The following tasks should be completed when planning a vSphere 6.7 upgrade:
- Verify existing hardware is on the VMware Hardware Compatibility List (HCL) at https://www.vmware.com/go/hcl.
- Check for interoperability between VMware products using the VMware Product Interoperability Matrix at http://partnerweb.vmware.com/comp_guide2/sim/interop_matrix.php.
- Determine interoperability and support between VMware vSphere 6.7 and third-party hardware and software products.
- Determine the proper upgrade path and sequence.
- Note that direct upgrades from vSphere 5.x to 6.7 are not supported. You'll need to upgrade your 5.x environment to 6.0 or 6.5 before upgrading to 6.7.
Completing these steps to properly plan a vSphere 6.7 upgrade will ensure the upgrade can be completed successfully.