@ayas ,

This can be achieved using racadm. You can use below command to achieve the same. As this is a BIOS setting you need to reboot the server to apply the setting.

Command to disable power button

racadm set bios.SysSecurity.PwrButton Disabled

Command to create a BIOS Job and to power cycle immediately

racadm jobqueue create BIOS.Setup.1-1 -r pwrcycle -s TIME_NOW

You can run below command to ser various reboot option for above command

racadm jobqueue help create

hi Shine

thanks you for the reply !

OK ,,, racadm set bios.SysSecurity.PwrButton Disabled would be the One !

thanks !

aya

Hello,

please let us know if you need more support. 
Thanks

Marco