Different Types of VMware vSphere and vCenter Server Licenses

What is VMware License

VMware license keys are distributed when you purchase VMware products, and these keys allow activation and usage for a set number of processors or virtual machines (VMs). VMware vSphere is a virtualization suite of VMware. It includes 2 core components, VMware ESXi and vCenter Server.

This article will provide you with a quick guide of general types of VMware licenses.

Types of VMware licenses

VMware vSphere provides a centralized license management system that you can use to manage licenses for its products. ESXi hosts, vCenter Server, vSAN clusters, and Supervisor Clusters are licensed differently.

To apply their licensing models correctly, you must understand how the associated assets consume the license capacity. In this part, I will present difference licensing for its core components, ESXi hosts and vCenter Server.

Licensing for ESXi hosts

Type-1 hypervisor - VMware ESXi hosts are licensed with vSphere licenses, and vSphere is licensed on a per-processor basis, without imposing any restrictions on the number of virtual machines, physical cores, or the amount of physical RAM. Each vSphere license has a certain capacity that you can use to license multiple physical CPUs on ESXi hosts. To install vSphere in a virtual environment, at least one license key should be assigned to each physical processor (CPU).

Starting with vSphere 7.0, one CPU license covers one CPU with up to 32 cores. If а CPU has more than 32 cores, you need additional CPU licenses.

When you assign a vSphere license to a host, the amount of capacity consumed is determined by the number of physical CPUs on the host and the number of cores in each physical CPU.

To license an ESXi host, you must assign it a vSphere license that meets the following prerequisites:

• The license must have sufficient capacity to license all physical CPUs on the host.
• The license must support all the features that the host uses. For example, if the host is associated with a vSphere Distributed Switch, the license that you assign must support the vSphere Distributed Switch feature.

If you attempt to assign a license that has insufficient capacity or does not support the features that the host uses, the license assignment fails.

Licensing for vCenter Server

vCenter Server systems are licensed with vCenter Server licenses that have per-instance capacity. To license a vCenter Server system, you need a vCenter Server license that has the capacity for at least one instance.

There are three vCenter license categories; Standard, Foundation, and Essentials. Compare VMware essentials plus and standard, vCenter Server Essentials licensing is included with a vSphere Essentials Kit, while vCenter Server licenses for Standard or Foundation are sold separately from vSphere licensing.

▶ vCenter Server Foundation

vCenter Server Foundation is sold as a separate license and only supports managing up to 4 vSphere ESXi hosts. It is best suited for environments where there will be no more than 4 vSphere ESXi hosts to manage and no requirement of some of the business continuity features.

Although it still provides the basic management necessary for smaller vSphere environments, this version of vCenter Server is limited in some features when compared to other versions.

For example, vCenter Server Foundation does not come with vRealize Orchestrator, vCenter Server High Availability (VCHA), vCenter Server File-Based Backup and Restore, and does not support Enhanced Linked Mode (ELM).

▶ vCenter Server Essentials

The vCenter Server version included with vSphere Essentials and Essentials Plus is called “vCenter Server for Essentials”. vCenter Server for Essentials is similar to Foundation in terms of its feature limitations.

When bundled with vSphere Essentials, vCenter Server for Essentials allows for management of up to 3 vSphere ESXi hosts, with up to 2 physical CPUs each. There is no support for vMotion or vSphere High Availability with vSphere Essentials. The creation of datacenters, clusters, etc. are available, but migrations to other hosts would require a “cold migration” or powered off VM prior to migrating.

However, the vCenter Server for Essentials that comes with vSphere Essentials Plus, allows for business continuity features such as, vSphere High Availability (HA) and vMotion. vSphere Essentials Plus also unlocks cross switch vMotion, vSphere Replication, and optional access to VSAN.

▶ vCenter Server Standard

vCenter Server Standard is also sold separately from vSphere licensing. It is the version containing all available vCenter Server features. Differs from Foundation, it can manage up to 2000 vSphere ESXi hosts.

This version of vCenter Server also brings the ability to leverage vRealize Orchestrator for automating key tasks, allows for Enhanced Linked Mode (ELM), vCenter Server High Availability (VCHA), vCenter Server File-Based Backup and Restore, as well as the vCenter Server Migration Tool (included on the ISO for all vCenter Server versions).

vCenter Server Standard is best suited for vSphere environments that have many vSphere hosts to manage or those looking to scale out their virtual infrastructure or take full advantage of a rich feature set that streamlines monitoring, orchestration, and provisioning of virtual machines.

Flexible licenses for protecting VMs in VMware ESXi

VMware licenses are critical to ensuring that your infrastructure remains compliant and continues to run smoothly. Likewise, choosing the proper software is the foundation for ensuring consistency and data security for your organization.

AOMEI Cyber Backup is a dedicated VMware backup software to protect virtual machine data. It offers flexible licenses such as Perpetual vs. Subscription Licensing for both Free ESXi and Licensed ESXi. The right choice depends on your budget and long-term plans.

AOMEI Cyber Backup offers you the following benefits.

✦ Agentless Backup: Creating complete and independent image-level virtual machine backup for VMware ESXi and Hyper-V VMs.
✦ Fast Disaster Recovery: Restoring the entire VMware VM to a usable state quickly without re-creating and configuration a new VM.
✦ Multiple Storage Destinations: Backup data to different destinations, such as local or network share.
✦ Automated Execution: Scheduling backup to automate virtual machine protection.
✦ Role Assignment: Allowing one administrator to create sub-accounts withdifferent permissions.

AOMEI Cyber Backup simplifies the process of backing up VMs into 3 simple steps. You can click the following button to download and try the trial version.

*You can choose to install this VM backup software on either Windows or Linux system.

Summary

To give IT organizations flexible deployment and licensing options, VMware has been adjusting its licenses, editions and features over the years. This article covers 2 core types of VMware licenses, licensing of ESXi hosts, and licensing of vCenter Server.

After acquiring licenses on demand, you can create and run virtual machines on ESXi. But please always remember to backup VMware ESXi VMs to ensure the data security. This way you can use VMs for all kinds of operations without worry, even if it's risky.