NetApp
Configuration : System Tools > Halt/Reboot : Rebooting storage systems
Rebooting storage systems
Rebooting a storage system is commonly performed to allow modified configuration files to take effect or to run a newly installed version of Data ONTAP. You can use the Halt and Reboot window to reboot a storage system. Rebooting stops and then restarts the storage system.
Steps 
1.
From the Home tab, double-click the appropriate storage system.
2.
In the navigation pane, click Configuration > System Tools.
3.
Click Halt and Reboot.
4.
Perform the appropriate action:
If...
Then...
You want to allow clients to terminate connections gracefully and specify the time before rebooting
Select Wait for clients and specify the time.
You want the storage system to perform a core dump before rebooting
Select Dump core.
5.
Click Reboot.
6.
Select the check box in the confirmation window and click Reboot.
Related reference 
Halt/Reboot window