Implementing PowerHA for IBM i

IBM Redbooks, Hernando Bedoya, Paul Swenson, Jana Jamsek, Dave Martin, Sabine Jordan, Monti Abrahams, Jose Goncalves, Kent Kingsley, Vivian Kirkpatrick, Chris Place, Roberta Placido, Larry Youngren, Jim Denton, Kolby Hoelzle, Fred Robinson — 2010

IBM® PowerHATM for i (formerly known as HASM) is the IBM high availability disk-based clustering solution for the IBM i 6.1 operating system. PowerHA for i when combined with IBM i clustering technology delivers a complete high availability and disaster recovery solution for your business applications running in the IBM System i® environment. PowerHA for i enables you to support high-availability capabilities with either native disk storage or IBM DS8000TM or DS6000TM storage servers. This IBM Redbooks® publication gives a broad understanding of PowerHA for i. This book is divided in four major parts: Part 1, "Introduction and Background" on page 1, provides a general introduction to clustering technology and some background. Part 2, "PowerHA for i setup and user interfaces" on page 69, describes and explains the different interfaces that PowerHA for i has. It also describes the migration process to this product and some sizing guidelines. Part 3, "Implementation examples using PowerHA for i" on page 319, explains how to use PowerHA for i with three major ERP solutions, such as SAP®, Lawson M3, and Oracle® JD Edwards®. Part 4, "Other IBM i 6.1 high availability enhancements" on page 349, explains additional IBM i 6.1 announced enhancements in high availability.