled, disabled, and what are the thresholds set at. All that is easily found with DB2 DISPLAY BUFFERPOOL command. The following three display (all available in larger formats by just clicking on the image), those questions are answered.
    WLM assisted DB2 buffer pool sizing: The story continues... Part 2(Posted on Monday, April 21, 2014) This is Part 2 of 4 of a multi-part post covering how WLM buffer pool managements works.
    WLM assisted DB2 buffer pool sizing: The story continues... Part 1(Posted on Monday, April 21, 2014) This is Part 1 of 4 of a multi-part post covering the background and setup for Parts 2-4.
    How a DB2 getpage compares to an I/O(Posted on Sunday, April 20, 2014) They would seem like a simple concept; a getpage and an I/O. However, it would surprise you how many times the two terms get confused and misused. Now I?m not saying that folk don?t know the difference. I think in most cases they do. They still on oc...
    APAR Friday: Today it's about stats, WLM_REFRESH, and storage management(Posted on Friday, April 18, 2014) Last year, APAR PM88804 changed that behavior of REALSTORAGE_MANAGEMENT to solve a CPU usage issue. That behavior is being reversed and changed back to how it originally acted by APAR PM99575. PM99575: CHANGE THE DISCARDDATA LOGIC ...
    DB2 for z/OS is not affected by Heartbleed bug(Posted Friday, April 17, 2014) As if there could be any doubt, here?s the official word.... IBM DB2 for z/OS is not affected by the OpenSSL Heartbleed vulnerability (CVE-2014-0160) The flash states that ?DB2 for z/OS in all editions and all platforms is NOT vulnerable to the...
    Survey: Understanding the business applications running on System z (Mainframe)(Posted Friday, April 16, 2014) Help us (IBM) to better understand the business applications you are (or have been) running on System z, your IBM Mainframe, by completing a short 5 minute survey! This survey has been designed to help IBM better understand how your IBM System z inv...
    APAR Friday: LOB insert performance issue resolved(Posted Friday, April 10, 2014) This post is going to be pretty short this afternoon. I?ve been talking with a lot more people lately that are messing around with LOBs. So when I saw this APAR show up that takes care of of the reuse of free space, I thought ...

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