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Dell Unity XT vs NetApp AFF C-Series comparison

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Comparison Buyer's Guide

Executive Summary

Review summaries and opinions

We asked business professionals to review the solutions they use. Here are some excerpts of what they said:
 

Categories and Ranking

Everpure FlashArray X NVMe
Sponsored
Ranking in All-Flash Storage
18th
Average Rating
9.0
Reviews Sentiment
6.7
Number of Reviews
36
Ranking in other categories
NVMe All-Flash Storage Arrays (6th)
Dell Unity XT
Ranking in All-Flash Storage
5th
Average Rating
8.4
Reviews Sentiment
6.5
Number of Reviews
198
Ranking in other categories
No ranking in other categories
NetApp AFF C-Series
Ranking in All-Flash Storage
28th
Average Rating
8.6
Reviews Sentiment
3.6
Number of Reviews
2
Ranking in other categories
No ranking in other categories
 

Mindshare comparison

As of March 2026, in the All-Flash Storage category, the mindshare of Everpure FlashArray X NVMe is 1.6%, up from 0.8% compared to the previous year. The mindshare of Dell Unity XT is 5.9%, down from 8.2% compared to the previous year. The mindshare of NetApp AFF C-Series is 0.6%, up from 0.1% compared to the previous year. It is calculated based on PeerSpot user engagement data.
All-Flash Storage Mindshare Distribution
ProductMindshare (%)
Dell Unity XT5.9%
Pure FlashArray X NVMe1.6%
NetApp AFF C-Series0.6%
Other91.9%
All-Flash Storage
 

Featured Reviews

Jaehoon Oh - PeerSpot reviewer
Chief Technology Officer at Lambda256
Supports efficient storage management through volume snapshots and offers reliable non-disruptive upgrades
I have no specific improvements to suggest for Pure FlashArray X NVMe at this time. The performance statistics could be enhanced. I can see the performance statistics in the Pure Storage console, but it does not show the performance by 4K byte unit. It displays IOPS and bandwidth, but IOPS is about real use, and I want to know how many IOPS are currently running in 4K byte units. I cannot see that IOPS because most storage systems report their performance by 4K byte unit. I want to see Pure Storage performance by 4K byte unit to compare with other storage or other internal NVMe SSD.
DK
Sales Account Manager - BFSI Sector at Frontier Business systems
Customer needs are addressed effectively with collaborative sales and service support
Recently, customers have been asking for a cloud tiering option in storages. Some Dell storages do not have cloud tiering, which is an optional commercial feature. NetApp's FSA model 2750 comes with an inbuilt cloud tiering option. In the future, if Dell storages include this option, especially for Unity, it would help us target SME or medium enterprises for quicker closures and support the sales team.
Shailendra Choudhary - PeerSpot reviewer
Solution Architect at a tech services company with 10,001+ employees
Reliable flash storage has delivered strong data reduction and secured sensitive information
There is still some room for improvement when it comes to scalability, mainly in the interoperability and integration aspects. Every storage vendor has certain limitations, and this is not limited to NetApp; it applies to everyone in the industry. I do not see any other significant areas for improvement with NetApp AFF C-Series at this time. NetApp is working on their roadmap, which is solid, and they are developing certain features that are yet to be released.

Quotes from Members

We asked business professionals to review the solutions they use. Here are some excerpts of what they said:
 

Pros

"Using this solution has benefitted us operationally by making us more efficient."
"Offers excellent features like efficient data reduction, a reliable SafeMode, and a great support model for continuous assistance and updates."
"We were able to save a ton of data center space with density ratios we've never seen before with hardware, and with Pure, we immediately saw value in the density ratios that we would be able to achieve, the performance, the scalability, and the support."
"The most valuable feature of this solution is its ease of use."
"FlashArray has some fresh efficiency features. I've never seen a storage solution with a compression rating this high before. It's at least 4-to-1 on Oracle databases. It's the best flash storage for Oracle."
"After the testing, it was clear to us that the Pure FlashArray X NVMe was the easiest to manage and configure and had the best performance that we had seen in all the arrays."
"The solution uses newer technology for deduplication and compression."
"The duplication algorithm allows us to get a lot more use out of less storage. We're running a five terabyte array right now and we're running probably about 30 terabytes on it. So the duplication rate is pretty phenomenal, without a cost to performance. It still runs pretty smoothly."
"At the moment we are using it with VPLEX, which is a very big advantage for us, and although we don't use many of Unity's functions, it provides good provisioning that allows us to save space, and with the all-flash systems it is quite fast."
"I think Dell Unity XT is one of the best options on the market at the moment, although there is some good competition."
"The complete block and file sharing are the most usable features."
"We have integrated it with vSphere and SQL. There were no costs involved outside of our normal workload licensing, no costs that were specific to the Unity platform."
"The most valuable feature is the performance. It's still an all-flash array at a good price point."
"When I have an issue and need technical support, I reach out to them either through chat or by submitting a service request, and the response is good."
"The solution allows for easy, useful replication with good features for VPLEX and VIVO."
"The all-flash feature is really boosting up the VMware. It is helping our virtual machines to perform better."
"NetApp AFF C-Series is a good product for entry-level flash storage, the system is competitive in terms of pricing, and the value proposition is strong."
"NetApp offers a cost-effective solution with very robust hardware."
 

Cons

"I want to see Pure Storage not only be for fast storage, but I want to see it be for the entire data center."
"Adding some functions to the product would be beneficial. Storage replication should be essential, and the analytics should not incur extra charges."
"We've seen that when we create a POD in synchronous mode, it increases the latency."
"One area that I haven't been sold on yet is the POD replication."
"The software layer has to improve."
"Our use cases require more multi-tenant capabilities and additional VLAN interfaces for separating different customers. We currently use it to provide storage, sometimes shared storage, to different customers, but it is less flexible in comparison to a dedicated solution."
"It's more multi-tenant functionality in their Pure1 manage portal that is lacking."
"The tool's portfolio is minimal. It is expensive."
"The storage processors have less port expansion than previous high-end VNX arrays. Data compression is only available in all-flash pools."
"A rating out of 10 out of 10 is a bit too much because, obviously, no product is super perfect, but I would rate the unity a good nine. What might make it a 10 is a better price."
"It might be nice to have more integrated features instead of having everything as a separate module, like the networking. The networking is attached separately in the back. It would be nice if that was more integrated with less ports."
"Maybe deduplication would be something that would be better to have."
"I think Dell EMC should be more careful in appointing partners, and they need to have better control over their partners. And if their partner has some problems with them, we should not suffer."
"The support portal needs fixing. Accessing a service request on the support portal seems to be a bit difficult, as opposed to just calling the 800 number."
"We are running VMware, and with the VNXe it was possible to restore. We're using Veeam for VMware backups and with the predecessor, it was possible to mount a backup or restore a backup from a storage snapshot. With the Unity 300, this is not possible."
"The only challenge I've ever had was with a Drive firmware upgrade."
"We faced one bug that impacted our NetApp last month, and it took some time to identify the underlying issue."
"We faced one bug that impacted our NetApp last month, and it took some time to identify the underlying issue."
 

Pricing and Cost Advice

"Our licensing fees are $500,000+ USD."
"They can tout the functionality and cutting edge technology that they have, but that's where the price tag comes in. The cost is high, but I think as they grow their business and get more customers that it will probably go down a little bit."
"The licensing is on a yearly basis."
"Pure FlashArray X NVMe’s pricing is cheaper than other products."
"With VMware, we pay $300,000 annually."
"Pretty much everything that you need is licensed when you buy the product. Licensing to me is different than the maintenance cost, but they can bleed into one another. We buy the product, and we expect three years of support bundled into what we negotiate on our storage arrays. I would start to see maintenance costs going into the fourth year, but we're not there yet."
"Its price could be better. It is not too expensive, but it is the high-end cost. It is kind of a Rolls-Royce. You pay a lot, but you get a lot out of it. So, the price pressure on the way down would be great, but at the end of the day, if you need to do the work, you just pay for it."
"The support cost per array is about $20,000 a year for 24/7 support."
"We integrated it with VMware vSphere at no additional cost. As we moved into VMware vSphere, this is what we bought to go with it for our storage performance."
"For costing, you have to have a budget in mind because SANs can be fairly expensive and EMC offers a wide range of products."
"I rate Dell Unity XT’s pricing a nine out of ten."
"Our CAPEX was close to $42,000 and operating costs are below $1000."
"We bought extended warranties out of the box because our customer has a bad habit of managing warranties."
"The price of Dell EMC Unity XT is higher compared to other solutions. The price should be less expensive."
"With the large Unity that we bought, it has saved us about one and a half rack space. That's our return on investment on our flash array. We also need less Fibre Channel connectivity."
"What they really like is the easy licensing now - Dell EMC has caught up to a lot of their competitors - based on not having to charge for everything, and they can get everything in one bundle."
Information not available
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Top Industries

By visitors reading reviews
Computer Software Company
11%
Manufacturing Company
11%
Financial Services Firm
10%
Government
6%
Computer Software Company
13%
Manufacturing Company
10%
Financial Services Firm
6%
Comms Service Provider
6%
Manufacturing Company
20%
Financial Services Firm
11%
University
8%
Computer Software Company
8%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business15
Midsize Enterprise11
Large Enterprise12
By reviewers
Company SizeCount
Small Business62
Midsize Enterprise49
Large Enterprise94
No data available
 

Questions from the Community

What do you like most about Pure FlashArray X NVMe?
Pure FlashArray X NVMe helps to improve our processing speed. It is user-friendly and easy to use.
What is your experience regarding pricing and costs for Pure FlashArray X NVMe?
The price of Pure FlashArray X NVMe is very expensive, though I do not know the actual price because I am using the E...
What needs improvement with Pure FlashArray X NVMe?
I have no specific improvements to suggest for Pure FlashArray X NVMe at this time. The performance statistics could ...
What is the Biggest Difference Between Dell EMC Unity and NetApp AFF?
I saw that you have doubts about what you chose. I have a lot of experience with the constructor, honestly I can reco...
What is the Biggest Difference Between Dell EMC Unity and NetApp AFF?
They’re both great solutions and I’ve used both. EMC is being VERY aggressive on pricing which may be the undoing of...
What is the Biggest Difference Between Dell EMC Unity and NetApp AFF?
First of all the decision should be taken looking at similar products in terms of capacity and performance. I will sh...
What needs improvement with NetApp AFF C-Series?
There is still some room for improvement when it comes to scalability, mainly in the interoperability and integration...
What is your primary use case for NetApp AFF C-Series?
I would recommend NetApp AFF C-Series for various types of companies depending on the use case. A small company, an e...
What advice do you have for others considering NetApp AFF C-Series?
I recommend Dell PowerStore to some of my customers, but usually the differences are taken care of. I focus primarily...
 

Also Known As

Pure FlashArray//X NVMe, Pure FlashArray//X, FlashArray//X, Pure FlashArray X NVMe
EMC Unity, Dell EMC Unity
No data available
 

Overview

 

Sample Customers

Fremont Bank, Judson ISD, The Nielsen Company
Draper, Rio Grande Pacific, Royal Victoria Regional Health Centre
Information Not Available
Find out what your peers are saying about Dell Unity XT vs. NetApp AFF C-Series and other solutions. Updated: March 2026.
885,311 professionals have used our research since 2012.