- Storage VMotion
- High Availability
- Distributed Resource Scheduler
System Administrator at a university with 1,001-5,000 employees
We've used it to move 80% of our servers to a virtual environment, but it lacks a good built-in backup feature.
What is most valuable?
How has it helped my organization?
We started moving to a virtual environment using VMWare very early on, and now more than 80% of our servers are virtual. We had a big server farm before, and our data center was filled with servers, now all our servers fit in one rack. Also, on physical machines increasing resources is a very difficult task, requiring downtime, but with VMs, we can do it on the fly.
What needs improvement?
They should have a good built-in backup feature. Although there is a built-in feature already, it is called VMWare Data Protection, but it is not at all user friendly.
For how long have I used the solution?
I've used it for more than six years.
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What was my experience with deployment of the solution?
No issues encountered.
What do I think about the stability of the solution?
No issues encountered.
What do I think about the scalability of the solution?
No issues encountered.
How are customer service and support?
Customer Service:
It's very good.
Technical Support:It's very good.
Which solution did I use previously and why did I switch?
No previous solution was used.
How was the initial setup?
It was straightforward.
What about the implementation team?
I did it myself.
What was our ROI?
It is very high.
What's my experience with pricing, setup cost, and licensing?
Pricing is high as VMWare’s cost is always high.
Which other solutions did I evaluate?
No other options were evaluated.
What other advice do I have?
It is a very good solution and it is stable.
Disclosure: My company does not have a business relationship with this vendor other than being a customer.
VMware Consultant at a media company with 1,001-5,000 employees
With its High Availability feature, it's become a standard hypervisor with our customers, though the VDI could use improvement.
What is most valuable?
- High Availability
- Distributed Resource Scheduler
- Site Recovery
How has it helped my organization?
It has allowed us to provide services to our customers more efficiently than ever. Combined with HP Cloudsystem Matrix, it has become standard with our customers.
What needs improvement?
- VDI
- Backup solution
For how long have I used the solution?
I've been using it for the past nine years, since v2.5 was released.
What was my experience with deployment of the solution?
Not really, just some tuning prior to release into production.
What do I think about the stability of the solution?
Not at all, this is by far one of the most reliable hypervisors to date.
What do I think about the scalability of the solution?
ESXi allows us to grow dynamically and with minimum downtime.
How are customer service and technical support?
Customer Service:
9/10.
Technical Support:8/10.
Which solution did I use previously and why did I switch?
I have used Hyper-V solutions that lack many high availability features, and the idea of being a Windows based hypervisor made them not so stable.
How was the initial setup?
It was pretty much straightforward. It all depends on how deep you want to go with configuration.
What about the implementation team?
We implemented it for our customers.
What was our ROI?
From my position, it means lot less administration, and better ease of use. It also allows us to have fewer physical servers.
What's my experience with pricing, setup cost, and licensing?
Some may say it's not cheap, compared to Microsoft or Citrix, but when you master the solution, you realize its features are unique.
Which other solutions did I evaluate?
We just looked at the different licensing options.
What other advice do I have?
I would encourage you to try this solution not just for Labs, but for production and DRP solutions. I know there are many others out there, and some very good ones, but VMware has been evolving in the right direction, and it is still the benchmark for all the others.
Disclosure: My company does not have a business relationship with this vendor other than being a customer.
Buyer's Guide
VMware vSphere
January 2026
Learn what your peers think about VMware vSphere. Get advice and tips from experienced pros sharing their opinions. Updated: January 2026.
881,114 professionals have used our research since 2012.
Virtualization and Cloud Consultant at a tech services company with 10,001+ employees
It has fast server provisioning and improves disaster recovery.
What is most valuable?
Virtualization is the most valuable feature. Without it, working in the cloud and IT life as we know it is not possible.
How has it helped my organization?
- Fast server provisioning
- Saves energy
- It's green
- Improves disaster recovery
I have configured our environment in a way by which it will ease the process of provisioning the VMs by using automation workflows within the VMware environment.
Disaster recovery is very much helpful for any business where you require a maximum uptime or minimal downtime. We have two environments configured, hosted in two different locations, so if we encounter a disaster at one site, the network infrastructure will switch to the other site with minimal downtime (maximum 15 minutes).
For how long have I used the solution?
I've used it for over three years.
What was my experience with deployment of the solution?
There were challenges with the compatibility, design and architecture. If these three things are perfect on your table, then you will not face any issues while deploying anything. In our scenario, we encountered some issues with compatibility.
What do I think about the stability of the solution?
No issues encountered.
What do I think about the scalability of the solution?
No issues encountered.
How are customer service and technical support?
Customer Service:
7/10.
Technical Support:8/10.
Which solution did I use previously and why did I switch?
I was using Citrix. vSphere is far better than Citrix, in my opinion. There was a time that when you wanted to deploy a VDI environment, there would be no reason not to choose XenServers. But now, VMware vSphere is providing not just the VDI platform, but also the complete virtualization infrastructure with very good features.
How was the initial setup?
It is always straightforward if you follow the documentation.
What about the implementation team?
I tried it myself in-house in my lab environment.
What was our ROI?
I have learned a lot and am still learning.
What's my experience with pricing, setup cost, and licensing?
It's worthwhile investing as VMware is a leader in the virtualization market.
Which other solutions did I evaluate?
- Citrix
- Hyper-V
What other advice do I have?
Go ahead and implement it as you will enjoy using it.
Disclosure: My company does not have a business relationship with this vendor other than being a customer.
Storage and VMware Expert at a comms service provider with 1,001-5,000 employees
We can use all the resources available on the servers without losing CPU or memory resources.
What is most valuable?
I think that the Fault Tolerance and High Availability features are the most valuable ones. Storage vMotion, Server vMotion, and all the flexibility that vSphere can provide to a storage environment without interruption is also very good.
How has it helped my organization?
In the past, many organizations had many physical servers, and with VMWare we can consolidate many servers without compromising on the performance. We can save a lot of space in the data center. It also helps us to save power that, at this time, is a very important factor. With VMWare, we can use all the resources available on the servers without losing CPU or memory resources, and we can centralize the space into just one storage space.
In many areas of IT, you can use VMWare solutions. Here we have many applications running on the VMware vSphere, such as Oracle Database, MySQL, SQL, web applications, Apache, and many more. For all solutions of course, it depends on how the applications work, but until to day, I haven't observed any applications that won't work inside the vSphere infrastructure.
For how long have I used the solution?
I have been using it since v3.5, so more than eight years, I have experience with other VMWare solutions too.
What was my experience with deployment of the solution?
No, I did not have any issues because it all depends on how the environment was configured.
What do I think about the stability of the solution?
Nothing too important yet. The new v6.0 improves upon many features in vSphere High Availability. The enhancements correct issues of recovery from storage issues with a new feature called Virtual Machine Component Protection. This feature corrects many problems that we had when the backup tool lost connection with the ESXi servers.
What do I think about the scalability of the solution?
No, I did not have any issues because it all depends on how the environment was configured.
How are customer service and technical support?
Customer Service:
I haven't had any issues with customer service and most problems can be solved through their website.
Technical Support:I have not had any issues with technical support as they have solved any issues that I have had to contact them about.
Which solution did I use previously and why did I switch?
We have other solutions in the environment such as Oracle Rac and Microsoft Hyper-V, but I believe that vSphere is the most reliable product on the market.
How was the initial setup?
The initial setup wasn't complex because we have experience with other VMWare solutions.
What about the implementation team?
I implemented ii in-house.
What was our ROI?
Our ROI is high because we have 800 virtual servers spread across 22 physical ones.
What's my experience with pricing, setup cost, and licensing?
When compared to the impact that the product has had, I do not believe the cost to be too high.
Which other solutions did I evaluate?
I have tested other products such as Hyper-V and Zen, but I believe that vSphere is more stable and has many more features available.
What other advice do I have?
Go ahead and get it as this product is very, very stable.
Disclosure: My company does not have a business relationship with this vendor other than being a customer.
"I think that the Fault Tolerance and High Availability features are the most valuable ones. Storage vMotion, Server vMotion, and all the flexibility that vSphere can provide to a storage environment without interruption is also very good."
This is partly true, but should realize that this is only part of the solution. You still have Network, IO (in general), power fault tolerance. Most other features are more for added resiliency (ie dedupe/caching/MPIO/Jumboframing etc etc)
Failover from the macro viewpoint....I would say it starts with IO and ends with data from an infrastructure point of view. From a necessity point of view, the most important does have to be data fault tolerance...without data...why would anyone need infrastructure..
Why do I say that vmotion/server vmotion are not as vital? If a node/hypervisor goes down..it's only one thing and there should be little to no downtime..BUT if IO has gone haywire everywhere, network fails or if power completely blows (both A & B goes down)...you lose EVERYTHING, unless you have offsite DR etc etc...There's a lot more downtime involved when the top of the tree goes down, which is where I would put most of my concentration on to make better.
"In the past, many organizations had many physical servers, and with VMWare we can consolidate many servers without compromising on the performance. We can save a lot of space in the data center. "
This is true, however, not everything needs to be virtualized. Virtualization is just a small feature that has taken large strides to handle most tasks and workloads. I've yet to see an established solutionf rom VMWare also including Baremetal + features useful to enhancing performance of physical boxes.
Analista de Suporte Sênior Especializado with 10,001+ employees
With the High Availability feature, we have more confidence that the virtual servers are secured.
What is most valuable?
- Distributed Resource Scheduler
- High Availability
- Storage I/O Control
- vMotion
- Storage vMotion
- Fault tolerance
- vSphere distributed switch
How has it helped my organization?
Using vSphere, we have more confidence that the virtual servers are secured with the HA feature.
What needs improvement?
Party auditing users, as today we do not natively know what each user is doing in the virtual environment.
For how long have I used the solution?
I've used it for 10 years.
What was my experience with deployment of the solution?
There were no issues as we followed the documentation.
What do I think about the stability of the solution?
No issues encountered.
What do I think about the scalability of the solution?
The scalability of vSphere is amazing. No other virtualization manufacturer can even come close to the limits of vSphere's standards.
How are customer service and technical support?
Customer Service:
99.9999%
Technical Support:99%
Which solution did I use previously and why did I switch?
I used a different solution, but it was not even close to vSphere. It was a good solution for certain environments, but lacking some features.
What other advice do I have?
Take the time to study vSphere to get to know more about the product. There are a lot of documentation and labs available to help a person develop the skills required to work with vSphere.
Disclosure: My company does not have a business relationship with this vendor other than being a customer.
System Engineer with 10,001+ employees
By centralizing the customization process while removing common hardware problems, it makes the provisioning and deployment of virtual servers and clients quick and predictable.
What is most valuable?
- High Availability
- Distributed resource scheduling & vMotion
- Robust management toolset for automating routine tasks
How has it helped my organization?
vSphere provides the infrastructure framework to manage server and client systems in a multitude of user environments, from dedicated virtual workstations to short-term use systems. vSphere makes the provisioning and deployment of virtual servers and clients quick and predictable, centralizing the customization process while removing common hardware problems.
What needs improvement?
Fault Tolerance, which was introduced in version 5.5 and improved in 6.0, is a promising feature that has potential to ensure highly critical system availability in the enterprise environment. It presently has vCPU limitations which makes its deployment scenarios limited, but VMware has made great strides between the two versions, indicating that its usefulness will continue to improve.
For how long have I used the solution?
I've used it for four years.
What was my experience with deployment of the solution?
ESXi has some specific hardware requirements that administrators should make sure they are able to meet before deploying. While the platform can run on a considerable range of hardware, various features make use of specialized virtualization instruction sets in the hardware CPU that make the hypervisor suited to only a fraction of the common server hardware on the market. This is not a bad thing, as the benefits from these advanced features are well worth the cost of more advanced hardware. This is the only circumstance in which I have encountered obstacles to deployment.
What do I think about the stability of the solution?
No. The vSphere hypervisor is exceptionally stable, and the higher-level vSphere environment is quite adaptable to a fluctuating datacenter environment.
What do I think about the scalability of the solution?
No. The ability to expand the capacity of the vSphere environment is one of the core capabilities of the product.
How are customer service and technical support?
Customer Service:
Efficient and knowledgeable.
Technical Support:Good value, particularly considering a support contract is required with the purchase of vSphere licenses.
Which solution did I use previously and why did I switch?
No previous solution was used.
How was the initial setup?
It's straightforward, as vSphere is a mature product with well-rounded documentation, and an easy-to-understand interface.
What about the implementation team?
Our system was installed by a vendor team, but was configured in-house. Our vendor team provided a solid architecture solution, but it was insufficient for our requirements.
What's my experience with pricing, setup cost, and licensing?
Licensing is not a major obstacle to adopting this product in an enterprise environment. VMware does offer some specialized vSphere editions for small business environments in which cost may be a considerable factor. There is a wide range of options provided by VMware with suitable price points for each license.
Which other solutions did I evaluate?
We did not evaluate other options.
What other advice do I have?
Have a plan for system virtualization before pursuing vSphere. Often, the actual needs of an organization, particularly small and medium sized, are overestimated which leads to spending more for a product or product license than is necessary.
Disclosure: My company does not have a business relationship with this vendor other than being a customer.
vSphere Fault Tolerance was introduced from vSphere 4.x. And in vSphere 6.0, it is still called vSphere FT but in abbreviation for vSphere Symmetric Multiprocessor Fault Tolerance.
IT Systems Administrator at a tech company with 10,001+ employees
With vMotion, High Availability, and Distributed Resource Scheduler, we're able to administer hardware resources in a better way. But, it could use better DRS-friendly functions.
What is most valuable?
I'd say vMotion, High Availability, and Distributed Resource Scheduler, which have allowed us to administer hardware resources in a better way.
How has it helped my organization?
With High Availability, we have had only one incident where one of the hosts failed, and the VMs were moved immediately. It took about four minutes to complete migration, thus affecting operations minimally.
What needs improvement?
Reporting, and perhaps more DRS-friendly functions.
For how long have I used the solution?
We've used it for almost three-and-a-half years, and previously we were using older versions, such as 2.0.
What was my experience with deployment of the solution?
No, but that is relative. Sometimes issues are raised eventually.
What do I think about the stability of the solution?
No, but it does become difficult to have a standardized infrastructure.
What do I think about the scalability of the solution?
No, but I guess cost is the main obstacle.
How are customer service and technical support?
Customer Service:
So far, good service, but it's managed by our corporate office.
Technical Support:It's good, but it is relative. I have been able to resolve many of our issues using the web.
Which solution did I use previously and why did I switch?
I used to manage an IBM solution - SAN with VMware technology.
How was the initial setup?
It was complex, as the setup and management was not too friendly.
What about the implementation team?
We used a vendor team and the expertise was good, but it could have been better.
What was our ROI?
All I am able to say is that our SLAs have been achieved over the last two years.
What's my experience with pricing, setup cost, and licensing?
This depends on the particular scenarios. Ours is a big one, and requires full stability (Enterprise license). We manage four geographic areas (Mexico, China, Czech Republic and Brazil).
What other advice do I have?
Review the SLAs with customers and provide several options describing cost/benefits to them.
Disclosure: My company does not have a business relationship with this vendor other than being a customer.
Perhaps what you say are in the old version, we switched to 5.5 and 6.0, the main problem encountered calculation for load balancing, and really should invest in SAN Storage Share, VSAN can stability control problem vMotion, HA because as you say "we have had only one incident where one of the hosts failed, and the VMs were moved immediately".
Programmer at a tech company with 1,001-5,000 employees
We're able to to build, test, and take snapshots of VM's on a daily basis.
What is most valuable?
- The out-of-box application works well even without customization.
- vCenter web UI is great.
How has it helped my organization?
I work on it daily and it's easy to build VM's and take snapshots. I can also test the VM's as much as I want.
What needs improvement?
- vCenter web UI has the occasional bug.
- Sometimes it takes a while until the VM responds to a mouse click.
For how long have I used the solution?
I've used it for six months.
What was my experience with deployment of the solution?
None.
What do I think about the stability of the solution?
No.
What do I think about the scalability of the solution?
Haven't yet needed to scale.
How are customer service and technical support?
Customer Service:
Haven't needed customer service.
Technical Support:Haven't needed technical support.
Which solution did I use previously and why did I switch?
No previous solution used.
How was the initial setup?
Straightforward.
What about the implementation team?
In-house.
Which other solutions did I evaluate?
We did not evaluate other options.
Disclosure: My company does not have a business relationship with this vendor other than being a customer.
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I didn't claim it is a good solution or that I used it, I just wrote that there is one.
> you must not have much experience with backup solutions
Interesting conclusion.
Actually, I write the backup solutions I need myself or I implement it using open source software and combining it with own code. This always works, but obviously requires much time.
When it comes down to backing up VMWare and KVM VMs, I used rdiff backup in the past. If the guest is running Linux, I use rsync in combination with some scripts and logic.