In versions 7.2 and 7.3, PowerHA contains support for Copy Services Manager (CSM) Metro Mirror, Global Mirror, and HyperSwap with Global Mirror.
IBM Copy Services Manager (CSM) is a strategic technology used to manage Metro Mirror or Global Mirror replication as well as other advanced storage capabilities. The integration of CSM with PowerHA for i enables PowerHA to support advanced functionality such as DS8000 HyperSwap with Global Mirror.
Supported sessions
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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CSM integration
Prerequisites for this implementation include:
IBM PowerHA SystemMirror for i Enterprise Edition
A system running IBM i 7.2 or
7.3later, 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. |
Example scenarios using CSM HyperSwap with Global Mirror technology
Configure DS8000 HyperSwap with Global Mirror using Copy Services Manager (CSM)
Performing a HyperSwap switchover in a HyperSwap with Global Mirror configuration
Performing a CRG planned Global Mirror switchover in a HyperSwap with Global Mirror configuration
Recovering from a HyperSwap failover in a HyperSwap with Global Mirror configuration
Related Information
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.