A managed system can be turned on using the command “ms poweron”:

ms [-h <hmc>] poweron [-k <keylock_position>] [-o <operation>] [-v] <ms>
   -k : keylock-position (not valid for BMC managed systems)
      norm - normal position (default)
      manual - manual position
   -o : operation to perform
      on - on (default)
      onstandby - power on to standby state
      onstartpolicy - power on according to start-policy
      onsysprof - power on and activate partitions from system profile
      onhwdisc - power on and run hardware discovery process

If a managed system is in the “Power off” state, it can be powered on with the “ms poweron” command:

$ ms poweron ms12
$

It takes a few minutes (or longer for larger systems) for the managed system to power on. The hardware is first initialized, which can take some time. After initialization, the managed system switches to the “Operating” state.

The option “-o” can also be used to switch to the “standby” state, for example:

$ ms poweron -o onstandby ms12
$

Or a hardware discovery process can be started:

$ ms poweron -o onhwdisc ms12
$

When the hardware discovery process is complete, the managed system is in the “Operating” state. However, no LPARs are started.

The “-o” option offers further options, such as activating LPARs according to the system profile (onsysprof) and starting LPARs according to the partition start policy (onstartpolicy).

Additionally, for non-eBMC systems, the key position can be specified using the “-k” option.