Configure ONTAP time services for SMB servers
Before creating an SMB server in an Active Domain controller, you must ensure that the cluster time and the time on the domain controllers of the domain to which the SMB server will belong matches to within five minutes.
You should configure cluster NTP services to use the same NTP servers for synchronization that the Active Directory domain uses.
Beginning with ONTAP 9.5, you can set up your NTP server with symmetric authentication.
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Configure time services by using the
cluster time-service ntp server createcommand.- 
To configure time services without symmetric authentication enter the following command:
cluster time-service ntp server create -server server_ip_address - 
To configure time services with symmetric authentication, enter the following command:
cluster time-service ntp server create -server server_ip_address -key-id key_idcluster time-service ntp server create -server 10.10.10.1cluster time-service ntp server create -server 10.10.10.2 
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Verify that time services are set up correctly by using the
cluster time-service ntp server showcommand.cluster time-service ntp server showServer Version ------------------------------ ------- 10.10.10.1 auto 10.10.10.2 auto