You size resources and storage for the vCenter Server Appliance to provide enough resources for accommodating the expected number of management virtual machines in the SDDC.

Table 1. Logical Specification for the vCenter Server Appliance
Attribute Specification
vCenter Server version 6.5 (vCenter Server Appliance)
Physical or virtual system Virtual (appliance)
Appliance Size Small (up to 100 hosts / 1,000 VMs)
Platform Services Controller External
Number of CPUs 4
Memory 16 GB
Disk Space 290 GB
Table 2. vCenter Server Appliance Sizing Design Decisions
Decision ID Design Decision Design Justification Design Implication
CSDDC-VI-VC-005 Deploy a vCenter Server Appliance of a small deployment size or larger. Based on the number of hosts and virtual machines in a consolidated cluster, a vCenter Server Appliance installed with the small size setting is sufficient. If the size of the environment changes, the vCenter Server Appliance size might need to be increased.