Upgrading pools to use VMware vSAN datastores involves changing a pool setting and then rebalancing the pool.
The tasks outlined in this procedure describe upgrading from a non-vSAN datastore to a vSAN datastore. Upgrading from vSAN datastore on a vSphere 5.5 or earlier cluster (a Tech Preview feature) is not supported.
Important: Because this procedure involves recomposing the desktop pool, any changes that end users have made to the operating system disk will be lost.
Prerequisites
- Verify that all ESXi hosts in the cluster used for the pool are upgraded to 5.5 Update 1 or later and that they meet the system requirements for the vSAN feature. VMware recommends that you upgrade to vSphere 6.0 or later because the vSAN feature available with vSphere 6.0 and later releases contains many performance improvements over the feature that was available with vSphere 5.5 Update 1. With vSphere 6.0 this feature also has broader HCL (hardware compatibility) support.
For information about upgrades, see Upgrade ESXi Hosts and Their Virtual Machines and see the VMware vSphere Upgrade Guide. For information about vSAN requirements and upgrades, see the Administering VMware vSAN document.
- In vCenter Server, verify that the following privileges are added to the Composer role:
Profile-Driven Storage: All Folder: Create Folder & Delete Folder Host: Configuration: Advanced settings
