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    <title>topic Re: Snapshotting of VM causing NTP time drift - should I use Tools to sync instead? in VMware vSphere™ Discussions</title>
    <link>https://communities.vmware.com/t5/VMware-vSphere-Discussions/Snapshotting-of-VM-causing-NTP-time-drift-should-I-use-Tools-to/m-p/477352#M4175</link>
    <description>&lt;HTML&gt;&lt;HEAD&gt;&lt;/HEAD&gt;&lt;BODY&gt;&lt;P&gt;Think I'm gonna try this option....only problem is it's a power off of VM.&lt;/P&gt;&lt;P&gt;Maintenance window here I come!&lt;/P&gt;&lt;/BODY&gt;&lt;/HTML&gt;</description>
    <pubDate>Fri, 05 Jul 2019 10:00:40 GMT</pubDate>
    <dc:creator>handsy</dc:creator>
    <dc:date>2019-07-05T10:00:40Z</dc:date>
    <item>
      <title>Snapshotting of VM causing NTP time drift - should I use Tools to sync instead?</title>
      <link>https://communities.vmware.com/t5/VMware-vSphere-Discussions/Snapshotting-of-VM-causing-NTP-time-drift-should-I-use-Tools-to/m-p/477347#M4170</link>
      <description>&lt;HTML&gt;&lt;HEAD&gt;&lt;/HEAD&gt;&lt;BODY&gt;&lt;P&gt;I have Veeam taking nightly backups of some large VMs. Each night at the time of snapshotting/consolidation, NTP spikes and drifts back in time approximately 30 minutes!&lt;/P&gt;&lt;P&gt;I'm thinking of using VMWare Tools to sync time on these VMs instead.&lt;/P&gt;&lt;P&gt;Anyone have any comments on that please?&lt;/P&gt;&lt;P&gt;Thanks&lt;/P&gt;&lt;/BODY&gt;&lt;/HTML&gt;</description>
      <pubDate>Mon, 01 Jul 2019 09:50:34 GMT</pubDate>
      <guid>https://communities.vmware.com/t5/VMware-vSphere-Discussions/Snapshotting-of-VM-causing-NTP-time-drift-should-I-use-Tools-to/m-p/477347#M4170</guid>
      <dc:creator>handsy</dc:creator>
      <dc:date>2019-07-01T09:50:34Z</dc:date>
    </item>
    <item>
      <title>Re: Snapshotting of VM causing NTP time drift - should I use Tools to sync instead?</title>
      <link>https://communities.vmware.com/t5/VMware-vSphere-Discussions/Snapshotting-of-VM-causing-NTP-time-drift-should-I-use-Tools-to/m-p/477348#M4171</link>
      <description>&lt;HTML&gt;&lt;HEAD&gt;&lt;/HEAD&gt;&lt;BODY&gt;&lt;P&gt;Hi,&lt;/P&gt;&lt;P&gt;&lt;/P&gt;&lt;P&gt;How many and how large VMs we are talking about here ?&lt;/P&gt;&lt;P&gt;What troubleshooting steps /analysis have you performed till now ?&lt;/P&gt;&lt;/BODY&gt;&lt;/HTML&gt;</description>
      <pubDate>Wed, 03 Jul 2019 14:47:24 GMT</pubDate>
      <guid>https://communities.vmware.com/t5/VMware-vSphere-Discussions/Snapshotting-of-VM-causing-NTP-time-drift-should-I-use-Tools-to/m-p/477348#M4171</guid>
      <dc:creator>pragg12</dc:creator>
      <dc:date>2019-07-03T14:47:24Z</dc:date>
    </item>
    <item>
      <title>Re: Snapshotting of VM causing NTP time drift - should I use Tools to sync instead?</title>
      <link>https://communities.vmware.com/t5/VMware-vSphere-Discussions/Snapshotting-of-VM-causing-NTP-time-drift-should-I-use-Tools-to/m-p/477349#M4172</link>
      <description>&lt;HTML&gt;&lt;HEAD&gt;&lt;/HEAD&gt;&lt;BODY&gt;&lt;P&gt;6x VMs - varying no. of CPUs from 6 to 14, varying memory from 64GB to 128GB, i.e. large VMs.&lt;/P&gt;&lt;P&gt;I've tinkered with NTP till the cows come home, I've increased CPU shares to HIGH for all of these VMs.&lt;/P&gt;&lt;P&gt;I've not tried to reserve CPU yet, or disabled NTP and tried sync'ing through Tools.&lt;/P&gt;&lt;/BODY&gt;&lt;/HTML&gt;</description>
      <pubDate>Thu, 04 Jul 2019 19:39:40 GMT</pubDate>
      <guid>https://communities.vmware.com/t5/VMware-vSphere-Discussions/Snapshotting-of-VM-causing-NTP-time-drift-should-I-use-Tools-to/m-p/477349#M4172</guid>
      <dc:creator>handsy</dc:creator>
      <dc:date>2019-07-04T19:39:40Z</dc:date>
    </item>
    <item>
      <title>Re: Snapshotting of VM causing NTP time drift - should I use Tools to sync instead?</title>
      <link>https://communities.vmware.com/t5/VMware-vSphere-Discussions/Snapshotting-of-VM-causing-NTP-time-drift-should-I-use-Tools-to/m-p/477350#M4173</link>
      <description>&lt;HTML&gt;&lt;HEAD&gt;&lt;/HEAD&gt;&lt;BODY&gt;&lt;P&gt;Ok.&lt;/P&gt;&lt;P&gt;Need some more insight into the affected VMs as my initial guess is that your issue maybe due to snapshot since only 6 VMs are facing the issue.&lt;/P&gt;&lt;P&gt;1. Since when you are facing the NTP issue ?&lt;/P&gt;&lt;P&gt;2. Around the time as per ques 1, any changes in VMs/backup/storage infrastructure made ?&lt;/P&gt;&lt;P&gt;3. Total size of each VM w.r.t disk?&lt;/P&gt;&lt;P&gt;4. Any active or manual snapshot on VMs before backup snapshot process starts ?&lt;/P&gt;&lt;P&gt;5. What is the stun time for each VM when snapshot process occurs (when VM is not accessible over network) ?&lt;/P&gt;&lt;P&gt;6. What's the underlying storage type for these VMs? HDD or SSD ?&lt;/P&gt;&lt;/BODY&gt;&lt;/HTML&gt;</description>
      <pubDate>Thu, 04 Jul 2019 20:21:11 GMT</pubDate>
      <guid>https://communities.vmware.com/t5/VMware-vSphere-Discussions/Snapshotting-of-VM-causing-NTP-time-drift-should-I-use-Tools-to/m-p/477350#M4173</guid>
      <dc:creator>pragg12</dc:creator>
      <dc:date>2019-07-04T20:21:11Z</dc:date>
    </item>
    <item>
      <title>Re: Snapshotting of VM causing NTP time drift - should I use Tools to sync instead?</title>
      <link>https://communities.vmware.com/t5/VMware-vSphere-Discussions/Snapshotting-of-VM-causing-NTP-time-drift-should-I-use-Tools-to/m-p/477351#M4174</link>
      <description>&lt;HTML&gt;&lt;HEAD&gt;&lt;/HEAD&gt;&lt;BODY&gt;&lt;P&gt;You can disable the "back drifting" of time by editing the VMs .vmx file.. &lt;/P&gt;&lt;P&gt;&lt;A href="https://kb.vmware.com/s/article/1189" title="https://kb.vmware.com/s/article/1189"&gt;VMware Knowledge Base&lt;/A&gt;&amp;nbsp; &lt;/P&gt;&lt;P&gt;&lt;/P&gt;&lt;P&gt;Not ideal.... but it should work.&lt;/P&gt;&lt;P&gt;&lt;/P&gt;&lt;P&gt;/Rubeck&amp;nbsp;&amp;nbsp; &lt;/P&gt;&lt;/BODY&gt;&lt;/HTML&gt;</description>
      <pubDate>Fri, 05 Jul 2019 06:09:18 GMT</pubDate>
      <guid>https://communities.vmware.com/t5/VMware-vSphere-Discussions/Snapshotting-of-VM-causing-NTP-time-drift-should-I-use-Tools-to/m-p/477351#M4174</guid>
      <dc:creator>Rubeck</dc:creator>
      <dc:date>2019-07-05T06:09:18Z</dc:date>
    </item>
    <item>
      <title>Re: Snapshotting of VM causing NTP time drift - should I use Tools to sync instead?</title>
      <link>https://communities.vmware.com/t5/VMware-vSphere-Discussions/Snapshotting-of-VM-causing-NTP-time-drift-should-I-use-Tools-to/m-p/477352#M4175</link>
      <description>&lt;HTML&gt;&lt;HEAD&gt;&lt;/HEAD&gt;&lt;BODY&gt;&lt;P&gt;Think I'm gonna try this option....only problem is it's a power off of VM.&lt;/P&gt;&lt;P&gt;Maintenance window here I come!&lt;/P&gt;&lt;/BODY&gt;&lt;/HTML&gt;</description>
      <pubDate>Fri, 05 Jul 2019 10:00:40 GMT</pubDate>
      <guid>https://communities.vmware.com/t5/VMware-vSphere-Discussions/Snapshotting-of-VM-causing-NTP-time-drift-should-I-use-Tools-to/m-p/477352#M4175</guid>
      <dc:creator>handsy</dc:creator>
      <dc:date>2019-07-05T10:00:40Z</dc:date>
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