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 HyperSwap with Global Mirror using CSM integration
Prerequisites for this implementation include:
- IBM PowerHA SystemMirror for i Enterprise Edition
- A system running IBM i 7.2 or 7.3, 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
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
- Recovering from an unplanned CRG Global Mirror failover in a HyperSwap with Global Mirror environment
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.