Hello everyone! SHARE at San Jose is approaching fast. It will be held at San Jose,CA Convention Center from March 5th - 10th. If you haven't made plans yet then you need to act now! Registration is still open. I will be presenting 2 sessions: SHARE San Jose 2017 Topic: ABCs of z Systems Software … Continue reading My sessions at SHARE San Jose
How do you say hi or hello or howdy to mainframe? You know how to talk to your Personal Computer (PC). You start your PC, login with user name and password on login screen and you enter the PC. Once you logged on to PC, you will interact with PC various ways. You use your … Continue reading How do you talk to Mainframe?
This post is part of mainframe diagnosis series. Today we will discuss about diagnostic Traces. This part 3 of the series. I am in the process of preparing for an IPCS presentation and I am refreshing some of those concepts. Thought to share this along the way. Trace prints a trail of entries about the … Continue reading Mainframe Problem Diagnosis Part 3
This post is part of mainframe diagnosis series. Today we will discuss about diagnostic dumps. This post is part 2 of the series. Check part 1 post here Dumps provide very useful diagnostic data related to the problem. The problem could be in operating system, subsystem (example DB2,CICS etc), hardware or application. A problem may … Continue reading Mainframe Problem Diagnosis Part 2
In this series, we will discuss various topics related to mainframe z/OS problem diagnosis. In this article part1, I will give an overview fundamentals and in later articles we will discuss in depth. To diagnose a problem, mainframe provides you with logs, dumps, traces and messages. Logs Console log Messages issued at console intended for operator. SYSLOG … Continue reading Mainframe Problem Diagnosis Part 1
Today we dwell into one of the exciting topic in the mainframe world its "Capping". What is capping? Capping controls the amount of CPU consumption by an IBM z System logical partition LPAR. In this context, CPU here is general purpose CPU and not a specialty processors like z Integrated Information Processor (zIIP), Integrated Facility … Continue reading Capping in z systems – Part 1
Have you heard of Master the Mainframe contest? Its a contest that encourages students to develop mainframe skills. Its part of IBM z System Academic which provides mainframes training and resources to students at schools worldwide. These contests are hosted around the world. If you don't have a contest near your region, you can participate … Continue reading Master the Mainframe
I was asked this question last week while I was riding with Scoop ride sharing service.[BTW scoop is great service. If you want to try it out then use my referral code HEMANTH9AF. We both get $20 credit] We introduced each other and conversation goes like this: Driver: what technology you work on? Me: Mainframes. Driver: … Continue reading What Operating systems Mainframes run?
I get this question asked several times. What kind of jobs does IBM mainframes offer? For starters, mainframe computers are large, multi-processor computing devices able to perform thousands of tasks every second. Mainframes that are now the size of your refrigerator run the most critical work of our top industries today. This includes large financial … Continue reading Mainframe Job Types
As of Sep 30 2016, z/OS V1.13 support ends. What this means is, if you ran into issues using this release you will not get help from IBM. Your option is to move to latest release of z/OS. There are 2 types of support life cycles policies. 3+2 support policy: This is called standard support. … Continue reading z/OS software support lifecycle policy