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Table Of Contents
n DRS cluster host. Virtual machines that were successfully migrated to other hosts stay
there. Virtual machines for which no host had enough resources are registered to the
rebooted host.
If vCenter Server is unavailable, the host contacts the vSphere Auto Deploy server and is
provisioned with an image profile. The host continues to contact the vSphere Auto Deploy server
until vSphere Auto Deploy reconnects to the vCenter Server.
vSphere Auto Deploy cannot set up vSphere distributed switches if vCenter Server is unavailable,
and virtual machines are assigned to hosts only if they participate in an vSphere HA cluster. Until
the host is reconnected to vCenter Server and the host profile is applied, the switch cannot be
created. Because the host is in maintenance mode, virtual machines cannot start. See Reprovision
Hosts with Simple Reboot Operations.
Any hosts that are set up to require user input are placed in maintenance mode. See Update the
Host Customization in the vSphere Client.
Subsequent Boots With Updates
You can change the image profile, host profile, vCenter Server location, or script bundle for hosts.
The process includes changing rules and testing and repairing the host's rule compliance.
1 The administrator uses the Copy-DeployRule PowerCLI cmdlet to copy and edit one or more
rules and updates the rule set. See Overview of the vSphere Auto Deploy Process by Using
PowerCLI for an example.
2 The administrator runs the Test-DeployRulesetCompliance cmdlet to check whether each
host is using the information that the current rule set specifies.
3 The host returns a PowerCLI object that encapsulates compliance information.
4 The administrator runs the Repair-DeployRulesetCompliance cmdlet to update the image
profile, host profile, or vCenter Server location the vCenter Server system stores for each host.
5 When the host reboots, it uses the updated image profile, host profile, vCenter Server
location, or script bundle for the host.
If the host profile is set up to request user input, the host is placed in maintenance mode.
Follow the steps in Update the Host Customization in the vSphere Client.
See Test and Repair Rule Compliance .
VMware ESXi Installation and Setup
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