What methods are available to have a UNIX BA client trigger the shutdown of
a Windows server and start it back up again after finishing the backup.

The windows server is running software the relies on an Oracle database and
it does not handle the cold backup of the oracle database.

The UNIX BA client is started via a cron job to shutdown the Oracle DB,
start a TSM backup and wait for it to finish, and then start the Oracle
database.  Is there a way to add a step to the UNIX cron job to trigger the
shutdown of the Windows server and know when it is down in order to go to
the next step.  The same type of trigger would be needed to start up the
Windows server after the Oracle DB starts successfully following the TSM
backup.