NetApp
Configuration : Local Users and Groups > Users : Managing local users : Changing the local user's password
Changing the local user's password
You can use the Set Password dialog box to change the password for a local user.
Steps 
1.
From the Home tab, double-click the appropriate storage system.
2.
In the navigation pane, click Configuration > Local Users and Groups > Users.
3.
Select the local user whose password you want to modify and click Set Password.
4.
In the Set Password dialog box, type the current password and the new password, confirm the new password, then click Modify.
You have to know the current password if you do not have the necessary permissions to reset the password.
Related reference 
Users window