Updating Virtual Machine server credentials

Im really newby on this.

I just updated the credentials of Virtual machine servers on Netbackup. after this i receive a message stating that daemons and processes should be restarted on netbackup server and Media servers involved. its possible to do this without rebooting the server ? how can i do this? can i "suspend" and "resume" running jobs during the restart process not affecting the running backups?

My netbackup server is running on a Linux machine and the media server is a Windows server .

regards