Specifications

Table 3‑3. Recommended JVM Heap Settings for vCenter Server
vCenter Server
Inventory
VMware VirtualCenter
Management Webservices
(Tomcat) Inventory Service
Profile-Driven
Storage Service
Small inventory (1-100
hosts or 1-1000 virtual
machines)
1GB 2GB 512MB
Medium inventory
(100-400 hosts or
1000-4000 virtual
machines)
2GB 4GB 1GB
Large inventory (More
than 400 hosts or 4000
virtual machines)
3GB 6GB 2GB
NOTE Installing vCenter Server on a network drive or USB flash drive is not supported.
For the hardware requirements of your database, see your database documentation. The database
requirements are in addition to the vCenter Server requirements if the database and vCenter Server run on
the same machine.
VMware vCenter Server Appliance Hardware Requirements and
Recommendations
IMPORTANT The embedded database is not configured to manage an inventory that contains more than 5
hosts and 50 virtual machines. If you use the embedded database with the vCenter Server Appliance,
exceeding these limits can cause numerous problems, including causing vCenter Server to stop responding.
Table 3‑4. Hardware Requirements for VMware vCenter Server Appliance
VMware vCenter Server Appliance Hardware Requirement
Disk storage on the host machine At least 7GB, and a maximum of 80GB
Memory in the VMware vCenter Server Appliance
n
Very small inventory (10 or fewer hosts, 100 or fewer
virtual machines): at least 4GB.
n
Small inventory (10-100 hosts or 100-1000 virtual
machines): at least 8GB.
n
Medium inventory (100-400 hosts or 1000-4000 virtual
machines): at least 13GB.
n
Large inventory (More than 400 hosts or 4000 virtual
machines): at least 17GB.
vSphere Upgrade
18 VMware, Inc.