VMware vSphere Fault Tolerance (vSphere FT) becomes disabled during the snapshot process. If you use an ESXi host with an unsupported build, vSphere FT protection might become disabled during the snapshot process. This issue occurs because of an issue in earlier versions of the VMware ESXi host.
To back up virtual machines that are protected by vSphere FT with plug-in version 11.2 or later, your environment must use VMware ESXi 6.0 build number 4192238 or later. This issue occurs because of an issue in earlier versions of the VMware ESXi host. This issue is more likely to occur when the virtual machine uses Windows 2008 or later as the guest OS and it uses the VMware Tools VSS provider to take quiesced snapshots. For more information, see https://kb.vmware.com/kb/2145664.
To allow VVols to create thick-provisioned disks, enable thick provisioning on the storage array. For more information, see http://pubs.vmware.com/Release_Notes/en/horizon-6-view/horizon-62-view-release-notes.html.
If you are using CentOS and Red Hat Enterprise Linux (RHEL) 6.x systems as the backup proxy, and the Primary Transport Mode is set to HotAdd or Auto and the Fallback Transport Mode is set to none, a VMware VDDK library prevents the backup proxy from opening the VM disk in HotAdd transport mode and causes it to open in NBD transport mode instead.
The Diagnose Virtual Machine method includes some predefined tests, which are used to identify issues in virtual machine setup that can cause failures when the plug-in performs the following activities:
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Start the Backup Job Wizard, and click next to the Selections list. |
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Click the virtual machine, and select Diagnose Virtual Machine from the context menu. |
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View the results in the Diagnostic Results dialog box: |
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Results: This tab shows the results of the diagnostic tests (passed or failed). |
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Recommendations: This tab includes suggestions to correct the issues detected during the tests. |
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Virtual Machine: This tab shows general information about the virtual machine. |
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