Positioning Information
PowerHA can be used in conjunction with an IBM i hosting I environment to provide disaster recovery for a production partition. This is not a standard PowerHA cluster/IASP environment, but rather a full system replication solution used by some customers as a DR solution. In this environment, the full production partition including the operating system is hosted in a network storage space within an IASP on the host partition. That IASP is then replicated using PowerHA to a backup host partition. In the event of a failure of the production partition, the target IASP and NWSD can be varied on, and the production partition can be IPLed on the second system.
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If the above steps are not followed, or in the case of an unplanned failure of the production system or of the host system, pages in memory may not have been written to disk on either the production or host system. When varying on the target IASP, non-journaled objects may be marked as damaged, and those objects would need to be recovered from a system save.
Setup Information
Here is a link to a document on how to set up an IBM i hosting IBM i environment. This document discusses many forms of virtualization available on IBM i. Chapter 2 is dedicated to IBM i hosting IBM i.
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