When you reset a server, Cisco UCS Manager sends a pulse on the reset line. You can choose to gracefully shutdown the operating system. If the operating system does not support a graceful shutdown, the server will be power cycled. The option to have Cisco UCS Manager complete all management operations before it resets the server, does not guarantee that these operations will be completed before the server is reset.
The following example performs an immediate hard reset of server 4 in chassis 2 and commits the transaction:
UCS-A# scope server 2/4
UCS-A /chassis/server* # reset hard-reset-immediate
UCS-A /chassis/server* # commit-buffer
UCS-A /chassis/server #