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Table Of Contents
The stateless caching solution is primarily intended for situations when several hosts boot
simultaneously. The locally cached image helps prevent a bottleneck that results if several
hundreds of hosts connect to the vSphere Auto Deploy server simultaneously. After the boot
operation is complete, hosts connect to vSphere Auto Deploy to complete the setup.
The stateful installs feature lets you provision hosts with the image profile over the network
without having to set up the PXE boot infrastructure.
n Introduction to Stateless Caching and Stateful Installs
You can use the System Cache Configuration host profile to provision hosts with vSphere
Auto Deploy stateless caching and stateful installs.
n Understanding Stateless Caching and Stateful Installs
When you want to use vSphere Auto Deploy with stateless caching or stateful installs, you
must set up a host profile, apply the host profile, and set the boot order.
Introduction to Stateless Caching and Stateful Installs
You can use the System Cache Configuration host profile to provision hosts with vSphere Auto
Deploy stateless caching and stateful installs.
Examples of Stateless Caching and Stateful Installs
Hosts provisioned with vSphere Auto Deploy cache the image (stateless caching)
Set up and apply a host profile for stateless caching. You can cache the image on a local disk,
a remote disk, or a USB drive. Continue provisioning this host with vSphere Auto Deploy. If
the vSphere Auto Deploy server becomes unavailable, for example because hundreds of hosts
attempt to access it simultaneously, the host boots from the cache. The host attempts to reach
the vSphere Auto Deploy server after the boot operation to complete configuration.
Hosts provisioned with vSphere Auto Deploy become stateful hosts
Set up and apply a host profile for stateful installs. When you provision a host with vSphere
Auto Deploy, the image is installed on the local disk, a remote disk, or a USB drive. For
subsequent boots, you boot from the disk. The host no longer uses vSphere Auto Deploy.
Preparation
To successfully use stateless caching or stateful installs, decide how to configure the system and
set the boot order.
VMware ESXi Installation and Setup
VMware, Inc. 167