Manually setting guest time, the time does not remain correct

  • 3355865
  • 26-Sep-2007
  • 27-Apr-2012

Environment

Novell SUSE Linux Enterprise Server 10
XEN

Situation

When manually setting the guest time or configuring an NTP time source for the guest time, the time does not remain correct. The time will even immediately change to an incorrect time.

Resolution

By default, XEN Guests will pull their time from the XEN host. Either change the XEN host to a correct time or disable time synchronization between XEN Host and Guest.

Note: To disable time synchronization between the XEN host and guests, change the following parameter in the XEN guest configuration file:
  • Log in to the virtual machine environment as root.
  • Edit the virtual machine sysctl.conf file in the /etc directory
  • Add or change the following entry:
    • xen.independent_wallclock=1

More information on XEN time synchronization can be found at https://www.novell.com/documentation/vmserver/config_options/index.html?page=/documentation/vmserver/config_options/data/b9qzhq5.html

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