Implementing PowerHA for IBM i

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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.


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