The first step is to download the IOInsight software:

1. Go to .
2. From the main page, read the license, then download the ZIP file. Unzip the file.
3. Log in to vSphere Web Client and go to the Hosts and Clusters view.
4. Right-click on your cluster and select Deploy OVF Template....
5. In the Deploy OVF Template wizard, select the .ova file you downloaded. Click on Next.
6. Enter a name for the appliance and select a datacenter. Click on Next.
7. Select a host or cluster. Click on Next.
8. Review the details. Click on Next.
9. Select the storage location. Click on Next.
10. Select the destination network. Click on Next.
11. Review the settings and click on Finish.
12. Once the VM has been created, power it on.

Now that the IOInsight appliance is created and running, log in and run a test:

1. Click on the IOInsight VM in vSphere Web Client, then go to the Summary tab. Find the IP address for the appliance, then browse to https://<VM_IP> using Chrome or Safari:

2. Enter the hostname or IP of your vCenter Server and login credentials. Click on Login.
3. On the left-hand side, you will see the hosts attached to vCenter. Click on the + next to a host that contains the VM you want to analyze and enter the root password.
4. This will show the VMs running on that host. Expand the VM you want to analyze, then select the drive(s) you want to analyze.
5. It is recommended that you select eight or less VMDK files to reduce overhead.
6. On the right-hand side of the web page, enter a name for the test and select a duration.

7. Select Basic I/O Analyzer, then click on Start. This will take you to the results page. The screen will show the graphs after a few seconds:

On this particular VM, I was running Iometer with a 32 k test with 50 percent reads. We can see that IOInsight correctly identified the Read/Write ratio and I/O Size Distribution.