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Table Of Contents
You can deploy ESXi using either image profile.
n If the network boot time is of no concern, and your environment has sufficient extra memory
and storage overhead, use the image that includes VMware Tools.
n If you find the network boot time too slow when using the standard image, or if you want to
save some space on the hosts, you can use the image profile that does not include VMware
Tools, and place the VMware Tools binaries on shared storage. See, Provision ESXi Host by
Using an Image Profile Without VMware Tools.
vSphere Auto Deploy Load Management Best Practices
Simultaneously booting large numbers of hosts places a significant load on the vSphere Auto
Deploy server. Because vSphere Auto Deploy is a Web server at its core, you can use existing
Web server scaling technologies to help distribute the load. For example, one or more caching
reverse proxy servers can be used with vSphere Auto Deploy. The reverse proxies serve up
the static files that make up the majority of an ESXi boot image. Configure the reverse proxy
to cache static content and pass all requests through to the vSphere Auto Deploy server. For
more information, watch the video "Using Reverse Web Proxy Servers for vSphere Auto Deploy
Scalability":
(Using Reverse Web Proxy Servers for vSphere Auto Deploy Scalability )
Use multiple TFTP servers to point to different proxy servers. Use one TFTP server for each
reverse proxy server. After that, set up the DHCP server to send different hosts to different TFTP
servers.
When you boot the hosts, the DHCP server redirects them to different TFTP servers. Each TFTP
server redirects hosts to a different server, either the vSphere Auto Deploy server or a reverse
proxy server, significantly reducing the load on the vSphere Auto Deploy server.
After a massive power outage, bring up the hosts on a per-cluster basis. If you bring
multiple clusters online simultaneously, the vSphere Auto Deploy server might experience CPU
bottlenecks. All hosts might come up after a delay. The bottleneck is less severe if you set up the
reverse proxy.
vSphere Auto Deploy Logging and Troubleshooting Best Practices
To resolve problems that you encounter with vSphere Auto Deploy, use the vSphere Auto
Deploy logging information from the vSphere Client and set up your environment to send logging
information and core dumps to remote hosts.
vSphere Auto Deploy Logs
Download the vSphere Auto Deploy logs by going to the vSphere Auto Deploy page in the
vSphere Client. See, Download vSphere Auto Deploy Logs.
Setting Up Syslog
Set up a remote syslog server. See Streaming Events to a Remote Syslog Server for syslog
server configuration information. Configure the first host you boot to use the remote syslog
VMware ESXi Installation and Setup
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