We use it for a virtualization environment based on VMware vSphere.
Consultancy Department Chief with 201-500 employees
Stability and scalability have completely satisfied our requirements
Pros and Cons
- "The most valuable features include snapshots, Thin Clones, and deduplication and compression."
- "It could be improved in the area of management flexibility. For example, I really need to set read-only access for LUNs, and there's no such option with Unity XT."
What is our primary use case?
What is most valuable?
The most valuable features include
- Snapshots
- Thin Clones
- Deduplication and compression.
What needs improvement?
It could be improved in the area of management flexibility. For example, I really need to set read-only access for LUNs, and there's no such option with Unity XT.
I would also like to see more support for object storage for S3. NetApp includes basic support for S3 to the on-top array, so it would be great if DELL EMC would include S3 for the Unity XT.
For how long have I used the solution?
I have been using Dell EMC Unity XT for three years.
Buyer's Guide
Dell Unity XT
March 2025

Learn what your peers think about Dell Unity XT. Get advice and tips from experienced pros sharing their opinions. Updated: March 2025.
841,152 professionals have used our research since 2012.
What do I think about the stability of the solution?
The stability has completely satisfied us.
What do I think about the scalability of the solution?
The scalability has also satisfied us. We use it extensively. We purchased an expansion last year and added about 150 terabytes and we're going to purchase another expansion next year. We plan to use it until the end of support.
The services on the Unity storage are used worldwide in our organization. We have about 1,500 employees.
How are customer service and support?
Dell EMC's technical support is perfect.
How was the initial setup?
The initial setup was completely straightforward. Anyone who can handle "next, next, next, finish" can deploy Unity. It was deployed within half an hour.
We installed it, connected it to fabric, updated the software, went through the initial configuration dialogue, and that was it. Most of the time in getting it up and running was spent on the data migration.
For deployment and maintenance it requires just one person. In our organization that person is our storage and virtual infrastructure administrator.
What about the implementation team?
We did it ourselves.
What other advice do I have?
It's a great product if it fits your specific needs.
Which deployment model are you using for this solution?
On-premises
Disclosure: I am a real user, and this review is based on my own experience and opinions.

Lead Manager at a tech services company with 51-200 employees
It has sped up our entire architecture
Pros and Cons
- "It has made deployment, configuration, and maintenance a lot simpler."
- "The initial setup is not so straightforward if you don't have experience with storage arrays."
What is our primary use case?
We use the Unity to back-end our VMware virtual stack. We run VMware vSphere on it. It's a hypervisor, and that is what we are required to run all our VMs for both Horizon and our internal services.
How has it helped my organization?
We were having significant latency with our old storage arrays. With Unity's flexibility of block and file storage, we were able to start with file storage, then plan eventually moving to block storage. So, it has sped up our entire architecture.
What is most valuable?
Speed and ease of use of the interface are its most valuable features.
The Unity interface is much more advanced than some of the older ones that we had, or that I've experienced. It has made deployment, configuration, and maintenance a lot simpler.
For private cloud, it works very well.
What needs improvement?
There were a couple features that came out a little later than we originally believed, but they did come pretty much on time and met our schedule.
For how long have I used the solution?
We are still trying to get all our features deployment right now.
What do I think about the stability of the solution?
Like any other storage array, SAN, or NAS, it is very reliable. We haven't had any issues with it.
What do I think about the scalability of the solution?
We know that we can add another whole tray or two of disks if we need to. We started with a high-density to begin with, but we knew we had significant space to expand when we needed it.
It has exceeded our performance expectations. We were expecting an improvement, but we were expecting to eventually in the short term come close to hitting capacity on it, and we haven't. Performance-wise, it's held up very well.
How are customer service and technical support?
The support that we get for Dell EMC storage has been fantastic.
Which solution did I use previously and why did I switch?
We were previously using NetApp, and we were at the limit of our old equipment. We were running older file storage, which was causing us a bunch of latency issues, and the Unity solved most of those problems.
How was the initial setup?
The initial setup is not so straightforward if you don't have experience with storage arrays.
What about the implementation team?
We used a Dell EMC consultant for the deployment. The experience was good.
What was our ROI?
The return on the investment was simply speeding up our entire vSphere stack, which allowed our developers and engineers to get their workloads done faster and simpler. We were experiencing VM snapshot times of 45 minutes to two or three hours, and it shrunk it down to under five minutes.
Which other solutions did I evaluate?
Based on the cost and performance the we needed, Unity was the best price. NetApp was not being price competitive.
What other advice do I have?
If you're looking for a cost-effective, easy to use solution, which has scalability on a small-to-medium deployment, Unity is a very good solution for this.
We are planning to use replication very soon, and we do use snapshots.
We've been very happy.
Disclosure: My company has a business relationship with this vendor other than being a customer: Partner.
Buyer's Guide
Dell Unity XT
March 2025

Learn what your peers think about Dell Unity XT. Get advice and tips from experienced pros sharing their opinions. Updated: March 2025.
841,152 professionals have used our research since 2012.
Storage and System Engineer at Thales Services SAS
Has CloudIQ integration, but storage groups are no longer available
What is our primary use case?
We bought a couple of 450F and 650F to replace our ageing VNX family. The primary use case is for block storage, and VMware for our tier-2 applications.
How has it helped my organization?
Moving away from Java-based Unisphere to the HTML5 version of Unity is a huge improvement for our day-to-day management. We are still in the process of getting things in place, but at this stage, I can say the configuration is pretty straightforward and doesn't require additional training to learn the product.
Moving also from a hybrid to an all-flash array helped us to minimize footprints in our data centers. It's like two racks of VNX 8000 down to a quarter rack of Unity 650F.
What is most valuable?
- New HTML5 GUI: It's really fast and works well on your favorite browsers.
- Data reduction: We haven't seen the actual benefits, but with this feature, we are expecting to gain maximum efficiency.
- CloudIQ integration: This provides really useful data and analysis.
What needs improvement?
- Storage groups are no longer available in Unity so you will have some challenges if you managed quite a huge environment in provisioning perspective.
- Domain management is also gone in Unity. This is not an issue if you are managing less than two of this, but in our case, we have a number of this array around the globe.
- All models are limited up to two I/O modules per SP giving you fewer front-end ports compare to higher VNX models.
- Unisphere Central is not so useful as we expect. This will provide a centralized management of our arrays, but it ends up giving you only some numbers and figures for you to report to your management.
For how long have I used the solution?
Less than one year.
Disclosure: I am a real user, and this review is based on my own experience and opinions.
VP IT at a manufacturing company with 1,001-5,000 employees
Good performance for the price point, easier to administer than some of the alternatives
Pros and Cons
- "The most valuable feature is the performance. It's still an all-flash array at a good price point."
- "It needs deduplication. We'd like to have the dedupe capabilities in the Unity."
What is our primary use case?
We were looking for an option for an all-flash array with a lower cost than the XTremIO.
How has it helped my organization?
It's easier to administer than some of the alternatives that we had. The teams find it easy to manage. We're a big EMC shop anyway, so for us it was just a lower-tier alternative at a good performance point for the price.
We are leveraging its integration with other applications and there were no significant costs to do so.
What is most valuable?
The most valuable feature is the performance. It's still an all-flash array at a good price point.
What needs improvement?
It needs deduplication. We'd like to have the dedupe capabilities in the Unity.
For how long have I used the solution?
One to three years.
What do I think about the stability of the solution?
It's very stable. No issues with it.
What do I think about the scalability of the solution?
It's been acceptable in terms of scalability as well. We've found that it's easy to expand and not too expensive.
How is customer service and technical support?
Dell EMC, generally, is good from a technical support perspective. We really never have issues.
What was our ROI?
It's hard to say what our ROI is. We don't do a lot of hard ROI.
What's my experience with pricing, setup cost, and licensing?
The pricing is competitive. We miss some of the feature functionality that we had with the XtremeIOs but it's certainly suitable for the purpose.
What other advice do I have?
Weigh your options. The landscape has changed a lot since we bought it, it's been a couple of years. It's a good product but you will certainly want to survey the landscape.
The most important criteria when choosing a vendor include the longevity of the product, certainly ongoing support as well. I've got a good relationship with Dell EMC, we like the product. If I'm not mistaken it was based on the VNX platform; it's basically an all-flash version. We had some familiarity with it and the all-flash piece was very compelling.
I would rate it at eight out of ten. There are just a few features that we'd like to see at that price point. But generally, it has been pretty stable.
Disclosure: I am a real user, and this review is based on my own experience and opinions.
Manager Storage And Back Up at a manufacturing company with 1,001-5,000 employees
All-flash compression, NAS features, and stability are key for us
Pros and Cons
- "It's an all-flash Unity, With that compression feature, it's comparable to a hybrid. That is one thing that we definitely like."
What is our primary use case?
We added it to our Vblock 740 as a storage extension, basically a tech extension for a capacity upgrade. We set it up about three weeks ago. I haven't seen any issues so far.
What we noticed was that the SP utilization is quite high, although the main load is on a VMAX. We'll need to dig into it with EMC and see if there are any issues that might pop up.
What is most valuable?
The setup was quite easy, straightforward.
Compression, it's an all-flash Unity, so with that compression feature, it's comparable to a hybrid. That is one thing that we definitely like.
For how long have I used the solution?
Less than one year.
What do I think about the stability of the solution?
It runs. No stability issues.
What do I think about the scalability of the solution?
If those SP utilization things, noted above, get to be an issue, I think scalability might be an issue too. But we need to confirm that. I don't know yet.
How are customer service and technical support?
We had a licensing issue to do with encryption but, other than that, we have not had to use tech support. It took a little bit, support had to get it into our ELA. It worked out in the end.
Which solution did I use previously and why did I switch?
Obviously, it is the successor of the VNX. We wanted to add some mid-range capabilities to that Vblock 740 and it was the logical choice.
In terms of selecting a vendor, we're a big EMC partner, so we don't usually look at other vendors. We have very good experiences with EMC support so far. We are currently not looking at other vendors.
What other advice do I have?
It is definitely worth having a look at. The price-point for all-flash is certainly quite interesting. It has NAS capabilities too, if you need it. It's an interesting product, at least for mid-range.
Disclosure: I am a real user, and this review is based on my own experience and opinions.
Director, Solution Architecture at a tech company with 501-1,000 employees
Provisioning is very simple, the system yields an improved footprint
Pros and Cons
- "It is scalable. Customers are going more into distributed architecture, so the Unity definitely has a scalable architecture built into that."
- "Inline dedup compression security is coming up as an issue, encryption, etc. is key for our customers. If we could have more ways to do software-based encryption, those are the features customers are asking us for, as well as replication."
How has it helped my organization?
The biggest improvement is the data reduction for the organization. That is where they see the better TCO and improved ROI for their existing footprint. That's the biggest advantage for the businesses that are using the Unity platform.
What is most valuable?
The features that customers are looking for, because I do a lot of architecture work, is the management simplicity. The provisioning is very simple in the Unity platform, as well as the reporting structure back to the customer. They get to know end-to-end visibility in the system environment.
What needs improvement?
Inline dedup compression security is coming up as an issue, encryption is key for our customers. If we could have more ways to do software-based encryption, those are the features customers are asking us for, as well as replication.
For how long have I used the solution?
One to three years.
What do I think about the stability of the solution?
The maturity level of the Unity is getting better and better as we speak. The latest and greatest cores are becoming more stable than the previous one. EMC is doing a lot of investment in research and development. They're getting better and better.
What do I think about the scalability of the solution?
It is scalable. Customers are going more into distributed architecture, so the Unity definitely has a scalable architecture built into that. Scale-out architecture, scale-up architecture.
How are customer service and technical support?
There is a lot of room for improvement on the support side, because of the response time. I'm giving the customer feedback. Customers are coming to me as their architect, as a level-1, level-2, they're asking me. The response from the EMC is not there yet. We are sending the same feedback back to EMC, to improve the support line.
Which solution did I use previously and why did I switch?
We started with the VNX platform. I have a very good understanding of the EMC portfolio from Centera, from NS, VNX, VNXE, and then VMAX.
How was the initial setup?
Setup is very easy. Absolutely. It's easy to build the environment. That has improved a lot.
What's my experience with pricing, setup cost, and licensing?
At the end of the day, the licensing cost is key, because every customer has a pain point, that the cost of each piece is high. So if we can bundle everything in a package, that is how the competitors are selling their footprint. For example, Pure, if you buy a box, everything comes with the box. So, in a similar fashion, if we can do anything along those lines, it will be better for the customer.
What other advice do I have?
I give it an eight out of 10, because there is definitely room for improvement, for EMC to invest in it.
Disclosure: I am a real user, and this review is based on my own experience and opinions.
Vice President at a financial services firm with 10,001+ employees
Some of the valuable features are reporting and the replication of the COB scenarios.
Pros and Cons
- "Replication of the communication object (COB) scenarios"
- "The EMC VNX Virtual Data Mover (VDM) software needs more improvement."
How has it helped my organization?
It has increased the reliability in our organization and it is cost effective.
What is most valuable?
- Replication and reporting
- Replication of the communication object (COB) scenarios
What needs improvement?
The EMC VNX Virtual Data Mover (VDM) software needs more improvement.
What do I think about the stability of the solution?
There were no stability issues.
What do I think about the scalability of the solution?
We did not encounter any scalability issues.
How are customer service and technical support?
I would give technical support a rating of 9/10.
Which solution did I use previously and why did I switch?
Previously, we were using the EMC VNX solution and I am still using it.
How was the initial setup?
The setup was straightforward. It is just simple clicks. You just need to follow the manuals and the instructions.
What's my experience with pricing, setup cost, and licensing?
This product is cheaper than the EMC VNX solution. It is good for small businesses.
Which other solutions did I evaluate?
We evaluated other solutions, namely Nutanix and NetApp.
What other advice do I have?
- EMC is known for its reliability
- This product is good
- It is easy to install and maintain
- It operates with low maintenance and manpower costs
Disclosure: I am a real user, and this review is based on my own experience and opinions.
System Engineer at Duke Kunshan University
Easy-to-setup product with good stability
Pros and Cons
- "Its most valuable feature is the storage alarm."
- "Dell Unity XT’s price needs improvement."
What is most valuable?
The product is stable. Its most valuable feature is the storage alarm.
What needs improvement?
Dell Unity XT’s price needs improvement.
For how long have I used the solution?
We have been using Dell Unity XT for five to six years. We are using version 380.
What do I think about the stability of the solution?
I rate the product’s stability nine out of ten.
What do I think about the scalability of the solution?
We have 8000 Dell Unity XT users. I rate the product’s scalability an eight out of ten.
How was the initial setup?
The product has an easy setup process. It requires two people to execute it and takes a day to complete.
What's my experience with pricing, setup cost, and licensing?
I rate Dell Unity XT’s pricing a nine out of ten.
Which other solutions did I evaluate?
We evaluated HP and NetApp.
What other advice do I have?
I rate Dell Unity XT an eight out of ten.
Disclosure: I am a real user, and this review is based on my own experience and opinions.

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Updated: March 2025
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