Values for IPL types and system operating modes
Learn about the valid initial program load (IPL) types, system operating modes, firmware IPL, and Hypervisor types that are used in control panel functions.
The following table shows the valid values for the IPL types and their descriptions.
Note: Operating system IPL types
are displayed only when the operating system IPL mode has been enabled
from the operating system.
| Initial program load (IPL) type | Action or description |
|---|---|
| A | IPL from disk using copy A of the system Licensed Internal Code. |
| B | IPL from disk using copy B of the system Licensed Internal Code. |
| C | Reserved for hardware service use
only. Attention: Incorrect use of this function can cause
severe data loss.
|
| D | IPL from media other than load-source disk. Alternate IPL for code installation support. |
The following table shows the valid values for the operating mode.
| System operating mode | Action or description |
|---|---|
| Manual (M) | Allows you to perform an attended IPL and provides access to restricted control panel functions. |
| Normal (N) | Allows you to perform an unattended IPL. |
The following table shows the valid values for firmware IPL types.
| IPL type | Action or description |
|---|---|
| P | IPL from disk using copy P of the system Licensed Internal Code. |
| T | IPL from disk using copy T of the system Licensed Internal Code. |
The following table shows valid values for the Hypervisor types.
| Hypervisor type | Action or description |
|---|---|
| PVM | Power® Virtualization Manager |
| OPAL | Open Power Abstraction Layer |
