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VMware ESXi

VMware ESXi

Overview

What is VMware ESXi?

A bare-metal hypervisor that installs directly onto a physical server. With direct access to and control of underlying resources, VMware ESXi partitions hardware to consolidate applications and cut costs.

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Recent Reviews

TrustRadius Insights

Powerful Tool for Managing VMs: Users consistently praise VMware ESXi as a powerful tool for managing a large number of virtual machines, …
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VMware ESXI

8 out of 10
April 07, 2022
VMware Esxi is very good product. Which helps people to virtualize the environment or data center. I am using Exsi for last 5 years. …
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A class above the rest

10 out of 10
April 04, 2022
Incentivized
We use ESXi in our organization for our virtualized workloads. ESXi provides a solution for growing organizations that have way too much …
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Awards

Products that are considered exceptional by their customers based on a variety of criteria win TrustRadius awards. Learn more about the types of TrustRadius awards to make the best purchase decision. More about TrustRadius Awards

Popular Features

View all 5 features
  • Live virtual machine migration (115)
    9.3
    93%
  • Management console (127)
    8.8
    88%
  • Virtual machine automated provisioning (115)
    8.5
    85%
  • Hypervisor-level security (116)
    8.3
    83%

Reviewer Pros & Cons

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Pricing

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N/A
Unavailable

What is VMware ESXi?

A bare-metal hypervisor that installs directly onto a physical server. With direct access to and control of underlying resources, VMware ESXi partitions hardware to consolidate applications and cut costs.

Entry-level set up fee?

  • No setup fee

Offerings

  • Free Trial
  • Free/Freemium Version
  • Premium Consulting/Integration Services

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What is VMware vSphere?

An enterprise workload platform, vSphere is used to improve the performance for a data center. It is used to boost operational efficiency, supercharge workload performance, and accelerate innovation.

Sorry, this product's description is unavailable

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Product Demos

VMware ESXi 5.1 Install & Configure In Oracle Virtual Box

YouTube
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Features

Server Virtualization

Server virtualization allows multiple operating systems to be run completely independently on a single server

8.7
Avg 8.3
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Product Details

What is VMware ESXi?

A bare-metal hypervisor that installs directly onto a physical server. With direct access to and control of underlying resources, VMware ESXi partitions hardware to consolidate applications and cut costs.

ESXi is used to:

  • Consolidate hardware for higher capacity utilization.
  • Increase performance for a competitive edge.
  • Streamline IT administration through centralized management.
  • Reduce CapEx and OpEx.
  • Minimize hardware resources needed to run the hypervisor, boosting efficiency.

VMware ESXi Integrations

VMware ESXi Technical Details

Deployment TypesSoftware as a Service (SaaS), Cloud, or Web-Based
Operating SystemsUnspecified
Mobile ApplicationNo

Frequently Asked Questions

A bare-metal hypervisor that installs directly onto a physical server. With direct access to and control of underlying resources, VMware ESXi partitions hardware to consolidate applications and cut costs.

Reviewers rate Live virtual machine migration highest, with a score of 9.3.

The most common users of VMware ESXi are from Mid-sized Companies (51-1,000 employees).
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Comparisons

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Reviews and Ratings

(806)

Community Insights

TrustRadius Insights are summaries of user sentiment data from TrustRadius reviews and, when necessary, 3rd-party data sources. Have feedback on this content? Let us know!

Powerful Tool for Managing VMs: Users consistently praise VMware ESXi as a powerful tool for managing a large number of virtual machines, with easy management of individual VM settings and configurations. Several reviewers have highlighted this aspect, emphasizing how it simplifies their virtualization workflows and enhances overall efficiency.

Cost Reduction Benefits: Many users appreciate the cost reduction benefits offered by VMware ESXi. It minimizes the need for physical servers and reduces storage footprint, resulting in electricity savings. This advantage has been mentioned by a significant number of reviewers, highlighting the financial value that VMware ESXi brings to their organizations.

Support for Various Operating Systems: The support for various operating systems, including Windows and Unix, is considered a significant advantage by users. This feature enables them to host a wide range of applications on VMware ESXi. Multiple reviewers have specifically mentioned this pro, appreciating the flexibility it provides in terms of application deployment and compatibility.

Confusing User Interface: Many users have expressed frustration with the confusing and non-intuitive user interface of VMware ESXi. This has made it challenging for them to perform tasks efficiently, causing unnecessary delays and difficulties in managing their virtual environments.

Stability Issues: Several users have encountered stability issues with VMware ESXi's hypervisor. These issues have resulted in instances of corruption, leading to the need for reinstallations. The instability not only disrupts operations but also poses potential risks to data integrity and system reliability.

High Pricing and Complexity: The pricing of VMware products is often considered a barrier, particularly for smaller businesses. Many users find the deployment process complex and excessive for their needs, requiring significant time and resources to set up properly. This can be overwhelming, especially for organizations with limited IT expertise or budget constraints.

Attribute Ratings

Reviews

(1-15 of 15)
Companies can't remove reviews or game the system. Here's why
Richard Potts | TrustRadius Reviewer
Score 9 out of 10
Vetted Review
Verified User
Incentivized
We use ESXi within all of our Production, Development, & Testing environments to manage and run critical workloads that the company leverages for revenue generating applications as well as day to day IT infrastructure systems. ESXi is our management center for all of these systems and allows us to modify our virtual environment as needed.
  • Ease of use
  • Extremely intuitive
  • Easy to manage
  • Upgrade procedures could be outlined a bit better
  • Documentation could be improved to show specific images of tasks
  • Network integration and interfacing could be easier to navigate
ESXi is very well suited for managing and running small to enterprise sized workloads and allows for detailed visibility and management of your workloads within a single view. ESXi has a very low learning curve and allows administrators to ramp up quickly on how to properly and safely manage and deploy virtual environments.
Score 10 out of 10
Vetted Review
Verified User
Incentivized
We virtualized all servers except for our DB servers. Virtualizing 25 servers saves us on hardware, heating, cooling costs. And allows us to have them be redundant without the extra expense of doubling the hardware and the complexity with that. Virtualizing allows us to add more capacity quickly without increasing our footprint.
  • Consolidation
  • Redundancy
  • Stability
  • Improve simplicity.
  • Improve documentation.
  • Improve updates.
Pretty much any scenario except maybe with heavy DB requirements. But VMware ESXi fits almost all scenarios and highly recommend using it everywhere possible for all sizes of environments. It is a small footprint and manages any size of the environment. I have used it for 5 servers up to hundreds of VM's.
Wayne Ragusa | TrustRadius Reviewer
Score 10 out of 10
Vetted Review
Verified User
Incentivized
We use VMWare ESXi as the virtualization platform for our entire production environment. It allows us to design and rapidly deploy environments that are flexible, redundant, and efficient. We have used VMware ESXi for two years and are quite happy with the product. It is essential to everything that we do.
  • Ease of Access to all of my Virtual servers.
  • Great performance visibility.
  • Easy to Grow at a moment's notice.
  • Complexity - if you're not familiar with the product there is a learning curve.
  • VMware ESXi could find a way to boot faster.
We were able to shrink our server footprint while growing our company.

Small environments of less than 3 or 4 servers might not need VMware ESXi. This is due to its higher ROI for them.
Tim Enders | TrustRadius Reviewer
Score 10 out of 10
Vetted Review
Verified User
Incentivized
We use VMWare ESXi as the virtualization platform for our entire production environment across the University. This includes all on-premises production, test, and development servers, as well as our remote application delivery and VDI environments. It allows us to design and rapidly deploy environments that are flexible, redundant, and efficient. We have used VMware ESXi for over ten years and are quite happy with the product. It is essential to everything that we do.
  • Virtualization - it allows you to take full advantage of your hardware investments
  • Flexibility - it allows you to run services across disparate hardware types
  • Scalability - it allows you to expand and deploy new services rapidly
  • Complexity - if you're not familiar with the product there is a learning curve.
  • It does require other licensed VMWare products (vCenter Server, etc.) for full functionality.
VMware ESXi is one of the two or three best products I've used in my career. It revolutionized IT infrastructure when it was released, and it continues to be an essential underpinning to our entire environment now. It is the segment leader for on-premises server virtualization. It does carry some significant licensing costs, but we have found that those easily pay for themselves over time for an institution of our size.
Score 9 out of 10
Vetted Review
Verified User
Incentivized
My company uses ESXi as the go-to host hypervisor platform of choice when deploying virtual hosts at all of the plants and offices in our network. We use at least one ESXi host at every plant/office and at some sites, we have several.

ESXi's purpose is to act as a host platform for creating, running and managing virtual machines of various types, i.e. servers, user endpoints, appliances, web servers, SQL servers, etc. It's similar to Hyper-V (the Microsoft-branded competition for ESXi) but in my opinion, it has more and better features, overall, although the learning curve for ESXi is both steeper and longer for system admins than most other hypervisors.

Why do we use it? ESXi enables us to host many virtual servers and other endpoints on one physical host machine. This saves on electricity, space, heating, and cooling and improves ease of management of the hosted devices for everything from rebooting them to backing them up to restoring them.

Short answer? For small, medium or large enterprises, ESXi is (still) the best choice for hosting virtual machines. It really doesn't have much legitimate, serious competition in the world of hypervisors.
  • ESXi makes management of hosted machines easy. Everything is in one place. If you have a vCenter (which costs extra) to manage all your ESXi hosts, then everything is truly in one place and there is no need to hop around from management tool to management tool. Al the virtual machines' hardware settings, OS information, storage volume information, backup information, even a remote console just like a KVM ... all of it is in one place.
  • ESXi balances workloads well when using vCenter. Behind the scenes, the vCenter allows an ESXi host to "talk to" other ESXi hosts and when one VM has resources usage that gets past a certain threshold, it can move virtual machines around to balance workloads, even while the machines are running and service users. It's completely invisible to the users, who don't experience latency or any kind of interruptions when their VM is being moved.
  • The vSphere / vCenter GUI is complex. This is because there is just a crap-top of stuff that ESXi manages, so there is frankly a crap-top of necessary stuff that you have been able to manage in the user interfaces. The learning curve is a little steep. Just because it does a lot of things.
  • Live (powered on) ESXi snapshots of VMs still don't act as SQL backups very well. Snapshots can't backup SQL reliably because of the architecture of SQL and how it interacts with the live resources running on the VM. This is one of the many reasons why taking a snapshot works better when the VM is powered off. This is also why we don't rely only on snapshots to backup our VMs. We also use Veeam and for critical SQL databases we use native SQL backups and in one case, another backup solution (Veritas) that can do SQL better.
ESXi is the right host OS if you want all the features a host OS would normally need to provide AND if you ware willing to pay for the license. It's not cheap. You will also want to pay for VMWare support unless you have an on-staff VMWare admin who really knows their way around ESXi and vSphere / vCenter functions.

If you want a free hypervisor? Then you need to try Hyper-V first to see if it can do everything you think it should be able to do. Hyper-V comes with Windows (both the server and PC flavors) as a role. It can do some basic functions of a host. But it doesn't have all the full capabilities and management features that ESXi hosts do when managed with vSphere / vCenter.
Score 10 out of 10
Vetted Review
Verified User
Incentivized
VMware ESXi is the of our on-premises server virtualization efforts. VMware ESXi is leveraged by the IT department for all services which are not cloud-ready or for services deemed to stay within our own control. VMware ESXi (with vCenter) allows us to be nimble with deadlines and requirements from various areas within our organization, as we leverage a significant amount of automation to streamline requests.
  • Just works. VMware ESXi is a proven solution with a lot of additional components that provide more value.
  • VMware ESXi is a great platform for new users to learn. Having both GUI and CLI components to manage the host server and subsequent virtual machines allow for click-based admins to get work done, while also providing the avenues for streamlining with automation within CLI based connections.
  • I would love for some of the features only available within the upper tiers of ESXi licensing to be available for Standard licensing purchases. There is a vast difference between free, standard, enterprise plus licensing.
  • The learning curve might be an issue for some users, but can be overcome with the vast amount of resources available. You might have to train to find all of the resources as well.
At our organization, ESXi has been the backbone of our on-site infrastructure since 2013. I have not had an instance where VMware ESXi (with the appropriate add-ons) was not able to fit or exceed what we needed the product to do. We utilize VMware ESXi (enterprise plus) with vCenter, NSX, VSAN, and other products now. Our original deployment was just VMware ESXi connected to fiber channel based storage. Looking back we have gained a lot of features and tools to fix other issues, but ESXi works just as great as it always has for a hypervisor product.
Score 8 out of 10
Vetted Review
Verified User
Incentivized
VMware ESXi is used to host our server farms, it provides us with high availability and optimizes the use of our hardware, allowing us to better use the available hardware. The high availability part comes into play when hardware failures occur or maintenance is required. Allowing the virtual servers to be moved easily to different hosts.
  • High Availability
  • Resource management
  • Hardware virtualization
  • The licenses policy are not very rigid and the best options are stuck behind the most expensive license.
  • Configuration management is limited versus some other products currently on the market.
  • Better/simpler automation would be great, for example automated ways of doing blue green would be very welcome.
VMware has been the standard for years regarding server virtualization. They are still the best in this field, providing a very solid platform with well-tested features. If you are running your applications on classical servers and have not made the jump to the container space yet, ESXi is a great solution for your needs.
Score 10 out of 10
Vetted Review
Verified User
Incentivized
We utilize ESXi to help get more bang for our buck for our compute workloads. We run primarily Windows and Linux workloads. We use ESXi across our whole organization. ESXi allows us to perform maintenance without downtime. We can also automate provisioning and maintenance with tools to allow for more efficient use of our time.
  • Stable software.
  • Supports many guest OS'es.
  • Allows for automation.
  • Allows for more uptime.
  • Quality support can be hard to receive.
  • Licensing for features can be expensive.
  • The learning curve for new users can be steep.
ESXi is great when you want your hardware to have more than one purpose. It allows for easy management and helps alleviate repetitive mundane tasks. Sometimes licensing can be a problem depending on the type of licensing model. We have had great luck with VMware and the way it works.
Score 9 out of 10
Vetted Review
Verified User
Incentivized
EXSi is the foundation for all of our virtual machines. Virtualization has allowed us to scale down our physical server count considerably, reducing overhead costs. It allows us flexibility in terms of spinning up new virtual machines and how we manage them with vCenter
  • Makes it incredibly easy to deploy new virtual machines.
  • Works well with our SAN and our backup software integrates nicely with ESXi.
  • Their support has been helpful when I've needed it.
  • We are on version 6.0 and it has some Flash problem with browsers. We could not manage vCenter after a Flash update in google and had to use the thick client.
  • It would be nice if it was easier to update. They have gotten better with subsequent releases but it's not great with 6.0.
  • It's not cheap compared to Hyper-V
I've enjoyed my experience with ESXi, it makes daily tasks easy and allows us to grow quickly when we need to. There is a learning curve so someone coming from a Hyper-V environment might need to study up or take a course to become proficient. It might be overkill for small business not needing the flexibility of ESXi.
August 09, 2018

VMware Review

Score 8 out of 10
Vetted Review
Verified User
Incentivized
It's used to manage guest OS/virtual machines within our organizations Unified Communications infrastructure. ESXi is being used by multiple groups within our organization. ESXi helps reduce our hardware footprint while improving availability of services.
  • Allows system administrators to manage multiple hosts via one interface.
  • Perform multiple management tasks
  • Provides excellent memory management
  • Learning curve for support staff
  • live migration of hosts supporting realtime protocols
  • some maintenance requires downtime
Supports a high amount of guest host
CHRIS ROGERS | TrustRadius Reviewer
Score 8 out of 10
Vetted Review
Verified User
Incentivized
I started to use ESXi as a way to build, control, configure, and push-out virtual machines (servers) throughout my company. I am now able to set out a selection of systems to individuals to use and once done and I have the data and work completed from an employee I can easily keep data and delete that used VM which I can relaunch at anytime from anywhere. I use these VMs so that I don't have to worry about any viruses and malware getting back into my main server. ESXi also works great with VCenter and setting up virtual networks.
  • IT admin has complete control over these VMs through ESXi as well as being able to release a new VM if the prior VM system has any issue, this saves hundreds of hours for our admins.
  • Using ESXi together with VCenter is a great platform for maintaining the VMs, virtual networks, building datacenters, and tracking what is going on with our VMs.
  • ESXi that I had set up as a lab to learn from and to teach others off of saved our entire network from a serious hack out of China. When I set up this ESXi as a learning platform I set it in a way that it was the main point of our network (by accident) this accident stopped a brute force attack that was done through a 3 day weekend with over thousands of attempts to hack into. They only got into a BS VM that was set for learning. This saved us a lot of money and embarrassment.
  • Better way of teaching, make ESXI easier to learn to use
  • Configuration need to be a bit easier to understand
  • VMware needs to do something about the learning costs
Having the ability to reset a VM and getting back to work faster. This is a great tool for using in ways that don't need to cost thousands of dollars to purchase another system if one fails, you simply relaunch a new VM.
Ben Liebowitz | TrustRadius Reviewer
Score 10 out of 10
Vetted Review
Verified User
Incentivized
I currently support and manage multiple VMware ESXi environments for my organization. We have environments for production, QA/Dev, VDI, etc. Using ESXi allows us to provide fault tolerance to our virtual machines, reduce our hardware footprint and in doing so reduce the amount of power and HVAC needs in our data center.
  • VMware ESXi is number one in server virtualization for a reason. They have been doing it for a very long time and do it well!
  • The ability to migrate workloads between hosts or even across different vCenters with no downtime is amazing.
  • Being able to virtualize the storage with vSAN and networking with VDS switches or NSX is amazing!
  • As vSphere has been my primary area of focus for the last 6 of the 10 years I've been using it, I really don't see problem areas anymore. The product has grown and continues to grow!
  • Learning the entire VMware product family is not an easy thing to do without training. I recommend setting up a lab at home to learn. Look into the VMware User Group's VMUG Advantage program for licenses for a home lab.
VMware ESXi is well suited in a variety of environments. It really shines in an enterprise environment though. The more you virtualize, the less hardware you need, which equates to savings on power, cooling, real estate space, etc. It's also a great product for the small/medium business. They just have to buy a limited footprint and they can build several servers on top of that virtualized hardware.
Score 8 out of 10
Vetted Review
Verified User
Incentivized
VMware ESXi is being used throughout our whole organization, across our entire server environment. When we initially moved to VMware, it addressed the issue of having old, outdated hardware and allowed us to move to a new virtual platform. We were able to consolidate our infrastructure from 20 physical servers to 3 servers through the use of VMware.
  • VMware allows us to save time by installing servers much quicker than before, through the use of templates.
  • VMware vCenter controls all aspects of our server environment through one console and provides detailed hardware information.
  • The ability to move virtual servers from one host to another in a matter of minutes, which allows us to install server upgrades with no downtime.
  • Licensing costs are high, and are done by CPU, rather than per server host. As a result, this can add up pretty quickly with a large server environment.
  • Learning curve may be higher for those people that have not used a virtual platform.
  • Some applications have reduced performance in a virtual environment, and run better on physical hardware.
VMware would be well suited in an environment where you have at least 10 servers (email, database, file servers, web). This would make sense because you can consolidate a larger physical infrastructure into 2 or 3 VMware hosts and increase reliability as well through redundancy.

VMware would be less appropriate if a business only has several servers, because they will spend more on licensing and will not appreciate all the aspects that VMware provides (redundancy, disaster recovery, system upgrades).
Ethan Tran | TrustRadius Reviewer
Score 8 out of 10
Vetted Review
Verified User
Incentivized
We used it in conjunction with vcenter to manage our virtual machines. It is partially used by our department. The business problem it addresses is to allow us to create a test environment and maximize hardware infrastructure.
  • GUI is very easy to use. Learning curve is low.
  • This software can be deployed for many nodes through puppet.
  • The ability to do snapshot restores quickly is great compared with ovirt.
  • To utilize vmware esxi fully, you need to couple it with paid software (vcenter).
  • Not easy to automate the deployment this software on many nodes unless you purchase vcenter or puppet.
  • No ability for DRS unless you buy vcenter.
It becomes a beast to manage if you have more than 10 nodes.
October 14, 2015

VMware ROCKS

Score 10 out of 10
Vetted Review
Verified User
Incentivized
Our test/lab environment currently runs on a VMware backend to maximize physical hardware. We currently have 8 VMs running on a ESXi system.
  • Hardware utilization for virtual machines
  • Low hypervisor requirements
  • Free product (ESXI)
  • Easy to administer
  • Move back away from web administration
  • Make ESXi easier to patch without the patch management add in in vCenter.
  • Implement a mid point between ESXi (free) and ESXi with vCenter server.
From lab/test environments to full Production systems, just use it, and you'll see why the bulk of the market uses VMware.
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