Step 1: Logged in to your RMC

Step 2:  Check the state of the system. To view the partition configuration, enter show npar.

RMC cli> show npar pnum=0
RMC cli> show complex

If no errors are indicated, then proceed to power up the system.

If there are errors, run

RMC cli>show logs error

and resolve the errors before powering up the system.

Step 3: To power up the system, assuming it is configured with all chassis in one large nPartition numbered 0

RMC cli> power on npar pnum=0

References:

1. HPE Superdome Flex Server – Powering ON and Booting the Server