6.0

Place a Host in Maintenance Mode in the VMware Host Client
You place a host in maintenance mode when you need to service it, for example, to install more memory. A
host enters or leaves maintenance mode only as the result of a user request.
The host is in a state of Entering Maintenance Mode until all running virtual machines are powered o or
migrated to dierent hosts. You cannot power o virtual machines or migrate virtual machines to a host that
is entering or in maintenance mode.
To place a host in maintenance mode, all virtual machines that are running on the host must be powered o
or migrated to dierent hosts. If you aempt to place a host that has running virtual machines on it in
maintenance mode, DRS must power o or migrate the running virtual machines for the task to complete. If
a time out occurs before the virtual machines are powered o or migrated, an error message appears.
When all virtual machines on the host are inactive, the host's icon displays under maintenance and the
host's Summary panel indicates the new state. While in maintenance mode, the host does not allow you to
deploy or power on a virtual machine.
Prerequisites
Before you place a host in maintenance mode, power o all virtual machines that are running on that host or
migrate them to another host either manually or automatically by DRS.
Procedure
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Right-click the host and select Enter maintenance mode.
The host is in maintenance mode until you select Exit maintenance mode.
Managing Permissions in the VMware Host Client
For ESXi, permissions are dened as access roles that consist of the roles assigned to a user for dierent
objects such as a virtual machine or ESXi host. Permissions grant users the right to perform the activities
specied by the role on the object to which the role is assigned.
For example, to congure memory for the host, a user must be granted a role that includes the
Host..Memory  privilege. By assigning dierent roles to users for dierent
objects, you can control the tasks that users can perform by using the VMware Host Client.
When connecting directly to a host with the VMware Host Client, the root and vpxuser user accounts have
the same access rights as any user assigned the Administrator role on all objects.
All other users initially have no permissions on any object, which means the users cannot view or perform
tasks on these objects. A user with Administrator privileges must assign permissions to these users to allow
them to perform tasks.
Many tasks require permissions on more than one object. The following rules can help you determine which
roles to assign to users to allow particular tasks:
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Any task that consumes hard disk space, such as creating a virtual disk or taking a snapshot, requires
the Datastore.Allocate Space privilege on the target datastore and the privilege to perform the
operation itself.
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Each host and cluster has its own implicit resource pool that contains all the resources of that host or
cluster. Deploying a virtual machine directly to a host or cluster requires the Resource.Assign Virtual
Machine to Resource Pool privilege.
The list of privileges is the same for both ESXi and vCenter Server.
You can create roles and set permissions through a direct connection to the ESXi host.
vSphere Single Host Management - VMware Host Client
24 VMware, Inc.