We use it for our compute clusters, for running our virtual machines. We use it for our vROps clusters. Our customers use it for their compute workloads.
Virtualization Architect at a tech services company with 5,001-10,000 employees
Easy to scale by adding hard drives or servers, but needs replication capabilities
Pros and Cons
- "It is scalable, overall. If you need to add storage, it makes it easy to scale by adding additional hard drives into the existing servers or you can add storage by just adding more servers."
- "I would like to see replication as part of it. I would also like to see direct file access, being able to run SIF shares and NFS and the like. I think that would be critical to continuing the use of it going forward."
- "One of the things that we've had challenges with are when we place hosts into maintenance mode. Sometimes doing so triggers large re-sync processes which can be time-consuming and which have, at times, pushed the capacity to the threshold. I definitely think making some changes in that area would provide some big improvements."
What is our primary use case?
What is most valuable?
It is scalable, overall. If you need to add storage, it makes it easy to scale by adding additional hard drives into the existing servers or you can add storage by just adding more servers.
What needs improvement?
I would like to see replication as part of it. I would also like to see direct file access, being able to run SIF shares and NFS and the like. I think that would be critical to continuing the use of it, going forward.
One of the things that we've had challenges with is when we place hosts into maintenance mode. Sometimes doing so triggers large re-sync processes which can be time-consuming and which have, at times, pushed the capacity to the threshold. I definitely think making some changes in that area would provide some big improvements.
For how long have I used the solution?
One to three years.
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What do I think about the stability of the solution?
Overall, it's stable. When it's designed properly for the proper workloads, it's a very stable product. We had some challenges, initially, with getting the workloads aligned to the proper storage policies and configurations, but since we worked through that it has been very stable.
How are customer service and support?
Technical support is getting better. We've been using vSAN for a couple of years now. Initially, it was a little more challenging, but it seems like GSS is scaling up as well and, perhaps, learning the product along with us, at times. But overall, they do a great job in giving us support when we need it.
How was the initial setup?
The initial setup is pretty easy. I would like to have some additional automation wrapped around it. In the earlier versions, PowerCLI was very limited, but as the versions have progressed the modules have progressed as well. It's getting better. I consider it to still be a fairly new product and, over time, it's continually getting better and better.
What other advice do I have?
Properly align your workloads to the storage policies and make sure you know what your workloads are before you leverage vSAN. Have a good understanding of the size of your VMs, the amount of change that they have, and how you are going to be doing maintenance in your cluster. Understand the workload and what you're going to be doing with it before you jump in.
Disclosure: My company does not have a business relationship with this vendor other than being a customer.

Systems Engineer/Partner at a tech services company with 1,001-5,000 employees
Adding new nodes and expanding vSAN forward is simple and non-disruptive for a lot of our customers
Pros and Cons
- "Adding new nodes and expanding vSAN forward is simple and non-disruptive for a lot of our customers."
- "It is easy to find information out there, not only from searching the web, but even the times I have engaged VMware support."
- "I would like more integration with the hardware when it comes to disc types and supporting the newer types of storage."
- "I would like compression and deduplication to be offered for offloading hardware, instead of doing it with software. That would be nice."
What is our primary use case?
We use vSAN because it's a VMware product which integrates with all the other virtualization, and it simplifies hyper-converged environments.
What needs improvement?
- I would like more integration with the hardware when it comes to disc types and supporting the newer types of storage.
- I would like compression and deduplication to be offered for offloading hardware, instead of doing it with software. That would be nice.
For how long have I used the solution?
Three to five years.
What do I think about the stability of the solution?
The latest version is very stable. It had a couple of hiccups in the earlier versions. The deployment and integration were simple, but we did have some bugs that we hit on, which have since been fixed.
What do I think about the scalability of the solution?
Adding new nodes and expanding vSAN forward is simple and non-disruptive for a lot of our customers. It makes it simpler so we are not doing late night deployments, and we can answer the needs of the business immediately.
How is customer service and technical support?
It is easy to find information out there, not only from searching the web, but even the times I have engaged VMware support. We were able to get an engineer within minutes of opening a case who understood vSAN, and they were able to help us out.
How was the initial setup?
The initial setup for vSAN is simple. A couple clicks, we were up and running.
It does takes more time to rack it than to actually configure it.
What other advice do I have?
As far as a software-based, storage control product, it is great. They are staying ahead of a lot of the competition out there. vSan is what a lot of the competition is using.
Disclosure: My company has a business relationship with this vendor other than being a customer. Partner.
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CIO at Dataprev
We're using it to develop both public and private clouds for the Brazilian government
What is our primary use case?
Dataprev has a strategic partnership with VMware and the federal government of Brazil. We're developing a new public cloud and private cloud for the whole government of Brazil.
What is most valuable?
There are so many valuable features.
What needs improvement?
I need some additional features, and to learn more, to develop best practices for the Brazilian federal government.
I would like to see machine-learning. This is the biggest problem because, in Brazil, our federal government doesn't know about moving to the cloud. We have city, state, and federal governments to move to the cloud. Dataprev is beginning the work towards a private cloud and machine-learning would be an important feature, one I really need.
What do I think about the stability of the solution?
I'm really impressed with the stability of vSAN.
What do I think about the scalability of the solution?
My team is starting to develop and make use of the scalability. The team in Brazil is very big in cloud performance but we are just beginning to move into a cloud program.
How are customer service and technical support?
The technical account team works with my team in Brazil, together, whether in London, China, India - many teams working with us in Brazil. I would rate technical support as very good.
Which solution did I use previously and why did I switch?
In Brazil, our strategy is that we need to move to the cloud. But there are federal rules and, connected to the government's strategy, there are some questions with many of the solutions. All governments have a problem moving to AWS, to Google, or to Microsoft. Dataprev's strategy, in the employment of the federal government, is to apply the new features while staying within the principles set by the federal government. All governments have a big problem with many data centers, a lot of code, with auditors, etc. I can't go into our strategy in depth here.
The government decided to move to the cloud but there are many problems with regulations, with agencies' sensitive information. VMware provides primary and strategic development features, in working with us in the federal government.
When looking at vendors the most important criterion for us is trust. We need to be able to trust the vendor, the solution, the whole technical development team, because the technical account manager and other teams work with my team inside my data centers.
How was the initial setup?
I can't comment on the initial setup.
What other advice do I have?
I rate vSAN a 10 out of 10 because the VMware team works with my team to develop a better, more timely response. We have made improvements for the federal government. We have been working with VMware for almost 15 years
Disclosure: My company does not have a business relationship with this vendor other than being a customer.
Senior Systems Engineer at a transportation company with 1,001-5,000 employees
NVMe makes it very fast and the ease of use helps our ops group
What is our primary use case?
We use it for our management cluster. All of our network services are on this cluster, on vSAN. That way, it's off the production network, it's off by itself. We have four nodes in case there is an issue with it, it has the failover capabilities.
The performance is very good. We have NVMe performance in it so it's very fast.
What is most valuable?
The most valuable features are being able to keep it off by itself and the ease of use.
What needs improvement?
We have been talking to VMware about things we'd like to see and I think they have done them in their 6.6 release. I don't think we need any more enhancements at this time.
For how long have I used the solution?
One to three years.
What do I think about the stability of the solution?
The stability is very good. We have some HCI solutions like this in our environment and this one is on par with those solutions.
What do I think about the scalability of the solution?
The scalability is very good. If we know that we need more CPU, more memory, we can add more nodes to it. We don't need to do that today but we know, tomorrow, that we have that capability.
How are customer service and technical support?
We have a VMware TAM and they have helped us out with technical support. We haven't needed to call support. Things have been very smooth, no issues whatsoever.
Which solution did I use previously and why did I switch?
We knew from doing the DR project and from having some issues with our production vSphere that we needed some type of solution to help us out, to keep it off the production network. But we did not have a product before this one. This is a new product for us.
For us, the most important criteria when selecting a new vendor are
- ease of use, because we have an operations group that we need to worry about
- cost is always up there
- the future of it - making sure it has a future because we hate to get something and then, after a year or so, it goes out-of-support and no one is using it anymore and there are no upgrades.
How was the initial setup?
The initial setup was a little complex. We did it a couple of years ago and we've heard that it is so much easier now. I know that they are working on that capability right now.
What was our ROI?
I don't see this solution as an ROI type of thing. We tried to do it as a DR solution, or for making sure that it's a solution that is off by itself. At this point, cost was not a major factor for this.
Which other solutions did I evaluate?
We were using Dell and then we had a Dell EMC box, a hybrid. But it was a lot more money and it seemed we would always be a version behind. But with this one, the vSAN that we chose, we can upgrade it as needed. We can always be at the latest and greatest.
What other advice do I have?
Make sure you use a solution that is supported. There are a lot of companies out there that are new and sometimes they don't have a life. We have been in that situation before where we have bought something and then it has gone end-of-life or no more support. Make sure you get a solution that is going to be supported for five to seven years, such as vSAN.
I would rate it at nine out of 10. I know it's very young and that they're growing it or doing a lot of updates to it, so I'm thinking it will be a 10. It's just very new to us. To make it a 10 will take some time.
Disclosure: My company does not have a business relationship with this vendor other than being a customer.
Manager at IRSANE TECH
It is easy to use. Raw disk and block disk could use improvement
What is our primary use case?
Virtual Desktop.
How has it helped my organization?
Easy to use.
What is most valuable?
Horizon VDI
What needs improvement?
Raw disk and block disk.
For how long have I used the solution?
One to three years.
Disclosure: My company does not have a business relationship with this vendor other than being a customer.
Integration & IT at a energy/utilities company with 11-50 employees
The migration of servers feature makes server rack maintenance easy
Pros and Cons
- "The migration of servers feature makes server rack maintenance easy."
- "The server files are larger than before."
- "It is a memory intensive app."
What is our primary use case?
VMware was used to manage multiple servers in a DMZ for an eCormerce service (Coy). VMware made the server management, migration and backup/maintenance efficient.
How has it helped my organization?
The management of servers was easy from a central standpoint. The server rooms were less cluttered as servers were virtual and easy to manage.
What is most valuable?
The migration of servers feature makes server rack maintenance easy.
What needs improvement?
It is a memory intensive app, which should be improved. Also, the server files are larger than before.
For how long have I used the solution?
Three to five years.
Disclosure: My company does not have a business relationship with this vendor other than being a customer.
Works at a university with 1,001-5,000 employees
It is easier to deploy than the traditional SAN
Pros and Cons
- "It is easier to deploy than the traditional SAN."
- "Dedupe in non flash drives can be improved."
What is our primary use case?
We are thinking of using vSAN instead of the traditional SAN. We are just starting to explore how vSAN can benefit us.
How has it helped my organization?
This is not yet deployed, we are just starting to explore how vSAN can benefit us. it seems very expensive to obtain a vSAN license.
What is most valuable?
Based on my findings, it seems easier to deploy than the traditional SAN. I was told vSAN can be deployed in a few minutes.
What needs improvement?
Dedupe in non flash drives can be improved. The raw capacity for PFTT two is only able to use 67% of the raw capacity.
For how long have I used the solution?
Trial/evaluations only.
Disclosure: My company does not have a business relationship with this vendor other than being a customer.
System Specialist at Techedge
All the features are working great
Pros and Cons
- "All the features are working great."
- "Only the stretched cluster requires a minor improvement."
What is our primary use case?
Our primary use case is server workload and mission critical work.
How has it helped my organization?
It has improved our organization in all situations.
What is most valuable?
All the features are working great.
What needs improvement?
Only the stretched cluster requires a minor improvement.
For how long have I used the solution?
One to three years.
Disclosure: My company does not have a business relationship with this vendor other than being a customer.

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