Cluster date and time

The Network Time Protocol (NTP) service is configurable manually, so you can ensure that all nodes in a cluster are synchronized to the same time source.

The NTP method automatically synchronizes cluster date and time settings through an NTP server. Alternatively, you can set the date and time reported by the cluster by manually configuring the service.

Windows domains provide a mechanism to synchronize members of the domain to a master clock running on the domain controllers, so OneFS adjusts the cluster time to that of Active Directory with a service. If there are no external NTP servers configured, OneFS uses the Windows domain controller as the NTP time server. When the cluster and domain time become out of sync by more than 4 minutes, OneFS generates an event notification.

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If the cluster and Active Directory become out of sync by more than 5 minutes, authentication will not work.