vmware guest 禁用时间同步

 

http://kb.vmware.com/selfservice/microsites/search.do?language=en_US&cmd=displayKC&externalId=1189

 

 

描述

VMware Tools 控制面板去掉时间同步复选框后，仍然后有时间同步的问题：

当你暂停一个虚拟机，在下一次恢复虚拟机后时间同不会自动与主机进行同步。

时间同步用于迁移虚拟机基于vMotion,快照，恢复一个快照，带化虚拟硬盘，或者重启 VMware Tools 服务 在虚拟机（包括重启虚拟机）

解决方案

时间同步复选框复选控制周期的进行同步虚拟机当虚拟机正在运行的时候。设置时间同步复选框未勾选的情况下，在默认情况下VMware Tools会同步时间在一些时间。

有两种方式可以禁用客户机的时间同步。

 

• 在虚拟机的vmx文件添加配置参数

 

1. 用文本编辑器打开虚拟机配置文件 (/vmfs/volumes/datastore_name/vm_name/vm_name.vmx)
2. 设置这些选项的值为0，如果参数不存在添加这些项。
3. 注意: 0 = disable, 1 = enable.
   tools.syncTime = "0"
time.synchronize.continue = "0"
time.synchronize.restore = "0"
time.synchronize.resume.disk = "0"
time.synchronize.shrink = "0"
time.synchronize.tools.startup = "0"
time.synchronize.tools.enable = "0"
time.synchronize.resume.host = "0"
4. 注意： In GSX, VMware Fusion, VMware Player and VMware Workstation, you must use "FALSE" instead of "0". For example:
   tools.syncTime = "FALSE"
time.synchronize.continue = "FALSE"
time.synchronize.restore = "FALSE"
time.synchronize.resume.disk = "FALSE"
time.synchronize.shrink = "FALSE"
time.synchronize.tools.startup = "FALSE"
time.synchronize.tools.enable = "FALSE"
time.synchronize.resume.host = "FALSE"
5. vSphere Client中添加配置文件:

           选择需要更改的虚拟机，关闭电源。

           在Summary标签，单击Edit Settings.

           点击Options标签，单击通用（在Advanced选件下面）

          点击配置参数，点击Add Row添加如下信息
            Name    Value
           tools.syncTime    0
           time.synchronize.continue    0
           time.synchronize.restore    0
           time.synchronize.resume.disk    0
           time.synchronize.shrink    0
           time.synchronize.tools.startup    0
           time.synchronize.tools.enable    0
           time.synchronize.resume.host    0

官方文档参考

Details
In the VMware Tools control panel, the time synchronization checkbox is unselected, but you may experience these symptoms:

    When you suspend a virtual machine, the next time you resume that virtual machine it synchronizes the time to adjust it to the host.
    Time is resynchronized when you migrate the virtual machine using vMotion, take a snapshot, restore to a snapshot, shrink the virtual disk, or restart the VMware Tools service in the virtual machine (including rebooting the virtual machine).

Solution
The time synchronization checkbox controls only whether time is periodically resynchronized while the virtual machine is running. Even if this box is unselected, by default VMware Tools synchronizes the virtual machine's time after a few specific events that are likely to leave the time incorrect.

There are two methods to completely disable time synchronization in the guest. Perform one of these procedures:

Note: Unlike the normal periodic time sync, which can move the guest clock only forward, these special time syncs can move the guest clock either forward or backward. If you want your guests to never sync backward in time, disable the options (by selecting "0" for each option).

    Add configuration options in the virtual machine's .vmx file:

        Open the virtual machine's configuration file (/vmfs/volumes/datastore_name/vm_name/vm_name.vmx) using a text editor.
        Set these options to zero. If the entries do not exist, add them.

        Note: 0 = disabled, 1 = enabled.

        tools.syncTime = "0"
        time.synchronize.continue = "0"
        time.synchronize.restore = "0"
        time.synchronize.resume.disk = "0"
        time.synchronize.shrink = "0"
        time.synchronize.tools.startup = "0"
        time.synchronize.tools.enable = "0"
        time.synchronize.resume.host = "0"

        Note: In GSX, VMware Fusion, VMware Player and VMware Workstation, you must use "FALSE" instead of "0". For example:

        tools.syncTime = "FALSE"
        time.synchronize.continue = "FALSE"
        time.synchronize.restore = "FALSE"
        time.synchronize.resume.disk = "FALSE"
        time.synchronize.shrink = "FALSE"
        time.synchronize.tools.startup = "FALSE"
        time.synchronize.tools.enable = "FALSE"
        time.synchronize.resume.host = "FALSE"

    Add configuration parameters using the vSphere Client:

        Select the virtual machine in the vSphere Client inventory and power it off.
        On the Summary tab, click Edit Settings.
        Click the Options tab and click General (under Advanced).
        Click Configuration Parameters, then click Add Row and add this information:

        Name    Value
        tools.syncTime    0
        time.synchronize.continue    0
        time.synchronize.restore    0
        time.synchronize.resume.disk    0
        time.synchronize.shrink    0
        time.synchronize.tools.startup    0
        time.synchronize.tools.enable    0
        time.synchronize.resume.host    0

    Note: When adding tools.syncTime via the Configuration Parameters in vSphere 5.x, it will not be displayed again after the entry has been accepted and closed. When you view the vm_name.vmx file, you see the parameter inserted as tools.syncTime = "FALSE".

This Article Replaces
1006449
Update History
04/20/2012 - Added time.synchronize.tools.enable = "0" and added note about disbling backward time sync 06/17/2011 - Added time.syncronize.resume.host = "0" as an options 06/18/2013 - Added note on how to set the options in VMware Fusion/Workstation 03/03/2014- Added VMware Player to Note about using Flase for setting options
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