Selecting the right VM disk type

When you create a virtual disk, you can specify disk properties, such as size, format, clustering features, and more. However, the most important property is the format.

The type of virtual disk used by your VM can have an effect on the I/O performance; thus, it plays a vital role in maintaining disk performance. The type of disks that are available today are:

• Thick provision eager zeroed
• Thick provision lazy zeroed
• Thin provision

You need to carefully evaluate the workload and the performance factors of each disk before you choose one.

Getting ready

To step through this recipe, you will need one or more running ESXi Servers, a vCenter Server, and vSphere Web Client. No other prerequisites are required.

How to do it...

When you create a disk inside a VM, you have the option to select the type of disk, as follows:

1. Open up vSphere Web Client and log in to the vCenter Server.
2. Select Hosts and Clusters on the Home screen.
3. Navigate to the ESXi host where you want to create...