Novell XEN - ADMINISTRATION Manual page 74

clock setting must be enabled (set to 1). Otherwise, it will continue to synchronize its
time with its host.
Procedure 6.1 Viewing the Independent Wallclock Setting
1 Log in to the virtual machine's operating system as root.
2 In the virtual machine environment, enter
Procedure 6.2 Permanently Changing the Independent Wallclock Setting
1 Log in to the virtual machine environment as root.
2 Edit the virtual machine's /etc/sysctl.conf file.
3 Add or change the following entry:
4 Save the file and reboot the virtual machine operating system.
Procedure 6.3 Temporarily Changing the Independent Wallclock Setting
1 Log in to the virtual machine environment as root.
2 Enter the following command:
68 Virtualization with Xen
cat /proc/sys/xen/independent_wallclock
• 0 means that the virtual machine is getting its time from the host and is not
using independent wallclock.
• 1 means that the virtual machine is using independent wallclock and manag-
ing its time independently from the host.
xen.independent_wallclock=1
Enter 1 to enable or 0 to disable the wallclock setting.
While booting, a virtual machine gets its initial clock time from the host. Then,
if the wallclock setting is set to 1 in the sysctl.conf file, it manages its clock
time independently and does not synchronize with the host clock time.