Virtual SAN 2-node cluster configuration – pt2

vsan2nodeclusterconfiguration01

Virtual SAN is the solution VMware introduced to meet the needs of remote and branch offices at very cost effective pricing.

Despite the 25 VMs limit per site, the very interesting feature introduced with VSAN ROBO edition is the capability of running Virtual SAN on only 2 nodes with the use of a witness appliance (ESXi nested) that doesn’t require an additional license. 

vsan2nodeclusterconfiguration02

 

Blog series

Virtual SAN 2-node cluster setup for ROBO – pt1
Virtual SAN 2-node cluster configuration – pt2

 

Configure VSAN network

Select the host to enable VSAN and go to Manage > Networking > VMKernel adapters tab. Click Add host networking icon to setup the new VMKernel adapter.

vsan2nodeclusterconfiguration03

Select VMKernel Network Adapter option and click Next.

vsan2nodeclusterconfiguration04

In the Select an existing standard switch field, click Browse and select the vSwitch to use. Click OK to confirm then Next.

vsan2nodeclusterconfiguration05

Enter a Network label and specify the VLAN ID to use. Enable the Virtual SAN traffic service and click Next.

vsan2nodeclusterconfiguration06

Assign a static IPv4 address and a Subnet mask then click Next.

vsan2nodeclusterconfiguration07

Click Finish to save the configuration.

vsan2nodeclusterconfiguration08

Repeat same steps for the other host used for VSAN setup.

vsan2nodeclusterconfiguration09

 

Configure VSAN cluster

If your cluster is configured with vSphere HA, you can use Virtual SAN with a vSphere HA cluster only if the following conditions are met:

  • The cluster’s ESXi hosts all must be version 5.5 or later
  • The cluster must have a minimum of three ESXi hosts

If you have only two hosts, before configuring VSAN make sure vSphere HA is disabled.

vsan2nodeclusterconfiguration10

Select the cluster to configure and go to Manage > Settings > General tab. Click on Configure button.

vsan2nodeclusterconfiguration11

Set Add disk to storage field as Manual and choose Configure two host Virtual SAN cluster option. Click Next to continue.

vsan2nodeclusterconfiguration12

If the all the hosts in the cluster have a VMKernel adapter configured for VSAN traffic enabled, click Next.

vsan2nodeclusterconfiguration13

Select which disks should be claimed for cache in the VSAN cluster and click the Claim for cache tier icon.

vsan2nodeclusterconfiguration14

Select which disks should be claimed for capacity in the VSAN cluster and click the Claim for capacity tier icon.

vsan2nodeclusterconfiguration15

Take a look at the Total cache and capacity available in the VSAN cluster and click Next to continue.

vsan2nodeclusterconfiguration16

Select the Witness host previously configured and click Next.

vsan2nodeclusterconfiguration17

Select the Witness’ disks for cache and capacity tier then click Next.

vsan2nodeclusterconfiguration18

Click Finish to complete the configuration.

vsan2nodeclusterconfiguration19

When the configuration has been completed, the Virtual SAN is set as ON.

vsan2nodeclusterconfiguration20

Check Fault Domains configuration from Manage > Settings > Fault Domains & Stretched Cluster tab.

Fault Domains allow to maintain a full copy of the virtual machine data even when a rack fails since virtual machine components are deployed across the Fault Domains. In case of a single rack failure will not make the VM inaccessible.

vsan2nodeclusterconfiguration21

In the Monitor > Virtual SAN > Health tab you can check the VSAN status.

vsan2nodeclusterconfiguration22

The new vsanDatastore storage is now available in the storage area.

vsan2nodeclusterconfiguration23

When the configuration has been completed, vSphere HA can be enabled again.

vsan2nodeclusterconfiguration24

The installation of VSAN solution is pretty easy and cost-effective. There is no need to purchase expensive SANs anymore as well as expensive Support Contracts from storage vendors.

 signature

One Response

  1. Jase McCarty 11/11/2016

Leave a Reply