The VSA cluster network requires a number of static IP addresses. Depending on the number of hosts in the cluster and whether you choose to use DHCP for the vSphere feature network, the number of required static IP addresses varies.

vCenter Server and VSA Manager do not need to be in the same subnet as VSA clusters. Members of each VSA cluster, including the VSA cluster service for a 2-member configuration, need to be in the same subnet.

The following table shows examples and the total number of static IP address that you need for various VSA cluster configurations.

Note:

For a 2-member VSA cluster with a simple configuration, you do not need an extra static IP for the VSA cluster service. You can use the IP address of vCenter Server as the IP for the VSA cluster service.

Table 1. Examples of Static IP Addresses for Different VSA Cluster Configurations

VSA Cluster Component

2-Member Cluster Without DHCP

2-Member Cluster With DHCP

3-Member Cluster Without DHCP

3-Member Cluster With DHCP

Number of static IP addresses in the same subnet

11

9

14

11

Number of IP addresses in a private subnet for the back-end network

2

2

3

3

vCenter Server IP address

10.15.20.100

10.15.20.100

10.15.20.100

10.15.20.100

ESXi host 1 IP address

10.15.20.101

10.15.20.101

10.15.20.101

10.15.20.101

ESXi host 2 IP address

10.15.20.102

10.15.20.102

10.15.20.102

10.15.20.102

ESXi host 3 IP address

N/A

N/A

10.15.20.103

10.15.20.103

VSA cluster IP address

10.15.20.103

10.15.20.103

10.15.20.104

10.15.20.104

VSA cluster service IP address

10.15.20.104

10.15.20.104

N/A

N/A

Management IP address for VSA 1

10.15.20.105

10.15.20.105

10.15.20.105

10.15.20.105

Datastore IP address for VSA 1

10.15.20.106

10.15.20.106

10.15.20.106

10.15.20.106

Back-end IP address for VSA 1

192.168.0.1

192.168.0.1

192.168.0.1

192.168.0.1

vSphere feature IP address for ESXi host 1

10.15.20.107

10.15.20.201, dynamically assigned IP address

Note:

DHCP assigns an IP address according to the range of IP addresses assigned to the DHCP server.

10.15.20.107

10.15.20.201, dynamically assigned IP address

Note:

DHCP assigns an IP address according to the range of IP addresses assigned to the DHCP server.

Management IP address for VSA 2

10.15.20.108

10.15.20.107

10.15.20.108

10.15.20.107

Datastore IP address for VSA 2

10.15.20.109

10.15.20.108

10.15.20.109

10.15.20.108

Back-end IP address for VSA 2

192.168.0.2

192.168.0.2

192.168.0.2

192.168.0.2

vSphere feature IP address for ESXi host 2

10.15.20.110

10.15.20.202, dynamically assigned IP address

Note:

DHCP assigns an IP address according to the range of IP addresses assigned to the DHCP server.

10.15.20.110

10.15.20.202, dynamically assigned IP address

Note:

DHCP assigns an IP address according to the range of IP addresses assigned to the DHCP server.

Management IP address for VSA 3

N/A

N/A

10.15.20.111

10.15.20.109

Datastore IP address for VSA 3

N/A

N/A

10.15.20.112

10.15.20.110

Back-end IP address for VSA 3

N/A

N/A

192.168.0.3

192.168.0.3

vSphere feature IP address for ESXi host 3

N/A

N/A

10.15.20.113

10.15.20.203, dynamically assigned IP address

Note:

DHCP assigns an IP address according to the range of IP addresses assigned to the DHCP server.