Time Synchronization User's Guide

HP NonStop Time Synchronization User’s Guide Page 38 of 81
amount of potential disruption to the system.
Value Range: True or False
Default Value: False
Example: ReportOnly = True
SyncAt <value>[, <value>, …]
Specifies the list of times each day at which TimeSync sends synchronization requests to
the defined time source(s) in order to update the local system time.
The list of SyncAt times is only utilized if client mode is enabled; if client mode is disabled,
the SyncAt list is ignored. In addition, if one or more times are specified in the SyncAt list,
TimeSync does not initiate sync operations based on the UpdateInterval value discussed
below. Sync operations are only initiated at the configured SyncAt times.
Value Range: {<empty string> | hh[:mm[:ss]] [UTC | LCT] } [, hh[:mm[:ss]] [UTC | LCT], …],
where <empty string> is a null/empty string, hh:[mm[:ss]] specifies the hour, minute, and
second (using a 24-hour clock) at which the sync should occur, and [ UTC | LCT ] specifies
whether the time is a universal (UTC/GMT) time or a local (LCT) time. If a null/empty
string is given, the SyncAt list is cleared and the UpdateInterval value is used to determine
when sync operations should be initiated. If a time is supplied, the hour value is required;
minute and second values are optional and default to 0 if not provided. The UTC and LCT
designator is also optional and defaults to UTC if not provided. Both UTC and LCT times
can be mixed in the SyncAt list.
Default Value: Null/empty string
Example: SyncAt = 01:00 LCT, 12:30:00 UTC, 23:59:59 LCT, 20 LCT
SyncAt =
TimeSource <value>
Defines a time source server which TimeSync should use to obtain time information. The
Client section of the configuration file can contain any number of TimeSource
specifications. The TimeSync process will attempt to access these in the order specified in
the configuration file. If TimeSync cannot access the first time source in the list, it will try
the second, etc. If MultiSource is set to True, TimeSync will send a request to each defined
TimeSource at every update interval.
If you run TimeSync with client mode enabled, you must define at least one TimeSource in