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In versions 7.2 and 7.3, PowerHA contains support for Copy Services Manager (CSM) Metro Mirror, Global Mirror, and HyperSwap with Global Mirror.

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PowerHA has integrated support for managing the following types of IBM DS8000 Sessions on Copy Services Manager:

PowerHA Session Type	Corresponding CSM Session Type
Metro Mirror	Metro Mirror Failover/Failback
Global Mirror	Global Mirror Either Direction
HyperSwap with Global Mirror	Metro Mirror-Global Mirror w/Site 3 Global Mirror

These sessions can be combined with other PowerHA technologies such as Logical Unit Number (LUN) switching.

Prerequisites for

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Prerequisites for this implementation include:

IBM PowerHA SystemMirror for i Enterprise Edition
A system running IBM i 7.2 or
7.3
later, using independent auxiliary storage pools (IASPs) for data replication
5770-SS1 Base operating system option 3 - Extended Base Directory Support
5770-SS1 Base operating system option 33 - Portable Application Solutions Environment
Either two DS8000 storage servers for Metro Mirror or Global Mirror configurations, or three DS8000 storage servers for HyperSwap with Global Mirror
IBM Copy Services Manager 6.2.5 or later

Note
Important: PowerHA manages and controls the replication and switching of the external storage environment. Unless directed by IBM support, manual operations performed on the external storage outside of PowerHA are not supported and may result in problems including data loss or corruption.

Consult information about these specific technologies:

Information about setting up and configuring CSM servers can be found within: IBM Copy Services Manager V6.2.5 documentation
For information about using an IBM DS8000 series unit, see: Getting started with Copy Services
See Planning clusters and Configuring clusters for information about setting up a cluster environment.
To review IASP setup and management, see Configuring independent disk pools and Managing independent disk pools in the IBM i Knowledge Center.