6.7

Table Of Contents
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Verify that all virtual machines and their .vmdk files are stored on storage connected to the ESXi host
or the client machine.
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Determine the ESXi versions that you want the virtual machines to be compatible with. See Virtual
Machine Compatibility.
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Check whether the guest operating systems of the virtual machines that you upgrade require a power
off. For example, some Linux operating systems do not require a power-off before a virtual machine
compatibility upgrade. See Downtime for Upgrading Virtual Machines.
Procedure
1 In the vSphere Client, navigate to the virtual machine.
2 (Optional) Right-click the virtual machine and select Power > Power Off.
3 Select Actions > Compatibility > Upgrade VM Compatibility.
4 Click Yes to confirm the upgrade.
5 Select a compatibility and click OK.
Schedule a Compatibility Upgrade for Virtual Machines
The virtual machine compatibility determines the virtual hardware available to the virtual machine, which
corresponds to the physical hardware available on the host. You can schedule a compatibility upgrade to
make a virtual machine compatible with newer versions of ESXi.
Use this procedure to schedule an upgrade of one or more virtual machines at the next reboot of the
virtual machine, and choose from all supported compatibility level upgrades. To upgrade virtual machines
immediately to the latest supported compatibility, see Upgrade the Compatibility of a Virtual Machine
Manually.
For information about virtual machine hardware versions and compatibility, see Virtual Machine
Compatibility.
Prerequisites
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Create a backup or snapshot of the virtual machines. See Using Snapshots To Manage Virtual
Machines.
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Upgrade to the latest version of VMware Tools. If you upgrade the compatibility before you upgrade
VMware Tools, the virtual machine might lose its network settings.
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Verify that all .vmdk files are available to the ESX/ESXi host on a VMFS5 or NFS datastore.
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Verify that the virtual machines are stored on VMFS5 or NFS datastores.
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Verify that the compatibility settings for the virtual machines are not the latest supported version.
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Determine the ESXi versions that you want the virtual machines to be compatible with. See Virtual
Machine Compatibility.
vSphere Virtual Machine Administration
VMware, Inc. 280