When you deploy the vCenter Server appliance, the ESXi host or DRS cluster on which you deploy the appliance must meet minimum storage requirements. The required storage depends not only on the size of the vSphere environment and the storage size, but also on the disk provisioning mode.
Storage Requirements for the vCenter Server Appliance
The storage requirements are different for each vSphere environment size and depend on your database size requirements.
|Default Storage Size||Large Storage Size||X-Large Storage Size|
|Tiny environment (up to 10 hosts or 100 virtual machines)||415 GB||1490 GB||3245 GB|
|Small environment (up to 100 hosts or 1,000 virtual machines)||480 GB||1535 GB||3295 GB|
|Medium environment (up to 400 hosts or 4,000 virtual machine)||700 GB||1700 GB||3460 GB|
|Large environment (up to 1,000 hosts or 10,000 virtual machines)||1065 GB||1765 GB||3525 GB|
|X-Large environment (up to 2,500 hosts or 45,000 virtual machines)||1805 GB||1905 GB||3665 GB|