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
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 managing
its time independently from the host.
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 le.
3
Add or change the following entry:
xen.independent_wallclock=1
Enter 1 to enable or 0 to disable the wallclock setting.
4
Save the le and reboot the virtual machine operating system.
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 le, it manages its clock time
independently and does not synchronize with the host clock time.
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
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