Installing a cluster RecoveryPoint for VMs

Hello all, While creating the cluster I go following errors? I a running into a UnityVSA VVol, its not supported? There is more than 800GB free :) My its a shared storage from several ESXi Hosts and vCenter 6.5U2. Validate enough space for all dummy devices on the resource pool. Resource pool Prod-VVol-Primary-Site is invalid. Get datastores on which VRPAs are deployed on. Get the datastores on which the specified VRPA is deployed on. Check enough space for dummy device on the resource pool. Resource pool Prod-VVol-Primary-Site is invalid. Thanks!