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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


(tick) IBM i 7.5


7.5


10

5.4.2 (November 2023)


(tick) IBM i 7.4


7.4


9

4.10.2 (November 2023)


⚠ IBM i 7.3


7.2


8

3.11 (June 2023)


⚠ IBM i 7.2


7.2


8

3.11 (June 2023)


⚠ IBM i 7.1


7.1


7

2.2

 Previous 7.1 Versions

2.1
2.0

(error) IBM i 6.1

6.1

6

1.0

Release Support Status

(tick) Supported Release

⚠ Extended Support

(error) End of program support

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)

5.4.x

5.3.x

5.2.x

5.1.x

5.0.x

5.4.x

✅

(error)

(error)

(error)

(error)

5.3.x

✅

✅

(error)

(error)

(error)

5.2.x

✅

✅

✅

(error)

(error)

5.1.x

✅

✅

✅

✅

(error)

5.0.x

✅

✅

✅

✅

✅

PowerHA 7.5 in a 4.x Cluster

Current PowerHA Version of Cluster ↓

Potential PowerHA Version (7.5 Node)

5.4.x

5.3.x

5.2.x

5.1.x

5.0.x

4.10.x

✅

(error)

(error)

(error)

(error)

4.9.x

✅

✅

(error)

(error)

(error)

4.8.x

✅

✅

✅

(error)

(error)

4.7.x

✅

✅

✅

✅

(error)

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)

5.4.x

5.3.x

5.2.x

5.1.x

5.0.x

3.11

✅

✅

(error)

(error)

(error)

3.10

✅

✅

✅

(error)

(error)

3.9

✅

✅

✅

✅

(error)

3.7

✅

✅

✅

✅

✅

3.6

✅

✅

✅

✅

✅

3.5

✅

✅

✅

✅

✅

3.4

✅

✅

✅

✅

✅

3.3

✅

✅

✅

✅

✅

3.2

✅

✅

✅

✅

✅

3.1

✅

✅

✅

✅

✅

3.0

✅

✅

✅

✅

✅

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