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Proxmox vs. ESXI: Is Proxmox an alternative to ESXi?
Introduction: Proxmox vs VMware ESXi
Virtualization is a hypervisor software technology that allows one physical host to run many virtual machines as guest operating systems. It’s trendy for server consolidation.
The VMware solution has the top spot by market share. However, VMware is getting more expensive in maintenance fees. Management realizes costs are climbing practically every year. Is it still worth it?
Proxmox is a complete open-source server management platform for enterprise virtualization. It is an alternative to ESXI, running Linux with a straightforward, powerful user interface.
Both hypervisors have a bare-metal installer that installs on the physical hardware, including all necessary management tools.
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Proxmox vs ESXi is a hot topic in IT departments. What should I choose? In this article, I will try to answer this question or give you my view.
What Is a Hypervisor?
A hypervisor is a software that runs on top of the operating system, isolating it from the hardware and enabling multiple virtual machines to run concurrently on the same hardware.
A hypervisor is a virtual machine monitor that interfaces between the guest and host operating systems. A hypervisor provides the guest operating system with access to hardware resources and also manages the virtual machine’s memory by controlling its
What is VMware ESXi?
ESXi provides a hypervisor for server virtualization. Without running an operating system, ESXi runs on bare metal. It contains its Linux-based operating system. The primary purpose of ESXi is to provide a hardware abstraction layer between the guest OSes and the underlying hardware. This means that all guests are managed through a single interface, making administration easier. In addition, ESXi supports multiple platforms such as Intel processor X86 and X64, ARMv7, PowerPC, IA32e, SPARC, etc.
Vmware Vcenter Server is the central management point for all your hosts or ESXi server. It’s a web-based management interface.
VMware Vsphere is a set of tools that includes vCenter Server, vMotion, Storage vMotion, Fault Tolerance, High Availability, and much more. Vcenter Server makes it easy to manage all the tools and your hosts and virtual servers from a central location.
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Vsphere offers everything you need for perfect virtualization infrastructure. It’s available in different editions. Essential, Standard and Enterprise.
Features found with ESXi 7.0. Some features are only available in the Enterprise edition.
- High Availability (HA)
- online migration feature – Storage Vmotion for disk and Vmotion for processor
- Backup and Restore
- VM encryption
- Instant Clone
- Distributed Switch
- Server Profile
- Host Profile
- Guest tools
The current version is ESXi 8.0, always the latest version and build you find here
What is Proxmox VE?
Proxmox Virtual Environment (VE) is a Debian GNU/Linux distribution that hosts virtualized environments. Proxmox uses KVM instead of Xen or other proprietary solutions. It was created because of the lack of support for KVM in Ubuntu 10.04 LTS. In addition, it is a lightweight alternative to other virtualization platforms. Deployed from scratch in less than ten minutes and has an easy-to-use web interface for managing the host system and all of its guests, further offering Linux Containers (LXC) as “Proxmox VE Clones” to create containers. Proxmox can be used as a single virtualization platform for small and large enterprises, educational institutes, and home users with distributed IT projects.
Developed by Proxmox Server Solutions in Austria under the Internet Foundation of Austria and is released under the GNU General Public License. You can run multiple operating systems (OS) and virtual machines with VMware ESXi. However, it is not as customizable as Proxmox.
When deployed, the resource manager, Proxmox VE HA Manager, monitors all VMs and containers on the whole cluster and automatically gets into action if one fails. There is also an integrated live/online migration feature. This enables the movement of VMs from one Proxmox VE cluster node to another without any downtime.
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Several features make it a viable alternative to VMware ESXi.
Here are some features:
- Server virtualization
- Kernel-based Virtual machine (KVM)
- Container-based Linux virtual machine (LXRC
- web-based management interface
- Cluster file system
- Live online migration
- Command-line interface (CLI)
- REST API
- High Availability cluster (HA)
- Bridged networking
- lots of storage types like ceph, ZFS, NFS, CIFs, iSCSI, and much more
- Backup and Restore
- Distributed Firewall
- IPv4 and IPv6 support
- more features here
The current version is 7.3.
What are Proxmox VE advantages vs. ESXi?
Why choose Proxmox VE instead of Vmware ESXi?
If you’re already familiar with VMware, you may wonder the difference between them. Well, here are some key differences between Proxmox and VMware ESXi.
- Open Source – Proxmox VE is open-source software meaning anyone can download the latest version and modify it however they see fit. There are even third-party companies offering commercial services. VMware requires annual subscription fees depending on how large your environment is.
- Security – Proxmox uses Linux-based operating systems, so it’s much more secure than traditional hypervisors such as ESXi. As a bonus, since all VMs run within containers, this also means that any malicious code running inside one VM will not be able to affect others.
- Availability – Proxmox VE offers built-in High Availability features while ESXi doesn’t (additional cost). Also, unlike ESXi, Proxmox VE lets administrators configure multiple nodes simultaneously. So if one goes offline, another automatically steps in.
- Support – The community behind Proxmox has been around for years now, so you’ll have plenty of resources at hand should you ever encounter problems.
- Customization – One of the most significant advantages of Proxmox is that it gives admins complete control over the entire system. They can customize almost every aspect, including hardware, OS, networking, storage, etc. All these options make it easier for Software development to build exactly what you need rather than shoehorn something into a prebuilt image.
A perfect barebone ESXi host
Are you looking for an inexpensive ESXi host for a small environment or homelab? You need to look no further than the Supermicro barebone E300-9D. It’s a beautiful small computer that offers all the features you need for an ESXi host. It runs ESXi 8.0 right out of the box.
License options for Proxmox and VMware Vsphere
Proxmox VE is open-source software. Everyone can download and use the product for free. Purchasing support gives licensees access to the enterprise repository with automatic periodic updates and support. The highest licensing tier includes support tickets with a 2-hour response time. In addition, support includes technical assistance, installation help, troubleshooting, and training.
Interested in a Proxmox subscription?
However, ESXi is only available in a free trial version, after which subscriptions are required. Standard and Enterprise Plus are the two paid licenses. There is another edition, Essential, with limited features available for up to three hosts.
There are three different levels of support available from VMware. These include standard, professional, or advanced. Each tier comes with its benefits. Users get basic phone support, email responses, and online forums with standard support. Professional help adds live chat and ticketing capabilities. Advanced support allows customers 24/7 telephone support, remote desktop sessions, and video conferencing.
A good articel about VMware Editions
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My Thoughts on the product features and what to choose
The decision to choose Proxmox or VMware ESXI is not a one-size-fits-all decision. What is most important is your organization’s financial resources. Considering how your choices will impact your organization, with the two significant players differentiating themselves in features, pricing, and support options is essential.
VMware ESXi is a top-rated virtualization platform that provides enhanced performance and usability. If your company can manage getting locked into VMware, you may benefit from increased performance and usability. However, Proxmox is a cheaper alternative offering comparable features to VMware.
Suppose you have more experience or internal resources than money. In that case, Proxmox may be a better option for your company because the features and pricing of Proxmox are more attractive than VMware.
In most cases, Vmware Vsphere is the better choice with its enterprise features. VMware is a big company, the software suite is well documented, and you find a vast knowledge base online. ESXi is a very popular virtualization software. In addition, Veeam (third-party tools) provides a rich and solid backup infrastructure for Veeam.
See my latest article on migrating a VM from VMware to Proxmox.
Want to build VMware ESXi homelab?
Is Proxmox better than VMware?
Regarding virtualization, Proxmox and VMware offer different features and benefits. Proxmox is open source, whereas VMware products are proprietary. Proxmox also has much simpler hardware requirements, which makes it more accessible for many organizations. Additionally, it has a lower learning curve due to its use of the standard Debian Linux. On the other hand, VMware has more features than Proxmox, though Proxmox’s features are often more helpful. Whether Proxmox or VMware is better depends on an organization’s needs, financial resources, and experience.
What is the best hypervisor for a homelab in 2023
Proxmox also markets strongly in this sub, so the best answer will likely be that one. As long as you don’t care about learning an enterprise hypervisor and it’s primarily used for home labs, it’s okay. Since it is essentially just a frontend for Debian with many virtualization packages installed, it is messy. You might need to SSH into the host and edit config files in Linux to adjust options that aren’t present in the web interface.
How to Get Started with Proxmox
To make the transition to Proxmox (and KVM in general) more effortless, it is advisable to begin with Linux basics and learn LVM (a thorough understanding of LVM is vital). The web UI is generally intuitive and easy to use.
What is a type 1 hypervisor?
Directly on the host hardware. The operating system allows bare metal servers (hosts or nodes) to be managed individually with one or more virtual machines.
What are the limitations of free ESXi
The free version of ESXi has several limitations that should be considered when deciding whether to use it. The most current version of ESXi (8.0) has no hardware limitations other than a maximum of two physical CPUs and eight vCPUs per VM. The free version does not have access to vCenter Server for managing virtual machines, vStorage API for backups from third-party solutions, or clustering capabilities.
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Little bit biased comparison… ESXi is also Linux-based, so I don’t see why Proxmox should be inherently more secure. Every system need to be patched. The last security flaw have been discovered on ESXi but it don’t mean that Proxmox will never have security issues. Especially if they come close to ESXi in terms of market share and when they will start to have old systems left unpatched by some user like it happened with ESXi. Proxmox is actuelly too small and too new to have this kind of grown-up concerns. From my own experiences ESXi virtual networking is much more reliable and easy to manage. You can easyly isolate or route virtual networks with virtual switches. It works well out of the box for both hypervisor and VMs. On the other hand Proxmox needs manual tunning in command line to work well in company networks as it not showing it’s MAC address by default but unique identifiers that are totally irrelevant for DHCP/DNS servers and networking devices. Same for VMs by default. I don’t see why using a basic Debian in CLI is more user friendly and require less learning than ESXi well polished and complete Web UI. You presume that everybody have already skills in Debian administration?
Many thank for your comments and expression of your views. A little debate.