In a single-customer deployment, ESX hosts are owned and maintained within a single corporation and single datacenter. Host resources are not shared with outside users. One site administrator maintains the hosts, which are run on a number of virtual machines.

The single-customer deployment does not allow customer administrators, and the site administrator is solely responsible for maintaining the various virtual machines. The corporation staffs a set of system administrators who do not have accounts on the host and cannot access any of the ESX tools such as vCenter Server or command line shells for the host. These system administrators have access to virtual machines through the virtual machine console so that they can load software and perform other maintenance tasks inside the virtual machines.

Sharing for Components in a Single-Customer Deployment shows how you might handle sharing for the components that you use and configure for the host.

Sharing for Components in a Single-Customer Deployment

Function

Configuration

Comments

Service console shares the same physical network as the virtual machines?

No

Isolate the service console by configuring it on its own physical network.

Service console shares the same VLAN as the virtual machines?

No

Isolate the service console by configuring it on its own VLAN. No virtual machine or other system facility such as vMotion must use this VLAN.

Virtual machines share the same physical network?

Yes

Configure your virtual machines on the same physical network.

Network adapter sharing?

Partial

Isolate the service console by configuring it on its own virtual switch and virtual network adapter. No virtual machine or other system facility must use this switch or adapter.

You can configure your virtual machines on the same virtual switch and network adapter.

VMFS sharing?

Yes

All .vmdk files reside in the same VMFS partition.

Security level

High

Open ports for needed services like FTP on an individual basis. See Service Console Firewall Configuration for information on security levels.

Virtual machine memory overcommitment?

Yes

Configure the total memory for the virtual machines as greater than the total physical memory.

User Account Setup in a Single-Customer Deployment shows how you might set up user accounts for the host.

User Account Setup in a Single-Customer Deployment

User Category

Total Number of Accounts

Site administrators

1

Customer administrators

0

System administrators

0

Business users

0

User Access in a Single-Customer Deployment shows the level of access for each user.

User Access in a Single-Customer Deployment

Access Level

Site Administrator

System Administrator

Root access?

Yes

No

Service console access through SSH?

Yes

No

vCenter Server and vSphere Web Access?

Yes

No

Virtual machine creation and modification?

Yes

No

Virtual machine access through the console?

Yes

Yes