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If everyone wants it, why is high availability becoming harder to achieve in today’s databases? It seems that more and more availability errors are caused by human error. That’s why IBM came up with HADR, an architecture for high availability and zero transaction loss, but in an environment that is very simple to set up (and, hopefully, less prone to human error). In this podcast discussion, Chris Eaton and Paul Zikopoulos talk about HADR, in which two servers are kept completely in sync at the database level, providing a redundant copy of data in case of any problems with one server. They share insights into the design process of HADR, and answer questions including what types of operation don’t get sent to HADR, how can you read of an HADR database, and more. And, for more detail about HADR, you can read the article, Availability with Clicks of a Button Using DB2’s HADR.

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Related Article

Availability with Clicks of a Button Using DB2’s HADR

by Paul C. Zikopoulos and Chris Eaton

The IBM® DB2® Universal Database™ for Linux®, UNIX®, and Windows® (DB2 UDB) Version 8.2 release became available in September 2004. This release is packed with all sorts of features, but the most talked-about feature is the new high-availability disaster recovery (HADR) technology. This article talks about HADR and some of the benefits that it can deliver to enterprises that seek simplicity, ease of scalability for OLTP applications, and the highest levels of availability.

Bios

Paul C. Zikopoulos, BA, MBA, is an award-winning writer and speaker with the IBM Database Competitive Technology team. He has more than ten years of experience with DB2 UDB and has written over sixty magazine articles and several books about it. Paul is a DB2 Certified Advanced Technical Expert (DRDA and Cluster/EEE) and a DB2 Certified Solutions Expert (Business Intelligence and Database Administration). You can reach him at: paulz_ibm@msn.com.

Chris Eaton is Senior Product Manager for DB2 Universal Database primarily focused on planning and strategy for DB2 UDB. Chris has been working with DB2 on the Linux, UNIX, Windows platfrom for over 13 years. From customer support to development manager of the DB2 Control Center team to Externals Architect and now as Product Manager for DB2 UDB, Chris has spent his career listening to customers and working to make DB2 a better product. Chris is also the author of The High Availability Guide for DB2, available from Prentice Hall.

Production Credits

Dana Farver, Executive Producer, Communities Editor-in-Chief
Tom Parish, Audio Producer, Show Host
Kimberly Stone, Web Development Manager
Scott Ebner, Web Developer