HP NonStop G-Series - Manual (Page 14)

HP NonStop Time Synchronization User’s Guide Page 14 of 81
General Features
 Allows any supported system to act as a Time Synchronization Server.
 Allows any supported system to operate as a Time Synchronization Client.
 Supports both Guardian and OSS environments on NonStop servers.
 Runs as a service on Microsoft Windows and as a daemon on Linux.
 Integrates with native event management services on each platform to enable
logging of critical events (EMS on NonStop, syslog on Linux, and the Windows event
log on Windows).
 Maintains a dedicated log file of time synchronization activities.
 No overhead or impact on performance.
 Provides the TimeCom command interpreter (CI), which can be used to dynamically
alter TimeSync settings and obtain status information.
Client Features
 Up to microsecond accuracy, depending on the system.
 Can be configured to safely update system clocks by preventing both backward time
changes and drastic jumps in time.
 Includes Multisource mode, which permits clock averaging from among multiple
sources to yield a more accurate reference time.
 Provides a configurable offset for system clocks not kept in GMT/UTC.
 Offers a report-only mode which can be used to report time differences between the
local system and reference sources without updating the local system time.
Server Features
 Provides the ability to act as time source for any system running TimeSync in client
mode.
 Has the capability to act as the time source for any system running an NTP or SNTP
client.
 Allows systems that do not keep system time in GMT/UTC to act as time sources via a
configurable offset.