From what I saw, you can create the SAN in a small environment, and then grow. That’s a valuable feature of VSAN and makes it cost effective.
Director Storage and System Architect at a comms service provider with 1,001-5,000 employees
It's a cost-effective solution for medium-sized IT organizations because you can start small and then grow as needed. However, it had stability issues during my testing period.
Pros and Cons
- "From what I saw, you can create the SAN in a small environment, and then grow, which is a valuable feature of VSAN and makes it cost effective."
- "I was not sure about its stability because we have a big SAN shop and I got the impression that it’s good for small offices and not the larger ones."
What is most valuable?
How has it helped my organization?
It's cost effective because you can start small and grow as needed.
What needs improvement?
From my experience testing it, VSAN could be more stable.
For how long have I used the solution?
We tested it for about three months.
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What do I think about the stability of the solution?
I was not sure about its stability because we have a big SAN shop and I got the impression that it’s good for small offices and not the larger ones.
What do I think about the scalability of the solution?
The scalability seems ok – I would give it 6/10 because in a traditional SAN you can go up to a few terabytes. However with VSAN, it seems you can only get a couple hundred terabytes, and I expected more.
How are customer service and support?
We haven’t had a chance to use it for VSAN, but in general we've had pretty good support from VMware, so I think VSAN tech support will also be good.
What about the implementation team?
We haven’t fully implemented, but it should be simple and straightforward.
What was our ROI?
We will implement it by ourselves without a vendor team.
Which other solutions did I evaluate?
We looked into Dell and Nutanix, and chose VSAN because of ease of setup.
What other advice do I have?
Customer support, the actual technology, how robust or stable it is and the ease of deployment are the criteria too look for when selecting a vendor.
I would say that if you’re a medium IT organization and looking for a cost effective solution, VSAN is worthwhile; but, if you’re a bigger environment, I would go with a bigger SAN like EMC, NetApp, and IBM.
Disclosure: My company does not have a business relationship with this vendor other than being a customer.
Senior Advisor IT Architecture for Cloud Computing Solutions at a tech services company with 10,001+ employees
We didn't need a special network or any hardware -- just add a new NIC. Backups are not easy, however, as it's distributed storage and you must be careful not to make a host unavailable.
Pros and Cons
- "All-flash gives improved performance over hybrid, and competes with other solutions"
- "I tried to install it on one cluster and the host got stuck."
Valuable Features
- Easy to set up
- Very Fast
- Good investment
- Surprised at beta ration
- Works very well
Improvements to My Organization
- Price
- We don’t need special network or hardware, just add a new network card
- If you have 10GB, you can just go with vSAN
- All-flash gives improved performance over hybrid, and competes with other solutions
- If combined with Horizon, it lowers the price of solution
Room for Improvement
- Better integration with VMware DOS
- vBackup with vSAN is not so easy, because it's distributed storage so must be careful not to make host unavailable.
Deployment Issues
I tried to install it on one cluster and the host got stuck.
Stability Issues
Awesome stability.
Scalability Issues
- Awesome scalability, especially when combined with vSphere 6
- With vSphere 5.5, limited scalability
Customer Service and Technical Support
- In beta, no technical support
- Great fourm support
Initial Setup
Very easy, just a few clicks. You don’t need special knowledge of storage .because it can be fully automated or you can set it manually if you want
Other Solutions Considered
There are a few products on the market. vSAN has lots of competitors, but if you want to play with a single software provider, go with vSAN. However, if you want more hardware, maybe go with Nutanix.
Other Advice
They lose points because its tricky to fully understand.
Disclosure: My company has a business relationship with this vendor other than being a customer. We're a partner
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May 2026
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Cloud Architect Leader at a aerospace/defense firm with 10,001+ employees
We can scale as needed since we're not required to buy an entire monolithic solution up front, though I'd like to see software-based disk-level encryption in the next release.
Pros and Cons
- "The ability to scale as you need – we can start with a very small footprint as opposed to a monolithic storage solution where you buy the entire solution up front."
- "It's not quite there yet. We've had a few outages that were addressed."
Valuable Features
The ability to scale as you need – we can start with a very small footprint as opposed to a monolithic storage solution where you buy the entire solution up front. We use everything – Hitachi, NetApp, but we're using it more and more because we can start small and scale as you need. Cost saving essentially.
Room for Improvement
I would like to software-based disk-level encryption in the next release. We deal a lot with the Department of Defense, and arms and munitions government-regulated stuff, so we would like to see more. From their roadmap, I see its coming but it has been an impediment.
Stability Issues
It's not quite there yet. We've had a few outages that were addressed. It's not 100% there yet -- give it another six months.
Scalability Issues
Scalability is why were using it – especially with v6. Any scalability issues we had, were addressed.
Customer Service and Technical Support
It was excellent. The response time was great, and as we're a large customer so we had no issues.
Initial Setup
Initial setup was not difficult to do at all.
Implementation Team
We implemented on our own.
Other Solutions Considered
We have played with Nutanix but it wasn’t there yet – VSAN is more attractive because it operates kernel level, as opposed to Nutanix.
Picking a vendor also depends on which segment is looking – I run most of the IT stuff and to me peer reviews are very important. Others within our company look to Gartner.
Other Advice
I would say that the main reason its attractive is that you can grow as you need. The other thing that makes it especially attractive is that from an IO perspective, VSAN has the better ability to perform more efficiently because it operates within the hypervisor. It's VMWare specific so that can be a downside. But for pure VMWare shops, VSAN is the best option in my opinion.
Disclosure: My company does not have a business relationship with this vendor other than being a customer.
Network Engineer at a healthcare company with 1,001-5,000 employees
We're able to integrate it with vSphere, bringing speed and security to our patient-sensitive data system. And while it's scalable, I've yet to test its stability extensively.
Pros and Cons
- "From what I’ve seen it’s extremely scalable."
- "I love VMware – it’s allowed us to virtualize our server infrastructure, but I haven’t tested the stability of VSAN extensively yet."
Valuable Features
- The integration with other VMware solutions, such as vSphere, is valuable for us.
- It's also fast -- faster than hybrid and all-flash setups.
- Three-host configuration provides security.
Improvements to My Organization
I think that it brings speed and security as we have patient-sensitive data that we need to store.
Deployment Issues
N/A
Stability Issues
I love VMware – it’s allowed us to virtualize our server infrastructure, but I haven’t tested the stability of VSAN extensively yet.
Scalability Issues
From what I’ve seen it’s extremely scalable.
Customer Service and Technical Support
VMware is top notch, but I can’t evaluate yet for VSAN.
Other Advice
You should look at scalability and integration withing the vSphere environment.
Disclosure: My company does not have a business relationship with this vendor other than being a customer.
IT Manager with 1,001-5,000 employees
We have three hosts in a single cluster that provides us centralized storage with High Availability, although the hardware compatibility list should be expanded.
Pros and Cons
- "It has lowered our storage costs while still maintaining High Availability and offers easy installation."
- "Expand the hardware compatibility list – it's pretty short. Definitely also the diagnostic and monitoring could be improved."
Valuable Features
- It's very simple to use.
- It work on commoditized hardware.
- It provides centralized storage.
Improvements to My Organization
It's lowered our storage costs while still maintaining High Availability and with easy installation.
Room for Improvement
Expand the hardware compatibility list – it's pretty short. Definitely also the diagnostic and monitoring could be improved. That stuff is still very new.
Use of Solution
We have been using it since it came out in March 2015.
Stability Issues
So far so good.
Scalability Issues
Unsure – all I know is what I read, if it does what it says it does I'm very impressed.
Customer Service and Technical Support
Very good – quality support.
Initial Setup
We have three hosts in a cluster, and it was surprisingly easy.
Other Advice
Try it out – that’s the best way to know whether it's right for your organization.
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's fast, software designed storage that costs less than an all-flash array. We're expecting some improvements, but at the moment you have to store every object on multiple disks to protect it.
Pros and Cons
- "I think you should try it – it's really stable and valuable and helps to drill your costs down."
- "We are seeing some improvements coming up, but at the moment you have to store every object on multiple disks to protect it, and they should be better distributed over disks to help parity."
What is most valuable?
It's fast – it’s really blazing fast.
How has it helped my organization?
It saves us the expense of an all-flash array. All-flash would work for us, but VSAN is cheaper. I think that this solution is really new, but it has real benefits over all-flash arrays.
What needs improvement?
We are seeing some improvements coming up, but at the moment you have to store every object on multiple disks to protect it, and they should be better distributed over disks to help parity.
What do I think about the stability of the solution?
It's very stable – we have had no failures.
What do I think about the scalability of the solution?
It’s really scalable in terms of both capacity and performance, at least for our needs.
How are customer service and technical support?
We haven’t had to use it – the product is really stable.
Which solution did I use previously and why did I switch?
We were using a traditional storage array from Dell and we will see more VSAN usage in the future.
How was the initial setup?
The initial setup was a little bit complicated because we have to do everything from scratch. It’s a new world, and much easier in the newer releases.
Which other solutions did I evaluate?
We looked at other vendors – classic storage vendors – but we thought this direction was faster as things are moving towards a software designed storage.
What other advice do I have?
I think you should try it – its really stable and valuable and help to drill your costs down.
Disclosure: My company does not have a business relationship with this vendor other than being a customer.
Storage and Virtualization Engineer at a university with 501-1,000 employees
As older ESXi hosts are phased out, you can replace them with vSAN and add more nodes, although it lacks deduplication features.
Pros and Cons
- "The ability to scale out incrementally instead of doing a big five year capital expense purchase that hurts the budget."
- "There are some minor things wrong, but its potential value could far overshadow its current weaknesses."
Valuable Features
The ability to scale out incrementally instead of doing a big five year capital expense purchase that hurts the budget. Vith vSAN, you buy x86 servers and you're done, and you can scale up.
Improvements to My Organization
The cost. VSAN allows us to do storage cheaper and better than before.
Room for Improvement
Deduplication feature is needed, and I'm thinking maybe it needs a lot of nodes to store all redundant data. This will be addressed in their next beta version.
Stability Issues
Assuming we get policies set up where they need to be, it's a stable technology. It's distributed architecture is slick, and will hold up.
Scalability Issues
First and foremost, it offers a different way to scale, it’s smaller and easier to digest in smaller bites. As older ESXi hosts are phased out, you can replace with VSAN and add more nodes. Very incremental approach.
Customer Service and Technical Support
I've never had to use it.
Other Advice
It feels forward thinking and I can see this as big game changer, which is exciting, but it's only one-and-a-half-years old -- a toddler. There are some minor things wrong, but it's potential value could far overshadow it curent weaknesses, Currently we don’t have NSX, and that could be a pivotal thing, but we don’t have that licensing yet.
Disclosure: My company does not have a business relationship with this vendor other than being a customer.
Virtualization & Storage Administrator at Franklin University
You can buy x86 servers as needed and scale up from there instead of buying more arrays and shelves than needed, although there are gaps in the management platforms.
Pros and Cons
- "We had a directive from the CIO to check out and play with VSAN and then to do storage cheaper and better than before, which we have achieved."
- "The management platforms have some gaps. It's difficult to see what's going on with the hardware at times."
Valuable Features
The ability to scale out incrementally instead of doing a big five year capital expense purchase that hurts the budget.
In the storage world, when it's time to buy an array, you buy half that are to be populated, and you buy more disk shelves, but it's not cost effective. Or, you buy it all and don’t use some. But with VSAN, you buy x86 servers as needed and you're done, and you can scale up.
Improvements to My Organization
The cost. We had a directive from the CIO to check out and play with VSAN and then to do storage cheaper and better than before, which we have achieved.
Room for Improvement
The management platforms have some gaps. It's difficult to see what’s going on with the hardware at times. The only platform available doesn’t run full time, and there is a management pack but it requires a product that not many people have (vRealize Operations). So it could use more work in management areas.
Also, it lacks deduplication, so we're using a lot more storage than you necessarily need to.
Deployment Issues
Prior to deployment, make sure you check your hardware compatibility prior, along with the drivers and firmware, because any one of those three things can cause an outage.
Stability Issues
It's very stable, but we ran into some early issues with drivers and firmware, but this is resolved now. You must be careful to be coverd in that respect, otherwise you will have issues.
Scalability Issues
We’re scaling in a very phased process, running dev test environment with just a small three node cluster, but gradually shifting.
Customer Service and Technical Support
I've never had to use it.
Initial Setup
It was pretty straightforward, but we had some issues with drivers, although nothing in the setup. After some time, we were losing some disks that was because of driver issues.
Disclosure: My company does not have a business relationship with this vendor other than being a customer.
Senior Field Support Administrator at a energy/utilities company with 1,001-5,000 employees
We now have the ability to virtualize across multiple data centers and to consolidate more workloads on different types of storage.
Pros and Cons
- "Previously, we couldn’t consolidate more workloads on different types of storage, and now with VSAN, we have the ability to virtualize across multiple data centers."
- "Try it and evaluate it – it's not a fit for every company, but you should at least do an evaluation to see if it is a fit."
How has it helped my organization?
Previously, we couldn’t consolidate more workloads on different types of storage. Now with VSAN, we have the ability to virtualize across multiple data centers.
What needs improvement?
It's currently doing everything we've ask of it and it meets all our needs right now. To be honest, I don’t think too much about the future of the product or what we might need it to do as our requirements change.
What do I think about the stability of the solution?
It's got good stability - 10/10.
What do I think about the scalability of the solution?
It's got good scalability - 10/10.
How are customer service and technical support?
Customer Service:
N/A
Technical Support:They are good – the response time is quick. You pay for it, but they are good.
Which solution did I use previously and why did I switch?
No previous solution was used.
How was the initial setup?
It was simple and straightforward.
What about the implementation team?
We've implemented it both on our own and with a vendor team, and it's straightforward with both.
Which other solutions did I evaluate?
No other options were looked, but peer reviews are important. My peer reviews are usually on social media channels, but it's important.
Product knowledge is the most important criteria we look for when selecting a vendor.
What other advice do I have?
Try it and evaluate it – it's not a fit for every company, but you should at least do an evaluation to see if it is a fit.
Disclosure: My company does not have a business relationship with this vendor other than being a customer.
Solutions Architect at Sequel Data Systems
It integrates with other commonly-used VMware tools, but it lacks deduplication and wastes a lot of mass when striping across multiple nodes and vSphere hosts.
Pros and Cons
- "Simple to set up, manage, and integrate it with tools you’re already familiar (vCenter, vClient) with."
- "It loses points because it lacks lots of performance and deduplication abilities that competitors have."
Valuable Features
Simple to set up, manage, and integrate it with tools you’re already familiar (vCenter, vClient) with.
It also gives us a policy-based storage on a per-VM level.
Also if you can apply redundancies to machines, they’re all different.
Improvements to My Organization
- All built within hypervisor
- Easily stood up with hardware you already have
- Truly virtualized storage
- Get rid of all hardware, and you get a much smaller footprint
- Nodes can be in different datacenter, and so can stretch cluster
Room for Improvement
- Good job integrating with vRealize, vCOPS, etc.
- Needs complete integration with vRealize for GUI for drill down analysis
- Would be nice to see features like dedupe because it wastes a lot of mass when striping across multiple nodes and vSphere hosts.
Stability Issues
Some difficulty finding compatible hardware, but if you follow the HCL provided by VMware. and make sure you're buying the correct nodes, storage devices, and SSD’s that are all supported, then it’s a stable product. Even if you have problems, it's still only one phonecall.
Scalability Issues
It supports up to 64 nodes so huge scalability.
Customer Service and Technical Support
As a VMware customer for many years, sometimes it takes a few calls, but they have some brilliant people who can solve difficult technical problems.
Initial Setup
- Setup just a few clicks after hardware all connected, “pretty stupid easy”.
- Customers can test and validate without going out and buying vSAN ready nodes.
Other Advice
It loses points because it lacks lots of performance and deduplication abilities that competitors have.
Disclosure: My company has a business relationship with this vendor other than being a customer. We're a partner.
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Updated: May 2026
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