For HMC-managed systems with POWER5 processors, find System firmware requirements and HMC upgrade methods that should be used for the specified HMC Version(s).
Note: The HMC Save Upgrade Data task is a prerequisite for any HMC upgrade. The task is required to preserve the existing HMC configuration.
| Type of requirement | Minimum level/task | Additional information |
|---|---|---|
| System Firmware | SF230 | Maximum level allowed for POWER5 systems managed by HMCs at V4.x. |
| SF225 | Minimum level required for POWER5 systems managed by HMCs at V4.x. | |
| HMC upgrade method |
Recovery Media | Required for upgrade from HMC V3 R3.7 |