Power On
Use the Power On task to start a managed system.
Choose from the following options to power on your managed system:
- Auto-Start Always: This option specifies that the HMC power on logical partitions automatically after the managed system powers on. If powering on the managed system is the result of a user action, the HMC starts all partitions that are configured for automatic startup. If powering on the managed system is the result of an automatic recovery process, the HMC starts only those logical partitions that were running at the time the system is powered off. This option is always available for selection.
- Stop at Partition Standby: This option specifies that logical partition startup is in standby mode after the managed system powers on and the HMC does not start any logical partitions when the managed system powers on. If powering on the managed system is the result of an automatic recovery process and the HMC is used to start a logical partition, the HMC starts all logical partitions that were running at the time the system is powered off. This option is available for selection only when the firmware for the managed system does not support advanced IPL capabilities.
- Auto-Start for Auto-Recovery: This option specifies that the HMC power on logical partitions automatically only after the managed system powers on as the result of an automatic recovery process. This option is available for selection only when the firmware for the managed system supports this advanced IPL capability.
- User-Initiated: This option specifies that the HMC does not start any logical partitions when the managed system powers on. You must start logical partitions manually on the managed system by using the HMC. This option is available for selection only when the firmware for the managed system supports this advanced IPL capability.
You can set the partition start policy from the Power On Parameters page of the Properties task for the managed system.
System profile: Selecting this power-on option specifies that the HMC power on the system and its logical partitions based on a predefined system profile. When you select this power-on option, you must select the partition profile that you want the HMC to use to activate logical partitions on the managed system.
Hardware Discovery: Selecting this power-on option specifies that the HMC run the hardware discovery process when the managed system powers on. The hardware discovery process captures information about all I/O devices, in particular those devices that are not currently assigned to partitions. When you select the hardware discovery power on option for a managed system, the managed system is powered on into a special mode that performs the hardware discovery. After the Hardware Discovery process is complete, the system will be in Operating state with any partitions in the power-off state. The hardware discovery process records the hardware inventory in a cache on the managed system. The collected information is then available for use when you display data for I/O devices or when you create a system plan based on the managed system. This option is available only if the system is capable of using the hardware discovery process to capture I/O hardware inventory for the managed system.