IBM Systems Magazine, Mainframe - July/August 2014 - (Page 48)

TECH CORNER Ahead of an EMERGENCY A point-in-time tool, Runtime Diagnostics can find issues in a pinch T he phone rings. You answer with a cheery voice only to hear an angry one: "Something is wrong with the system. Why haven't you noticed and fixed it already?" Karla Arndt is an IBM senior software engineer and the team leader of Predictive Failure Analysis and Runtime Diagnostics. In a panic, you search for the cheat sheet and those yellow sticky notes that show a list of things that could be wrong and what to do, but where should you start? Runtime Diagnostics is the answer, and it's existed since z/OS* V1R12. Invoking Runtime Diagnostics Runtime Diagnostics, or the HZR address space, is designed to do what an experienced system operator would do when a problem is occurring on your system. It reduces the time needed to diagnose a problem and provides suggestions for next steps to help you resolve the issue quickly. Runtime Diagnostics does this without tracking data or using system resources until you invoke it, and even then it has minimal dependencies on system services and resources. Starting in z/OS V1R13, it is an address space that is simply waiting for work-started by the command s hzr,sub=mstr 48 // JULY/AUGUST 2014 ibmsystemsmag.com and invoked by using the modify command f hzr,analyze. In z/OS V1R12, it runs as a started task that is started each time you want to perform the analysis. Enabling Runtime Diagnostics takes little effort and the instructions for doing so can be found in the publication "z/OS Problem Management" (http://bit.ly/1j0oVv4). Using Runtime Diagnostics Runtime Diagnostics is designed to pinpoint issues when the system is experiencing problems but not so sick that the Runtime Diagnostics address space is no longer functional. It is a pointin-time diagnostics tool that detects problems contributing to current system issues with the goal of finding the problems in 60 seconds or less. Rather than collecting historical data, it uses the OPERLOG, system control blocks and APIs to detect symptoms of sickness at the time of invocation. Using it at the first sign of trouble increases the likelihood it will detect issues Runtime Diagnostics is a point-in-time diagnostics tool that detects problems contributing to current system issues with the goal of finding the problems in 60 seconds or less. http://bit.ly/1j0oVv4 http://www.ibmsystemsmag.com

Table of Contents for the Digital Edition of IBM Systems Magazine, Mainframe - July/August 2014

Table of Contents
Editor's Desk: Protecting information
IBM Perspective: Sunny outlook on the mainframe
Techbits: Watson: your personal shopper
Infographic: How the mainframe changed our world
Partner PoV: ISVs can help mainframe customers keep up with a rapidly evolving environment
Focus on Storage: IBM FlashSystem addresses storage and application performance issues
Currents: As data consumption expands, information protection policies must be put in place
Case Study: Credit Where Credit's Due: Isracard Group devises a novel way to verify its system integrity before disaster occurs
Cover Story: A Secure Fortress: The mainframe delivers the reliability, safety and cost-effectiveness your IT shop needs
Feature: Be Proactive in Risk Management: Protecting data is crucial as your business connects in ever-increasing ways along the access superhighway
Feature: Being Risk-Aware: New IBM and Ponemon study examines the economics of IT risk and reputation
Administrator: Active/Active Sites helps distribute workloads during outages
Tech Corner: A point-in-time tool, Runtime Diagnostics can find issues in a pinch
Solutions: Reflection 2014; CA Chorus; VFTP 3.0; Lifecycle Manager; STEPLIB-Rx; Ivory VisualConnect; Mainframe Abend Assist; Linux Enterprise Server Starter System for System z
Stop Run: Together, IBM executives Pat Toole Jr. and Pat Toole St. bring more than half a century of dedication to the company
Reference Point - Global Events, Education, Resources for Mainframe
2014 Mainframe Solutions Edition Product Index

IBM Systems Magazine, Mainframe - July/August 2014

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