VMware Cloud on AWS provides storage in the form of two vSAN datastores available to the hosts in each SDDC cluster: workloadDatastore, managed by the Cloud Administrator, and vsanDatastore, managed by VMware.
The workloadDatastore provides storage for your workload VMs, templates, ISO images, and any other files you choose to upload to your SDDC. You have full permission to browse this datastore, create folders, upload files, delete files, and perform all other operations needed to consume this storage.
The datastores in your SDDC are assigned the default VM storage policy by default. You can define additional storage policies and assign them to either datastore. For more information on vSAN storage policies, see Using vSAN Policies.
Currently, an issue causes the Storage Compatibility page of the Create VM Storage Policy wizard to report double the actual storage capacity that is available. The vsanDatastore and workloadDatastore are backed by the same storage, but the capacity for each is reported separately, making it appear as though there is twice as much storage.
The vsanDatastore provides storage for the management VMs in your SDDC, such as vCenter Server, NSX controllers, and so on.
The management and troubleshooting of the vSAN storage in your SDDC is handled by VMware. For this reason, you can't edit the vSAN cluster settings or monitor the vSAN cluster. You also do not have permission to browse this datastore, upload files to it, or delete files from it.