vSphere Prerequisites and Resource Requirements

Page last updated:

This topic describes the prerequisites and resource requirements for installing VMware Enterprise PKS on vSphere.

For prerequisites and resource requirements for installing Enterprise PKS on vSphere with NSX-T integration, see vSphere with NSX-T Version Requirements and Hardware Requirements for Enterprise PKS on vSphere with NSX-T.

Prerequisites

Before installing Enterprise PKS:

  1. Review the sections below and the instructions in Creating Dedicated Users and Roles for vSphere (Optional).

  2. Install and configure Ops Manager. To install Ops Manager, follow the instructions in Installing and Configuring Ops Manager on vSphere.

vSphere Version Requirements

For Enterprise PKS on vSphere version requirements, refer to the VMware Product Interoperability Matrices.

Resource Requirements

Installing Ops Manager and Enterprise PKS requires the following virtual machines (VMs):

VM CPU Memory (GB) Ephemeral Disk (GB)
BOSH Director 2 8 16
Ops Manager 1 8 160
PKS API 2 8 64
PKS Database 2 8 64

Storage Requirements for Large Numbers of Pods

If you expect the cluster workload to run a large number of pods continuously, then increase the size of persistent disk storage allocated to the PKS Database VM as follows:

Number of Pods Persistent Disk Requirements (GB)
1,000 pods 20
5,000 pods 100
10,000 pods 200
50,000 pods 1,000

Ephemeral VM Resources

Each Enterprise PKS deployment requires ephemeral VMs during installation and upgrades of Enterprise PKS. After you deploy Enterprise PKS, BOSH automatically deletes these VMs.

To enable Enterprise PKS to dynamically create the ephemeral VMs when needed, ensure that the following resources are available in your vSphere infrastructure before deploying Enterprise PKS:

Ephemeral VM VM Count CPU Cores Memory (GB) Ephemeral Disk (GB)
BOSH Compilation VMs 4 4 4 32

Kubernetes Cluster Resources

Each Kubernetes cluster provisioned through Enterprise PKS deploys the VMs listed below. If you deploy more than one Kubernetes cluster, you must scale your allocated resources appropriately.

VM VM Count CPU Cores Memory (GB) Ephemeral Disk (GB) Persistent Disk (GB)
master 1 or 3 2 4 8 5
worker 1 or more 2 4 8 50
errand (ephemeral) 1 1 1 8 none

Network Communication Requirements

For a complete list of network communication requirements for vSphere without NSX-T, see Firewall Ports and Protocols Requirements for vSphere without NSX-T.


Please send any feedback you have to pks-feedback@pivotal.io.