NetApp
7-mode/HA pair/V-Series : Configuration : Protocols : CIFS : Managing CIFS domains : Schedule password change frequency
Schedule password change frequency
You can schedule the domain password to change once a week to increase the security of the system.
Steps 
1.
From the Home tab, double-click the appropriate storage system to display a subtree of management features.
2.
Under the selected host storage system, click Configuration > Protocols > CIFS.
3.
If the appropriate tab is not displayed, click Domain.
4.
Select the domain for which you want to schedule a weekly password change and click Edit.
5.
Select the option for scheduling a weekly password change and click OK.
The password change occurs at approximately 1:00 a.m. on Sunday.