Minimum requirements for the VMware vCenter Server 5.x Appliance

Foreknowledge : 

 If you are using the VMware vCenter Server Appliance, beginning with vSphere 5.x you can download vCenter Server as a virtual machine appliance. With the VMware vCenter Server Appliance, the necessary components are contained in a pre-configured virtual machine. This article outlines the minimum requirements and configurations for a successful implementation.

 For more information, see the vSphere Installation and Setup Guide. The documentation contains definitive information. If there is a discrepancy between the documentation and this article, assume that the documentation is correct.

Resolution

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The VMware vCenter Server Appliance can be deployed only on hosts that are running ESX/ESXi 4.x or later.

This table outlines the VMware vCenter Server Appliance requirements:

Component	Requirement
Disk storage on the host machine	At least 7 GB A maximum of 80 GB
Memory in the vCenter Server Appliance	Very small inventory (10 or fewer hosts, 100 or fewer virtual machines) – at least 4 GB Small inventory (10-100 hosts or 100-1000 virtual machines) – at least 8 GB Medium inventory (100-400 hosts or 1000-4000 virtual machines) – at least 13 GB Large inventory (more than 400 hosts or 4000 virtual machines) – at least 17 GB VMware vCenter Server Appliance 5.1 / 5.5 Medium inventory (100-400 hosts or 1000-4000 virtual machines) – at least 16 GB VMware vCenter Server Appliance 5.1 / 5.5 Large inventory (more than 400 hosts or 4000 virtual machines) – at least 24 GB

This table outlines the recommended JVM Heap settings for VMware vCenter Server Appliance vCenter Server Appliance Hardware:

vCenter Server Appliance Hardware	Tomcat	Query Service (QS)	Policy Based Storage Management (SPS)
Small inventory (1-100 hosts or 1-1000 virtual machines)	1 GB	2 GB	512 MB
Medium inventory (100-400 hosts or 1000-4000 virtual machines)	2 GB	4 GB	1 GB
Large inventory (more than 400 hosts or 4000 virtual machines)	3 GB	6 GB	2 GB
VMware vCenter Server Appliance 5.1 Large inventory (more than 400 hosts or 4000 virtual machines)	3 GB	12 GB	2 GB