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)||463 GB||1538 GB||3293 GB|
|Small environment (up to 100 hosts or 1,000 virtual machines)||528 GB||1583 GB||3343 GB|
|Medium environment (up to 400 hosts or 4,000 virtual machine)||748 GB||1748 GB||3508 GB|
|Large environment (up to 1,000 hosts or 10,000 virtual machines)||1113 GB||1813 GB||3573 GB|
|X-Large environment (up to 2,000 hosts or 35,000 virtual machines)||1853 GB||1953 GB||3713 GB|