When you use the third-party storage providers, certain requirements and considerations apply.
Typically, vendors are responsible for supplying storage providers. The VMware VASA program defines an architecture that integrates third-party storage providers into the vSphere environment, so that vCenter Server and ESXi hosts can communicate with the storage providers.
To use storage providers, follow these requirements:
Make sure that every storage provider you use is certified by VMware and properly deployed. For information about deploying the storage providers, contact your storage vendor.
Make sure that the storage provider is compatible with the vCenter Server and ESXi versions. See VMware Compatibility Guide.
Do not install the VASA provider on the same system as vCenter Server.
If your environment contains older versions of storage providers, existing functionality continues to work. However, to use new features, upgrade your storage provider to a new version.
When you upgrade a storage provider to a later VASA version, you must unregister and reregister the provider. After registration, vCenter Server can detect and use the functionality of the new VASA version.