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Application consistent VMware backup does not quiesce VSS writers or perform a VSS snapshot - Connect IT Community | Kaseya
<main> <article class="userContent"> <h2 data-id="summary"><strong>SUMMARY</strong></h2> <p>Successful application consistent VMware backup causes significant interruption to the VM guest during snapshot operations and/or contains inconsistent application data.</p> <h2 data-id="issue"><strong>ISSUE</strong></h2> <p>The Microsoft Volume Shadow Service (VSS) within the Windows VM attempts to do perform a Volume Shadow Copy, but is unable to read the disk UUID or Serial Number value for one or more virtual machine disks.<br><br>The “disk.EnableUUID” parameter in the Virtual Machine Configuration (VMX) is missing or set to FALSE. </p> <h2 data-id="resolution"><strong>RESOLUTION</strong></h2> <p></p> <ol><li>Open vSphere or ESX host client UI, and log into VMware.</li> <li>Locate the affected virtual machine, and gracefully shut down the virtual machine.</li> <li>After the VM powers off, right-click the virtual machine, and choose <b>Edit Settings</b>.</li> <li>Click <b>VM Options</b> tab, and select <b>Advanced</b>.</li> <li>Click <b>Edit Configuration</b> in Configuration Parameters.</li> <li>Locate disk.EnableUUID </li> <li> If present and set to FALSE, continue to step 10. </li> <li>Click <b>Add parameter</b>.</li> <li>In the Key column, type disk.EnableUUID.</li> <li>In the Value column, type TRUE.</li> <li>Click <b>OK</b> and click <b>Save</b>.</li> <li>Power on the virtual machine</li> </ol><h2 data-id="cause"><strong>CAUSE</strong></h2> <p></p> <ul><li>A virtual machine with OS type “Windows Server 2016” is created using the ESXi 6.0/6.5 Host Client.</li> <li>The virtual machine was created on version 4.0 and older.</li> </ul><h2 data-id="notes"><strong>NOTES</strong></h2> <p><a href="/home/leaving?allowTrusted=1&target=https%3A%2F%2Fkb.vmware.com%2Fs%2Farticle%2F52815">https://kb.vmware.com/s/article/52815</a><br><a href="/home/leaving?allowTrusted=1&target=https%3A%2F%2Fkb.vmware.com%2Fs%2Farticle%2F2146204">https://kb.vmware.com/s/article/2146204</a></p> </article> </main>