Skip to main content
TrustRadius
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.

Read more
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, …
Continue reading

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. …
Continue reading

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 …
Continue reading
Read all reviews

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

View all pros & cons
Return to navigation

Pricing

View all pricing
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

Would you like us to let the vendor know that you want pricing?

269 people also want pricing

Alternatives Pricing

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

Return to navigation

Product Demos

VMware ESXi 5.1 Install & Configure In Oracle Virtual Box

YouTube
Return to navigation

Features

Server Virtualization

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

8.7
Avg 8.3
Return to navigation

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).
Return to navigation

Comparisons

View all alternatives
Return to navigation

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

(1-25 of 46)
Companies can't remove reviews or game the system. Here's why
Score 9 out of 10
Vetted Review
Verified User
Incentivized
We were facing multiple issues related to security and privacy due to work from home environment, and VMware helped in this regard with its top-of-the-line flagship product ESXi. Our employees love the way virtual machine work with an added layer of security, along with the great performance provided by Vmware.
  • Great secure environment for our employees.
  • Virtual machines get ready in no time, making it a quick task.
  • The performance of virtual machines is great which increases productivity.
  • The integration with the Windows server can be made smoother.
  • Cost can be reduced as compared to competitors.
  • It should be made more user-friendly for Vmware administrators.
It has been a great tool that helps us maintain a secure environment to keep our valuable client information from getting into the wrong hands. It has also gained clients' trust, which also had a positive ROI on our investment. Clients believe in VMware, and we try to deliver what our clients demand.
Brendon Brown | TrustRadius Reviewer
Score 10 out of 10
Vetted Review
Verified User
Incentivized
ESXI allows us to run multiple and separate headless services on different platforms all on the same hardware, while also allowing for quick spin-up of user stations for temporary or remote access. Using VMware ESXi allows us to invest in server infrastructure instead of end-user devices, which allows us to keep maintenance and security closer to the IT department.
  • Simple deployment on metal using SD or USB.
  • Fast spin-up of guest machines.
  • Detailed information and management options for Network and Storage
  • External USB devices can have occasional issues when passing through to a VM.
  • Issues with implementing and passing through GPUs to VMs.
If you're looking for the industry standard in server virtualization, I would recommend ESXi. After decades of expertise in the field, VMware continues to provide a strong product, production-ready, with an easy-to-learn interface that allows for quick management along with less costly upfront onboarding and training. Grab the free personal-use license and install in your homelab to start!
Score 10 out of 10
Vetted Review
Verified User
Incentivized
We use VMware ESXi to host all of our VMs. It houses 95% of our on-prem infrastructure. We have a cluster of hosts that do this work with a SAN on the backend.
  • Reliability
  • Ease of use
  • Management
  • Support & updates
  • They are deprecating old hardware soon
  • Networking is difficult
It is great if you host a lot of virtual machines.
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.
Adam Friedli | TrustRadius Reviewer
Score 10 out of 10
Vetted Review
Verified User
Incentivized
We use it to host our on-premise environment. So, it is critical in order for all of our systems to operate. It is also utilized for the disaster recovery environment. It has worked extremely well since it's been in use, and we know we can count on it to keep everything running. It's also able to load balance so our resources are used efficiently and not wasted.
  • Resource management. The automatic load balancing works very well to ensure no host is taxed disproportionately compared to the others.
  • Templates and cloning. It is very easy to set up a template and spin up new servers based on a specific setup. This makes server management very streamlined.
  • VM management. The vSphere interface is very easy to use and navigate. Everything is responsive and it works when you need it to. The options are also robust while also being arranged in a straightforward manner.
  • We are not on the latest version yet (pre-7.0), so this might be related to our current version. Sometimes when VMs are rebooted, the virtual NIC will be in a bad state and will have no network connectivity. Disconnecting and reconnecting the vNIC will fix this quickly. It's easy to fix, but definitely an annoyance. We'll be upgrading in the near future, so we are optimistic this will be fixed.
  • Due to the complexity of the environment, it can be difficult to figure out when some odd issues are related to storage or something else. For instance, there was a time when refreshing the storage connections for all hosts fixed an issue, but there was no direct indication that anything was going on with the storage connections. I don't know if this is clearer to see in newer versions, but having a way to indicate that in some way can make certain troubleshooting easier to do.
  • Access to some resources requires a VMware account, while others do not. I can understand this is the case due to licenses being required for certain product support. We have never been in a situation where we couldn't access anything, plus we have all of the accounts and licenses we need. However, it can be confusing for someone new to managing a VMware environment why they can't access something they need to manage the environment.
I have seen and managed VMware environments of various sizes from a larger company down to small and medium businesses. I feel it is an excellent solution for all business sizes. For anyone looking for a virtual environment for their infrastructure, it works well and can scale easily as a business grows. The tools provided make management simple, and VMware support is one of the best experiences I have ever had out of all of the companies I have dealt with. They are a benchmark in that regard.
Score 10 out of 10
Vetted Review
Verified User
Incentivized
I implemented VMware ESXi host with 2 x 6 core CPUs, 72GB RAM and 500GB local storage. To run three Windows virtual machines with different configurations such as 1) 4 vCPU, 12GB RAM and 80GB storage 2) 3 vCPU, 8GB RAM and 60GB storage 3) 2 vCPU 4GB RAM and 50GB storage. As VMware ESXi is the type 1 hypervisor, we can reduce data centre space, power and IT administrative requirements. In our use case, it was better for IT administrative requirements.
  • High-speed performance.
  • Memory occupation is less than 150 MB.
  • Itself allows for the basic creation and management of virtual machine.
  • Remove API limitations in the free version.
  • Allows more than 8 vCPUs per VM.
  • Support from VMware and documentation.
Extended page table support comes in handy if you're trying to attach a GPU to a virtual machine or if you're trying to do some sort of nested virtualization which is a good way to test Hyper-V. If you require a single virtual machine or similar needs for the machine, it is not recommended to use. But when you have fewer hardware facilities, it is highly recommended to use them.
Score 9 out of 10
Vetted Review
Verified User
Incentivized
VMware ESXi allows us to run multiple virtual servers on one physical piece of hardware. We have a virtual server for the phone, one for the e-commerce site, one for the inventory application, one as a firewall/router, and one for general file storage. It allows to easily bring up a server to test a new piece of software.
  • Save money.
  • Centralized computing.
  • Allows easy evaluation of new software.
  • Hardware monitoring.
Appropriate: Small business environment (when multiple virtual servers are needed.
Less appropriate: 24/7 environment (unless you spend lots of money on high availability servers.
Score 10 out of 10
Vetted Review
Verified User
Incentivized
VMware ESXi with vCenter Server is how my entire server rack runs. 99% of my servers are all virtual, all running on VMware ESXi. Those 20 servers are running on 3 hosts in a cluster to maximize their fault tolerance and high availability in the event of a host failure. Over the years, I have added a myriad of Linux servers on the fly. Some Linux servers are testbeds for new systems or research into different open source systems our organization could benefit from. Others are things like intranet web servers for internal communications, database servers, or instant messaging systems. It truly gives me the flexibility to add new services as needed in my environment. My servers also run better as I move to newer hosts as I can increase memory, number of processors, and storage when needed (and when physically available on the hosts.)
  • Scalability
  • Fault tolerance resilience.
  • Centralized management.
  • Host network hardware configuration.
  • Physical-to-Virtual conversion can be tricky.
  • Some of the back-end configurations are exceptionally tricky to learn.
If you're looking for basic virtual servers that you can buy one larger server to run 5+ smaller servers on, the basic VMware ESXi license is free to use. Also good if you're testing how to create virtual servers or test a new environment. On the negative side, to use features like clustering and fault tolerance, you need a higher level license above their base "free" VMware ESXi license and the need for their vCenter Server to maintain it. That can carry a hefty annual software/support maintenance bill every year.

On the professional end, racks of individual servers reduced to a few physical hosts save space, power consumption, and financial resources. The hosts may need to be a bit more powerful than the individual servers, so one host will cost more, but a single host will cost less than replacing 5 single servers. Even if you plan a cluster, which will cost physical raw hard drive storage space like a RAID will, the cost over replacing 5 individual physical servers still comes out cheaper. If you can justify the lower cost for the physical hardware and plan to use the money unspent there to help pay for the upper level license costs, you are good to go.
Score 10 out of 10
Vetted Review
Verified User
Incentivized
Currently, we use VMware ESXi to host our virtual environment of servers and workstations in our organization. The business problem that we address by using VMware ESXi is that it gives us a product that we can use to easily set up a virtual environment which saves us time and money. We don't have to use physical servers and workstations to set up servers and other appliances. When other functional departments in our company require servers to be stood up we can deploy it in our VMware ESXi environment seamlessly.
  • VMware ESXi provides a wizard for the hypervisor to be installed making it very easy to configure on almost any bare metal box.
  • It provides an easy interface to see information about the Virtual Machines you have set on the VMware ESXi hypervisor.
  • VMware ESXi is also very easily upgradable. The hypervisor takes care of all the necessary tasks prior to a hypervisor upgrade, allowing for peace of mind when upgrading and no effect on the virtual machines you have running.
  • VMware ESXi can improve on the UI that is installed on the bare metal machine. The menus can be hard to navigate when looking for simple configuration items.
  • VMware ESXi can improve on the stability of their overall hypervisor. There have been a few times we had to reinstall due to corruption of VMware ESXi.
  • I would like to see VMware ESXi do better at adding more standard free features in their consumer version of VMware ESXi. For example, having the ability to back up virtual machines is good practice and something that would be very nice if offered in their free version.
VMware ESXi is best suited for organizations looking to create or expand their virtual environment. If an organization is continuing to deploy physical workstations or servers, they can save lots of time, money, and space investing in VMware ESXi to build a virtual environment. This will also prevent further headaches in having the recover corrupt servers or workstations as ESXi makes it very easy to take snapshots and integrate 3rd party backup solutions. Where VMware ESXi is less appropriate would be for small "mom/pop" outfits that aren't requiring too many servers or virtual workstations. There is a standard equipment set and technical environment required for VMware ESXi which small business may not need to invest in if they aren't looking for virtual environment solutions.
Score 8 out of 10
Vetted Review
Verified User
Incentivized
We use VMware ESXi as our primary hypervisor platform for two separate environments with a combined total of approx 300 virtual machines split over two datacentres. For our main production environment, we have an HA cluster spread over both DC's with replicated storage supported the VMs. This works perfectly for us as we have the ability for full failover if needed and VMware takes a lot of the issues away by handling all the failover of virtual machines to other hosts etc.
  • HA Failover
  • SAN Management
  • Cluster Resource Management
  • iSCSI Storage connectivity
  • Update Management
  • Host Management
Using vCenter, the management of multiple hosts is very straightforward. We have an environment with about 30 ESXi hosts so management of these without vCenter would be extremely difficult. However, due to having a web interface for all hosts and vCenter etc, securing everything with web certificates can be frustrating. Using plugins in vCenter, management of third party equipment such as SAN arrays does make life a lot easier being able to manage everything from the one place - single pane of glass etc.
Backups are also made easy and straightforward using systems such as Veeam which plugs in directly to vCenter.
Score 10 out of 10
Vetted Review
Verified User
Incentivized
We make use of VMware ESXi and vCenter with a collection of clustered servers, geographically split between two data centres. These data centres run our critical business applications that require an on premises locale. Connected to our SAN, ESXi allows us to have a robust, secure, and easily manageable interface with a platform that supports integration with other vendors to allow for expansion, recovery or backup.
  • Quick deployment of VMs.
  • Small footprint.
  • Easy install.
  • Backup integration.
  • Secure.
  • Premium Price
VMware ESXi are the market leader and make management / administration simple and intuitive. If you've got the budget to get vCenter and particularly the essentials package that supports vMotion, then moving machines for maintenance is hassle free. Integration with the likes of Veeam make backup and recovery very simple. The templates to copy a machine or to quickly deploy several VMs has saved us a lot of time.
January 23, 2020

Highly recommended

Score 10 out of 10
Vetted Review
Verified User
Incentivized
VMware ESXi is currently used by most of my organization, and I manage two separate sites that have it implemented. It provides a stable and reliable base for our virtual infrastructure. It has been easy to maintain and control, and expansion has also been quite straightforward when we've had the requirement.
  • Allows control of VM's on the host, which is helpful if vSphere is unavailable.
  • As you would expect, it integrates perfectly with vSphere.
  • A better interface to monitor the logs in VMware Esxi would be helpful.
I would say VMware ESXi suited to most environments, really, depending on the available budget. It has proven very reliable in my experience, which is very valuable to us, as we are a 24/7 company.
January 18, 2020

We recommend VMware ESXi

Score 9 out of 10
Vetted Review
Verified User
Incentivized
VMware ESXi is being used by our organization to host virtual machines, specifically Windows servers. It is just used in our department, however, IT does serve the entire organization. It does exactly what it was designed to do: spread underused physical IT resources across a virtual environment resulting in significant savings.
  • Allows a single set of hardware to service many virtual servers.
  • Great management interface.
  • I haven't used it in a while, but the web client is not that great.
  • I don't really have any complaints, the product just works.
VMware ESXi is well suited for pretty much any IT environment that plans on having multiple servers. I suppose if you are small, have zero IT people, and have zero desire to learn the product, it would be best to skip it.

Score 10 out of 10
Vetted Review
Verified User
Incentivized
We use VMware for almost all of our entire server infrastructure. The only servers we don't have virtualized are backup and video servers. It would be difficult to manage the number of physical servers it would take to server the school district at this point. It saves us a lot of time and money by keeping our physical server infrastructure small and easily manageable.
  • Hugely reduces our need for physical hardware. Our four hosts handle over 130 virtual servers without any problems.
  • It is stable. I have not had an ESXi server crash in years, nor do I really ever have to reboot them for problems. They just run smoothly.
  • The HTML5 web interface has taken a while to be brought to parity with the old thick client, and a few features are sometimes tricky to find.
If you have the proper hardware, and desire stability and support, then ESXi is about at the top of the list. It has a proven reputation, and you can't really be blamed for buying the best.

If your budget is low, and/or you might not have the latest hardware, some of the open source virtualization products might be a better fit.
Ashley Davis | TrustRadius Reviewer
Score 9 out of 10
Vetted Review
Verified User
Incentivized
vSphere ESXi is a hypervisor similar to HyperV or Xen, essentially a platform for running many virtual servers on one hardware server or cluster. Primarily it allows you to build out one hardware server on which you virtualize your application and/or role servers. It provides a layer of abstraction between the hardware itself and the application layer that gives you the ability to allocate and reallocate hardware resources and perform actions like cold reboots without having access to a power button or cable.
  • Easy to install.
  • Very powerful.
  • Very picky about what hardware it will install on.
  • Many features locked behind advanced licenses and/or additional products (like vCenter).
All in all, vSphere ESXi is almost always the best solution for virtualization. Hobbyists and homelabbers will appreciate the ability to learn core features at no cost. Small businesses will benefit from consolidating hardware into one server where their domain controller, SQL server, file server, etc. can all still run independently. Medium to large businesses will find a lot of security in scalability and clustering.
Karen Thompson | TrustRadius Reviewer
Score 10 out of 10
Vetted Review
Verified User
Incentivized
VMware ESXi is used to host most servers at my site. It is the company standard for virtualization across my company, at least in North America. It allows us to save costs on hardware and licensing for hosting servers and workstations. We can test development, upgrades, and changes on copies of servers before having to do it on a production/live server. Since we can copy an actual server, we know exactly how it will respond to changes. This helps us save on trouble-shooting, save on server recovery, and so many other things.
  • VMware is not buggy. In IT we have to work around so many things for products to work the way we expect, or the way we want. I have not had to work around things with ESXi. It works as advertised.
  • Sever uptime. Even with hardware failures, and system bugs, VMware keeps our systems up. ESXi has been reliable. I never even think about the OS failing or having issues. That is one less thing to worry about.
  • Server deployment. We can deploy a new server in minutes. Some servers come preconfigured with OVF files where we just tell VMWare to set up a new server and point to the config file and tada there is a new server. We can create templates, where the OS and updates are already installed and we just create a new server from the template in minutes. I actually prefer creating one from scratch, and it only takes a few minutes to choose the hardware and start the OS installation. The longest part is installing the OS. It takes forever at my company to approve spending any money. With VMWare, I can set up new servers without any cost so there is no delay. When I want a server, I set it up. I don't have to wait over a month to design, get approval to order, wait for delivery, then set up the hardware, etc. It is fantastic, and such a time saver.
  • VMWare's Compatibility Guide on-line is excellent. It is very detailed and easy to discover if there will be any hardware issues. When adding or replacing hosts, this is a must-visit site. It has answered every question I've had without having to call support or talk to anyone to analyze if this hardware will match that one. It is a user-friendly site that gives you all the information you need. It has given me a starting point for buying new servers when my company changed its standard on server hardware. I would not have known where to start in configuring a new host, but this site told me what was compatible with what I had and it became an easy task.
  • The new interface for accessing the hosts directly doesn't work well with all browsers. We have restrictions at my company. We use Edge or IE. I had a lot of trouble uploading a file to the datastore because Edge and IE wouldn't play nice. The problem is probably mostly on MS's side, but it would be nice if it could work better with all browsers.
I think VMware ESXi would be well suited for any company that has more than a few servers. If you have two servers, you might as well virtualize them and make your hardware hosts in a VMware environment. It will keep your servers up and running if you have any hardware failures. If you backup your servers, you can quickly and easily restore them after any software crashes. You can test all updates and changes before actually deploying them. I have had to do major reconfiguration of servers, and was unsure of how the server software would respond. You can easily make a copy of a server, launch it and do all the testing you need. If something doesn't work, start over again until you find the solution. It does cost to have the licenses, but you can calculate the cost of downtime if you didn't have it to see if it is worth it for you. If you have a very small environment, it may not be cost-effective, but it will surely improve the time you spend in IT. It would be good to have an idea about how the environment works, but once you learn, support can help with any other issues you have.
Stefan Semo | TrustRadius Reviewer
Score 10 out of 10
Vetted Review
Verified User
Incentivized
Our organization makes extensive use of a datacenter and has virtualized hundreds of Windows servers on bare metal hardware. These servers work to process logins, provide access to our student information and registration data, hold and manage email, provide shared drives for file exchanges, websites for access by our schools and parents, etc.
  • Very efficient on bare hardware
  • Installs a very small hypervisor footprint
  • The web management interface utilizing HTML 5 is still not fully mature.
  • Could use the ability to clone a host configuration in case the bootable media fails.
VMware ESXi is an excellent product to get the most out of your bare metal hardware. Lots of server manufacturers provide pre-built install images that are optimized for their servers, so that one can take full advantage of the hardware features and interface with the built-in sensors. However, VMware ESXi is a costly product and for small organizations going the Microsoft Hyper-V route will be a big cost savings even tho it is not as robust and efficient.
Brian Munn | TrustRadius Reviewer
Score 9 out of 10
Vetted Review
Verified User
Incentivized
We have implemented VMware ESXi at our primary data center and all of our remote office locations. It is being used across our whole organization and provides a quick and easy way to provision servers as needed. VMware ESXi has consolidated our server footprint from racks of physical servers to only a few VMware ESXi hosts that can support hundreds of virtual servers. Servers can now be provisioned in a matter of minutes rather than days.
  • Quick and accessible to provision servers as needed. Templates can be configured in VMware ESXi.
  • VMware ESXi host software efficiently manages hardware resources so that a single-host server can support multiple virtual servers without causing resource contention.
  • Understanding Resource groups and resource reservations can be difficult and cause issues if not fully understood.
  • I would like to see better performance monitoring capabilities from the web GUI. The current options can be cumbersome, and many still need to be monitored from the command line.
I believe VMware ESXi is an excellent solution for all medium to enterprise-level companies. VMware ESXi does provide options for small business, but depending on features needed, this can be costly. VMware ESXi is the industry standard for virtualized data centers and continues to improve and innovate in the virtualized server space.
Dan Lepinski | TrustRadius Reviewer
Score 10 out of 10
Vetted Review
Verified User
Incentivized
We use VMware ESXi across our global organization. It's managed by our System Administrators and leveraged by our DevOps teams to help automate business processes. It gives us flexibility and stability for testing. We have multi-ESXi host clusters for high availability. VMware ESXi has allowed us to virtualize most of our physical server infrastructure which has allowed us to work remotely from our data centers. It removes the need to lifecycle 100's of physical servers in favor of a simple lifecycle of a few VMware ESXi hosts.
  • High availability. Clustered VMware ESXi hosts make it easy to take a host out of production.
  • Storage DRS helps balance virtual disks across the cluster.
  • The Flash and HTML5 web interfaces are missing simple sorting features for some lists.
  • Errors messages can be vague at times, which requires searching the community for answers.
VMware ESXi is well suited where you don't have the physical space needed for the number servers you require. If you have applications that require little to no downtime, VMware ESXi can help provide that when clustered with other hosts. VMware ESXi will allow you to snapshot servers prior to major upgrades and changes. This provides a relatively safe fallback option if the upgrade doesn't go well. You can also leverage this to quickly go back to a clean state when testing new software or code.
Eric Wyman | TrustRadius Reviewer
Score 7 out of 10
Vetted Review
Verified User
Incentivized
We currently use ESXi to run administrative virtual appliances that are not currently supported by our primary hyper-converged hypervisor. This setup includes three virtual appliances, vCenter to manage two host machines located in two physical locations. The second host is a replication target for the primary host to assure business continuity in a disaster recovery event.
  • ESXi is probably more diverse in the operating systems it supports than other offerings.
  • ESXi has a wide range of third party integrations to focus in on your businesses needs.
  • ESXi is very rigid in its manageability.
  • The management interface is not as simplistic as it could be.
ESXi is well suited for small shops requiring three or fewer hosts, that have a capable and knowledgeable IT department with tight budgets, and minimal technology requirements. It is also suited for very large enterprise entities with large budgets and capable IT staff. Medium-sized businesses that require more than an Essentials Plus license (supports up to three hosts) should consider other available options before deciding to go with ESXi as the licensing costs beyond Essentials Plus are quite extensive.
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.
Rodney Barnhardt | TrustRadius Reviewer
Score 9 out of 10
Vetted Review
Verified User
Incentivized
VMware ESXi is the product that hosts the majority of our virtual server environment. There are several environments set up at several different locations. Managing the environments is easy through the use of vCenter. Having the ability to quickly adjust the needed resources of each virtual machine, provides us the ability to address performance problems as they arise. It does not matter if the system needs an increase in memory, CPU, or disk space, the changes or new resources can be added in a matter of minutes.
  • Allows quick and easy cloning and customization of new systems.
  • Provides the ability to move or transfer virtual machines between environments.
  • Upgrades could be made easier or more automated.
  • Prefer a thick client back. The web one still seems buggy at times.
Having used or worked with the major hypervisors, my preference is still VMware ESXi over the other products. One of the key features it has that make the management of virtual machine so easy is the ability to right-click on a system to perform numerous tasks on it. Also, the ability to structure the environment all in one view, not only simplifies moving around between environments, but providing role-based access control as needed is very beneficial from a security standpoint.
Score 9 out of 10
Vetted Review
Verified User
Incentivized
We use VMware ESXi in our local data center to run all the on-premise virtual machines with ease. We can deploy or clone machines in a second, manage them perfectly as well as maintain backups and all our hyper-converged infrastructure through the VMware plugin, hence it has become the heart of our data center.
  • Best on-premise data center hypervisor.
  • Stability of the platform.
  • Security in all the needed aspects.
  • Web interface is sometimes laggy.
  • Licenses are not very cheap.
  • Automation can be improved.
Great for "old fashioned" companies like us that mostly still use on-premise infrastructure. But on the good side once we decide to move to the cloud, it will also be great to manage cloud infra as well with the hybrid cloud and multi cloud focus nowadays. Really cannot think of data center scenario where VMware would not fit in.
Score 8 out of 10
Vetted Review
Verified User
Incentivized
VMware ESXi is being utilized to bring virtualization into the current environment. ESXi is the backbone of the virtual infrastructure within the organization. It was brought in originally to assist with some virtual systems for remote users who needed to utilize software that does not behave well through VPN. By bringing in this product we allowed out user base to take advantage of virtual systems that can be accessed from any location that has internet access.
  • Manage resources for virtual machines
  • Allows ease of access to maintain and upkeep VDI
  • Gives a high level overview of current resources that are being used
  • The various add-on features can make things a bit complicated
  • It is an expensive solution v.s other options
  • Web interface is not the easiest to navigate
This software is fantastic when it comes to providing visibility for multiple virtual systems that have been implemented within the infrastructure. The ability to have eyes on multiple virtual servers and their current workload is fantastic, with VMWare ESXi you can verify which server is experiencing a high amount of use and allocate resources from a system that is not being utilized as much to alleviate pressure.
Return to navigation