6.5.1

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.
Procedure
1 Log in to the vSphere Client and right click a virtual machine.
2 (Optional) Select Power > Power Off.
Some Linux operating systems don't require a power off for VM upgrade.
3 Perform or schedule the upgrade.
Option Description
Manual Upgrade a Select Actions > Compatibility > Upgrade VM Compatibility.
b Click Yes to confirm the upgrade.
c Select a compatibility and click OK.
Scheduled Upgrade a Select Actions > Compatibility > Schedule VM Compatibility Upgrade
b Click Yes to confirm the upgrade.
c Select a compatibility and click OK.
Note: You can select Only upgrade after normal guest OS shutdown. This
prevents the scheduled upgrade from occurring unless the guest operating
system of the virtual machine is shut down or restarted normally.
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 for Virtual Machines.
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 VMFS3, VMFS5, or NFS datastore.
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Verify that the virtual machines are stored on VMFS3, VMFS5 or NFS datastores.
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Verify that the compatibility settings for the virtual machines are not the latest supported version.
vSphere Virtual Machine Administration
VMware, Inc. 234