HP Secure Key Manager - Manual (Page 198)

• Date & Time Procedures
Network Time Protocol overview
The Network Time Protocol (NTP) is a protocol by which computers on a network synchronize their
clocks against an NTP server. The NTP implementation on the SKM allows you to synchronize a clock
manually or at regular intervals.
When the SKM attempts to synchronize its clock against the NTP server(s), one of three outcomes is
possible:
• If the clock on the SKM is successfully synchronized, and the difference between the time on the
SKM and the NTP server(s) is less than 0.5 seconds, the time on the SKM is gradually slewed to
the real time.
• If the clock on the SKM is successfully synchronized, and the difference between the time on the
SKM and the NTP server(s) is greater than 0.5 seconds, the time on the SKM is immediately stepped
to the real time. This event is recorded in the System Log.
• If an error prevented the SKM from synchronizing its clock, an error message is recorded in the
System Log.
NOTE:
Synchronizing the time causes the KMS Server to restart if the time change is greater than one
minute. While restarting, the KMS Server is unavailable for a brief time ranging from a few seconds
to half a minute.
Date & Time Configuration Page
The Date & Time Configuration page enables you to view and edit the date and time settings on the
SKM and manage NTP communications. This page contains the following sections:
• Date and Time Settings
• NTP Settings
Date and Time Settings
Use the Date and Time Settings section, shown here, to view and edit the date, time, and time zone
settings.
Using the Management Console 198