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Exploring IMS disaster recovery solutions, Part 4: Coordinated IMS and DB2 solutions

Glenn Galler (gallerg@us.ibm.com), Certified IT IMS Specialist, IBM

Glenn Galler is a certified IT specialist for the IMS product in the IBM Advanced Technical Skills (ATS) group. He is a senior programmer specializing in disaster recovery. He joined the ATS group in March 2007. Galler is also the campus recruiting manager for the IBM Software Group for the University of Michigan, holding this position since 1998. He joined IBM in 1982 receiving his bachelor's degree in computer science from the University of Michigan. In 1989, he received a master's degree in computer engineering from the University of Santa Clara. Galler has worked in many areas of IMS, including testing, development, marketing and management. From 1992 to 1997, he held an international assignment in England as the European program manager for the IMS Quality Partnership Program (QPP).

Ron Bisceglia (RBisceglia@rocketsoftware.com), Lead Software Developer, Rocket Software

Ron Bisceglia is a lead software developer for Rocket Software, based in Houston. He has worked with IMS for more than 24 years, and for the past 20 years has been involved in the design, development, and support of a range of IMS tools. He has been involved in the development of database reorganization utilities, data propagation tools, database monitoring and analysis solutions, data replication, and backup and recovery products.

Summary: Every customer needs a disaster recovery (DR) plan. The strategy will differ from one customer to the next. For IMS®, there are two types of DR solutions: IMS-specific and storage mirroring. Here in Part 4, we explore the IMS-specific DR solutions. There are solutions that use only the IMS base product and solutions that use the IBM® IMS Tools products. For each DR solution, there will be a discussion of the key concepts related to that solution.

View more content in this series

Date: 03 May 2012
Level: Intermediate
PDF: A4 and Letter (2698 KB | 27 pages)Get Adobe® Reader®

Activity: 16486 views
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Before you start

About this series

Are you concerned with your ability to recover your business data successfully in an acceptable amount of time for your IMS databases? This "Exploring IMS Disaster Recovery Solutions" series covers the non-storage mirroring disaster recovery solutions for the IMS environment. The methods described in this series show how various backup and recovery resources can be combined to reduce time and data loss in the event of a disaster. Storage-based fast replication techniques (like FlashCopy technology) are also shown in this series with storage-aware IMS Tools that allow a coordinated and consistent recovery point between IMS and DB2 databases.

About this tutorial

This tutorial describes the IMS Disaster Recovery solutions that use the IMS Tools product, IMS Recovery Expert, and DB2® Tools product, DB2 Recovery Expert, to provide a consistent recovery point between IMS and DB2 production environments. The SLB is created using storage-based fast replication, such as FlashCopy technology, to ensure that IMS and DB2 are unavailable for only a couple of seconds or less.

The coordinated IMS and DB2 Disaster Recovery solutions discussed are:

IMS and DB2 Restart from a Combined SLB Only
IMS and DB2 Point-In-Time-Recovery (PITR) and Restart from Separate SLBs with Log Apply

For each coordinated disaster recovery (DR) solution, there is a section showing the one-time customization steps for IMS Recovery Expert and DB2 Recovery Expert.

If you haven't done so already, consider downloading the IMS Disaster Recovery demonstrations.

Objectives

After completing the tutorial, you should be able to: