To start a service group on a system and bring online only the resources already online on another system
hagrp -online service_group -sys system -checkpartial other_system
Note that the checkpartial option is used by the Preonline trigger during failover. When a service group that is configured with Preonline =1 fails over to another system (system 2), the only resources brought online on system 2 are those that were previously online on system 1 prior to failover.
To bring a service group and its associated child service groups online