PowerHA & Cluster Version Compatibility
This chart shows the IBM i and PowerHA release compatibility information. The current PowerHA version can be determined by using the DSPCLUINF command or the QHASM.CLUSTER_INFO SQL service.
IBM i Release | PowerHA Release | Cluster Version | PowerHA Versions |
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| 2.2 2.1 |
IBM i 6.1 | 6.1 | 6 | 1.0 |
Release Support Status | Supported Release | Extended Support | End of program support |
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Cross-Release Version Compatibility
While the PowerHA version typically matches the IBM i version, later PowerHA versions are capable of running with an N-2 release level. For example, a node with a potential version of 5.x can be in a cluster with a node with a potential version of 3.x. This enables easy and systematic upgrades in a PowerHA environment, rather than needing to upgrade all nodes at once.
The PowerHA modification level (second digit) of the version, changes with program temporary fixes (PTFs) or PTF groups. Once a cluster is at a particular modification level, new fixes and functionality is enabled that may cause data conversions. Therefore, in a mixed-release environment, certain PTFs may be required for the nodes to be at a compatible level. The following tables show this compatibility.
PowerHA 7.5
PowerHA 7.5 has a potential PowerHA version of 5.x. A PowerHA 7.5 node requires a minimum PowerHA version of 3.x and a maximum PowerHA version of 5.x.
PowerHA 7.5 in a 5.x Cluster
Current PowerHA Version of Cluster ↓ | Potential PowerHA Version (7.5 Node) | |||||
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5.5.x | 5.4.x | 5.3.x | 5.2.x | 5.1.x | 5.0.x | |
5.5.x | ✅ | |||||
5.4.x | ✅ | ✅ | ||||
5.3.x | ✅ | ✅ | ✅ | |||
5.2.x | ✅ | ✅ | ✅ | ✅ | ||
5.1.x | ✅ | ✅ | ✅ | ✅ | ✅ | |
5.0.x | ✅ | ✅ | ✅ | ✅ | ✅ | ✅ |
PowerHA 7.5 in a 4.x Cluster
Current PowerHA Version of Cluster ↓ | Potential PowerHA Version (7.5 Node) | |||||
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5.5.x | 5.4.x | 5.3.x | 5.2.x | 5.1.x | 5.0.x | |
4.11.x | ✅ | |||||
4.10.x | ✅ | ✅ | ||||
4.9.x | ✅ | ✅ | ✅ | |||
4.8.x | ✅ | ✅ | ✅ | ✅ | ||
4.7.x | ✅ | ✅ | ✅ | ✅ | ✅ | |
4.6.x | ✅ | ✅ | ✅ | ✅ | ✅ | ✅ |
4.5.x | ✅ | ✅ | ✅ | ✅ | ✅ | ✅ |
4.4.x | ✅ | ✅ | ✅ | ✅ | ✅ | ✅ |
4.3.x | ✅ | ✅ | ✅ | ✅ | ✅ | ✅ |
4.2.x | ✅ | ✅ | ✅ | ✅ | ✅ | ✅ |
4.1.x | ✅ | ✅ | ✅ | ✅ | ✅ | ✅ |
4.0.x | ✅ | ✅ | ✅ | ✅ | ✅ | ✅ |
PowerHA 7.5 in a 3.x Cluster
Current PowerHA Version of Cluster ↓ | Potential PowerHA Version (7.5 Node) | |||||
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5.5.x | 5.4.x | 5.3.x | 5.2.x | 5.1.x | 5.0.x | |
3.11 | ✅ | ✅ | ✅ | |||
3.10 | ✅ | ✅ | ✅ | ✅ | ||
3.9 | ✅ | ✅ | ✅ | ✅ | ✅ | |
3.8 | ✅ | ✅ | ✅ | ✅ | ✅ | ✅ |
3.7 | ✅ | ✅ | ✅ | ✅ | ✅ | ✅ |
3.6 | ✅ | ✅ | ✅ | ✅ | ✅ | ✅ |
3.5 | ✅ | ✅ | ✅ | ✅ | ✅ | ✅ |
3.4 | ✅ | ✅ | ✅ | ✅ | ✅ | ✅ |
3.3 | ✅ | ✅ | ✅ | ✅ | ✅ | ✅ |
3.2 | ✅ | ✅ | ✅ | ✅ | ✅ | ✅ |
3.1 | ✅ | ✅ | ✅ | ✅ | ✅ | ✅ |
3.0 | ✅ | ✅ | ✅ | ✅ | ✅ | ✅ |
PowerHA 7.4
PowerHA 7.4 has a potential PowerHA version of 4.x. A PowerHA 7.4 node requires a minimum PowerHA version of 2.x and a maximum PowerHA version of 4.x.
PowerHA 7.4 in a 4.x Cluster
Current PowerHA Version of Cluster ↓ | Potential PowerHA Version (7.4 Node) | |||||||||||
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4.11.x | 4.10.x | 4.9.x | 4.8.x | 4.7.x | 4.6.x | 4.5.x | 4.4.x | 4.3.x | 4.2.x | 4.1.x | 4.0.x | |
4.11.x | ✅ | |||||||||||
4.10.x | ✅ | ✅ | ||||||||||
4.9.x | ✅ | ✅ | ✅ | |||||||||
4.8.x | ✅ | ✅ | ✅ | |||||||||
4.7.x | ✅ | ✅ | ✅ | ✅ | ✅ | |||||||
4.6.x | ✅ | ✅ | ✅ | ✅ | ✅ | ✅ | ||||||
4.5.x | ✅ | ✅ | ✅ | ✅ | ✅ | ✅ | ✅ | |||||
4.4.x | ✅ | ✅ | ✅ | ✅ | ✅ | ✅ | ✅ | ✅ | ||||
4.3.x | ✅ | ✅ | ✅ | ✅ | ✅ | ✅ | ✅ | ✅ | ✅ | |||
4.2.x | ✅ | ✅ | ✅ | ✅ | ✅ | ✅ | ✅ | ✅ | ✅ | ✅ | ||
4.1.x | ✅ | ✅ | ✅ | ✅ | ✅ | ✅ | ✅ | ✅ | ✅ | ✅ | ✅ | |
4.0.x | ✅ | ✅ | ✅ | ✅ | ✅ | ✅ | ✅ | ✅ | ✅ | ✅ | ✅ | ✅ |
PowerHA 7.4 in a 3.x Cluster
Current PowerHA Version of Cluster ↓ | Potential PowerHA Version (7.4 Node) | |||||||||||
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4.11.x | 4.10.x | 4.9.x | 4.8.x | 4.7.x | 4.6.x | 4.5.x | 4.4.x | 4.3.x | 4.2.x | 4.1.x | 4.0.x | |
3.11 | ✅ | ✅ | ✅ | |||||||||
3.10 | ✅ | ✅ | ✅ | ✅ | ||||||||
3.9 | ✅ | ✅ | ✅ | ✅ | ✅ | |||||||
3.8 | ✅ | ✅ | ✅ | ✅ | ✅ | ✅ | ||||||
3.7 | ✅ | ✅ | ✅ | ✅ | ✅ | ✅ | ✅ | |||||
3.6 | ✅ | ✅ | ✅ | ✅ | ✅ | ✅ | ✅ | ✅ | ||||
3.5 | ✅ | ✅ | ✅ | ✅ | ✅ | ✅ | ✅ | ✅ | ✅ | |||
3.4 | ✅ | ✅ | ✅ | ✅ | ✅ | ✅ | ✅ | ✅ | ✅ | ✅ | ||
3.3 | ✅ | ✅ | ✅ | ✅ | ✅ | ✅ | ✅ | ✅ | ✅ | ✅ | ✅ | |
3.2 | ✅ | ✅ | ✅ | ✅ | ✅ | ✅ | ✅ | ✅ | ✅ | ✅ | ✅ | ✅ |
3.1 | ✅ | ✅ | ✅ | ✅ | ✅ | ✅ | ✅ | ✅ | ✅ | ✅ | ✅ | ✅ |
3.0 | ✅ | ✅ | ✅ | ✅ | ✅ | ✅ | ✅ | ✅ | ✅ | ✅ | ✅ | ✅ |
PowerHA 7.4 in a 2.x Cluster
Current PowerHA Version of Cluster ↓ | Potential PowerHA Version (7.4 Node) | |||||||||||
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4.11.x | 4.10.x | 4.9.x | 4.8.x | 4.7.x |