VMware Cloud Director 10.6.x
VMware Cloud Director Availability 4.7.3
The issue happened due to the presence of the RT VMs created in the initial attempt.
When the site pairing was removed, these entries remained in the VCD database as stale records adding to the storage.
The stale RT VM entries need to be removed from the VCD side to reflect the correct utilization.
For assistance, contact technical support and note this Knowledge Article ID (405615) in the problem description. For more information, see How to Submit a Support Request.