The VMware VCenter Compatibility Guide
vCenter 6.7 to ESXi compatibility
vCenter server support with ESXi host is very important when it comes to migration as most of the cases migration will happen while VM’s are up and running on existing ESXi hosts.
- ESXi 5.0 or 5.1 with updates cannot be directly upgraded to 6.5 an intermediate upgrade to 5.5 or 6.0 is required.
- ESXi 5.5 or later can be directly upgraded to 6.5 or U1
- ESXi 5.x cannot be directly upgraded to 6.7 an intermediate upgrade to 6.0 is required.
- ESXi 6.0 or later can be directly upgraded to 6.7
Supported vCenter Upgrade Path
- vCenter 5.0 or 5.1 with updates cannot be directly upgraded to 6.5 an intermediate upgrade to 5.5 or 6.0 is required.
- vCenter 5.5 or later can be directly upgraded to 6.5 or U1
- vCenter 5.x cannot be directly upgraded to 6.7 an intermediate upgrade to 6.0 is required.
- vCenter 6.0 or later can be directly upgraded to 6.7
Supported ESXi Upgrade Path
- ESXi 5.0 or 5.1 with updates cannot be directly upgraded to 6.5 an intermediate upgrade to 5.5 or 6.0 is required.
- ESXi 5.5 or later can be directly upgraded to 6.5 or U1
- ESXi 5.x cannot be directly upgraded to 6.7 an intermediate upgrade to 6.0 is required.
- ESXi 6.0 or later can be directly upgraded to 6.7
Decide the vSphere 6.x version to be upgraded to
Based on the available Hardware either new or reusing existing hardware , its compatibility verified as described in above new vSphere 6.x version and Build no needs to be decided. Suppose if the Hardware is compatible with ESXi 6.5 U1 or 6.7 U3. Then vCenter and ESXi upgrades needs to planned for vSphere 6.5 U1 or 6.7 U3, the detailed steps are listed below.
Note that not just hardware, but NIC cards, HBA cards compatibility is also very important if you are reusing existing or new hardware.
vSphere 6.x License and Support
VMWare vSphere license for ESXi and vCenter is based on version , meaning to say if you are an existing customer having ESXi 5.x and vCenter 5.x license it will support only 5.x ( 5.0,5.1,5.5). However if you already have an SA , ESXi and vCenter 5 licenses can be upgraded to 6.x, contact your local vmware partner for support. If you have vSphere 6 licenses and trying to migrate from 6.5 to 6.7, same licenses will work.



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