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Dell Unity XT vs VNX [EOL] comparison

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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
Sponsored
Average Rating
9.0
Reviews Sentiment
7.2
Number of Reviews
231
Ranking in other categories
All-Flash Storage (3rd)
Dell Unity XT
Average Rating
8.4
Reviews Sentiment
6.5
Number of Reviews
198
Ranking in other categories
All-Flash Storage (6th)
VNX [EOL]
Average Rating
8.0
Number of Reviews
36
Ranking in other categories
No ranking in other categories
 

Q&A Highlights

it_user752949 - PeerSpot reviewer
Principal Architect with 1-10 employees
Dec 03, 2017
 

Featured Reviews

Sowjanya MV - PeerSpot reviewer
Technical Lead at Wipro Limited
Has improved performance for mission-critical workloads and enabled seamless non-disruptive upgrades
The availability is 99.99%, which is the main factor any customer would need because their data should be available whenever they want to access it. This is one main critical thing. It is very easy to upgrade since Pure Storage FlashArray handles it well. Everything is non-disruptive now; previously, there were forklift shifts, but now that is not the case. Pure Storage FlashArray says no to forklift upgrades. Usually hardware requires downtime, but Pure Storage FlashArray has improved their footprint so that they are not asking for downtime; everything is just a non-disruptive activity, which is why customers are more inclined towards Pure Storage FlashArray. Customers want more of the models in their environment due to the performance they are giving, and everything is in one Pure1 Array console where we can view all the models on one page or just an orchestration tool. You don't miss anything; you have replication, notifications about replication, and details about which host groups replication is happening in and if that replication is successful or failed. On a daily basis, our purpose is to create volumes for infrastructure; our daily activities include creating volumes and mapping them to the host, doing any migrations from a VM, clearing the data stores, and carving the volumes to those VMs. One key factor is the data compression with a ratio of 5:1, focusing on space efficiency, inline deduplication, and the compression Pure Storage FlashArray works on; that is a major factor we can suggest to any customer. Analytical capabilities are crucial. Daily, we check the throughput and consumption, and Pure Storage FlashArray provides predictions for one year regarding usage. This prediction helps plan updates well ahead. For support, we just raise a case, and they follow up and get it done. There is also AI readiness, but with the model R2, we don't have much of that AI readiness. For others, we do have AI readiness that predicts capacity based on daily or monthly trends, enabling us to analyze how much space we need or if we need to expand the disk shelf. From an operational point of view, a good feature is that if you accidentally delete a volume, it will be retained in the destroyed state for the next twenty-four hours, which is not the same with any other vendor. I have worked in this storage domain for the past fifteen years, and this option is remarkable, benefiting any L1 or L2 engineer. Additionally, from a compliance perspective, Pure Storage FlashArray has REST APIs enabled. I have not explored automation much, but from a security standpoint, it is strong with encryption data. If you want to automate, you can easily integrate with all clouds and explore Pure Cloud for scheduling workloads, including volume creation. Customers find benefit in Pure Storage FlashArray's single management pane of glass due to the dual controller and active-active setup. If one of the controllers goes down, all workloads automatically shift to the other controller, ensuring their data is safe and accessible at all times. This is a highlighted feature that any customer desires because their data should always be accessible. For SAN workloads, we use Pure Storage FlashArray because for SAN FC fiber channel, we don't use it; we use NetApp for NAS activities. We have clearly split this, so SAN is for mission-critical applications, while network-attached storage handles file systems. This architecture helps us maximize the benefit from Pure Storage FlashArray due to the significant workloads from this giant retail client. From a footprint and energy consumption perspective, you can see energy consumption from the Pure1 storage portal on a daily basis, and it is very compact. The three models we use consume only three units, which is quite low. From a footprint and data center perspective, it doesn't occupy much space. As everything moves to cloud, there are requirements to avoid excess spending on data centers, and Pure Storage FlashArray is efficient in energy consumption and is environmentally friendly.
TH
Assistant Manager, Technology Support & Services at a comms service provider with 51-200 employees
Managing data protection has become consistent and analytics now drive reliable performance
The most valuable features I find in Dell Unity XT include its robust performance and reliability. My thoughts about its in-line deduplication feature are positive. I would assess the value of Dell Unity XT multi-cloud support for my IT environment as highly beneficial. I do utilize Dell Unity XT data protection features. These features have assisted in ensuring data integrity by providing reliable backup and recovery options. Dell Unity XT integration with VMware helps scalability and availability through seamless operations and enhanced performance. My opinion on its Cloud IQ analytics is that it delivers insightful data that aids in operational efficiency.
AZ
Works at AIT
The Nimble CS-Series has proven to be reliable with 100% uptime
When we started the process of looking for a SAN vendor I had four primary criteria: reliability, performance, cost, and simplicity. We were really looking for a unicorn and were fully expected to have to make compromises in one of those areas. The Nimble CS-Series was recommended by our solutions provider, and we were blown away. Not only was it the most affordable option, but it was the easiest to deploy, had the best performance, and has proven to be reliable with 100% uptime.

Quotes from Members

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

Pros

"The most valuable feature is its data reduction."
"It helps us maintain uptime much better than other solutions we've used in the past, and the support is extremely quick and responsive."
"While all these products have their own uses, Pure Storage FlashArray is in a market of its own."
"Pure Storage FlashArray's overall speed is its most valuable feature."
"We put a fair amount of stress on it because we run sequel workloads and we run web applications where the same web files are hit over and over, and we have had almost zero stability issues with that SAN, which has been really great for us."
"FlashArray has many valuable features. It's very user-friendly and it has high availability, so there is comparatively less downtime. During maintenance, there is no shutdown procedure, so you can directly power off the Array and manage the shutdown process without any data loss, which is a unique feature. Managing replication and data migration is also very easy."
"It has improved the way our organization functions by improving the resilience of our infrastructure by quite a bit."
"Go with Pure (or a flasher rate which is similar) because of the ease of management and performance."
"It is very stable."
"Scheduled components are sourced from Korea based on their quality selection, with the actual purchase taking place in Vietnam. The notable features include cache memories and MOS feeder in Dell Unity. Additionally, the storage dynamics are managed uniformly on a global scale, whether it is a simple or wide-ranging configuration."
"This unit is one of the cheapest storage all-flash arrays in the market and it does well for what it is intended."
"Our end-users are happy with the product, there are no issues."
"Fully automated storage tiering (FAST) cache capabilities allows some FLASH drives to be used to improve the overall performance and reduce the cost of the array versus an all flash or old style spinning disk array."
"The NAS is also extremely easy to set up."
"It is scalable. We can add additional tools if we need to expand it."
"Dell EMC Unity XT has good integration with VMware."
"Not only was it the most affordable option, but it was the easiest to deploy, had the best performance, and has proven to be reliable with 100% uptime."
"It is a great product: scalable, reliable, and robust."
"In a banking environment, on which we required a very high throughput for our database, we have used this product and our desired response was received."
"It would be a good choice for midrange businesses due to the performance/features and cost."
"It has a good, high-level of storage."
"It is very stable, even during multiple power failures."
"Integration with VMware"
"Depending on how simple the customer needs it to be, might sway my recommendation one way or the other, but in terms of functionality, VNX is very very good."
 

Cons

"In the next release of the solution I would like to see Vormetric native block encryption."
"I would like to see data tiering to AWS."
"They need to find another way of doing data protection, RAID is not working very well."
"There are many features which need to be added, particularly on the replication side."
"Some of the issues are that it's probably not on a par with other large storage enterprise type products."
"I would like to see box-to-box encryption on replication included in the next release."
"We would like more extended historical data to help with some of the capacity planning. This is something that we are asking for all the time. E.g., what was the historical performance of this particular volume? So, we would like more historicals."
"Historical analytics would be useful. At the moment, they don't have any type of application built for historical analytics."
"I would like to see a more seamless virtual box integration with the physical box which can replicate, because the setup of the replication is very difficult right now."
"Software updates have to be downloaded to the root of the device. This pushes the available space to 95% utilization."
"Support Responsiveness & time to fix bugs should be improved."
"Maybe deduplication would be something that would be better to have."
"The lack of deduplication reduces some of the competitiveness compared to other products."
"The application's administration needs improvement and become better."
"Having used EMC products for more than 15 years, this is the first product in that time that I could find nothing to like."
"Dell EMC Unity XT has some scalability issues which they need to address."
"The management software used for the VNX is Unicenter. While it is an improvement over Navicenter, used in older EMC SANs, it still feels outdated in comparison to other SAN management software."
"There were scalability issues, the scalability options are limited due to supported SSD."
"Yes, we have had issues. The system is limited by the number of enclosures."
"VNX can improve by offering flexible upgrade options. It's not possible to add a single HDD to a current array and there are fixed rules to make upgrades."
"EMC products are costly when compared to other vendors such HP, Hitachi, Dell, and NetApp."
"Oracle is never the cheaper solution. Compared to others, it is always among the most expensive."
"The scalability is average because the storage has some hardware limitations and, obviously, operating system limitations."
"As an entry level array, this is just right, but adding support for FAST-VP would be beneficial although that feature is available on the higher end VNXe3200."
 

Pricing and Cost Advice

"You can pay extra for Evergreen support, which gives you free upgrades when new features are introduced."
"The price of the solution is not expensive."
"The cost of Pure Storage is subjective and determined by your environment. Pure Storage tends to be more expensive than NetApp, but it is cheaper than EMC. Performance varies with data workload, making cost considerations complex."
"The price of the solution can be a bit expensive. There is an additional fee for support."
"Pure is not a cheap product. It is not something that is inexpensive. But, the total cost of ownership tends to be lower than with other solutions, because you don't need a lot of expertise, you don't need a lot of training or very expensive engineers or very expensive consultants."
"Because the price is a bit higher than other products, the data reduction equalizes the price with amount of the data reduction."
"There is an annual or perpetual license required for this solution."
"When I last looked, the prices were reasonable, and we could get an excellent array for about $60,000."
"This solution is a good price for what you get."
"Go with the virtual appliance versus the hardware."
"Our CAPEX was close to $42,000 and operating costs are below $1000."
"For costing, you have to have a budget in mind because SANs can be fairly expensive and EMC offers a wide range of products."
"The price is good for commercial grade storage arrays."
"Licensing is a little bit confusing. Going through everything with them, there are a lot of line items to go over. Every single thing is broken down into a line item, and it starts to get really confusing in terms of what we're actually purchasing when it comes to the product."
"The flexibility is important. We still have a lot of customers that have a use case for non-flash, yet you can also build the flash version as well."
"It is an average priced solution."
"Make sure you understand how the licensing works and that you are getting the right set of licenses if you need array-to-array replication."
"Pricing is somewhat higher, especially in Zambia, perhaps due to the low sales volume."
"Over time, VNX has become pricier than its competitors, and we have turned enthusiastically to Unity."
"The initial pricing and licensing are reasonable, the yearly EMC is more expensive"
"​Reducing dependency on JavaServer Pages​ (JSP) could improve the administrative overhead.​"
"While EMC tends to be on the expensive side, the stability and support of their products are top-notch and I feel are worth the cost."
"The initial pricing and licensing are reasonable. Yearly EMC is more expensive."
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Answers from the Community

it_user752949 - PeerSpot reviewer
Principal Architect with 1-10 employees
Dec 3, 2017
Dec 3, 2017
Unity series is re-engineered VNX, so the Unity is newer … it makes better use of flash, active – active , dual controller mode; better price point , configurations solid upgrade from the VNX
2 out of 21 answers
CT
Business Development Manager at a tech services company with 51-200 employees
Oct 31, 2017
The VNX range is older and is being phased out. I think you mean VNX 5200? That said the Unity 400 is the better investment as it is newer, cheaper to support, faster, and with higher capacity and bigger supported file system size.
it_user281856 - PeerSpot reviewer
Advisory Systems Engineer at a tech vendor with 1,001-5,000 employees
Oct 31, 2017
Hope this helps: http://virtualgeek.typepad.com/virtual_geek/2016/05/emc-world-2016-unity-the-story-behind-the-story.html
 

Top Industries

By visitors reading reviews
Manufacturing Company
13%
Financial Services Firm
10%
Construction Company
9%
Comms Service Provider
8%
Outsourcing Company
14%
Manufacturing Company
9%
Financial Services Firm
8%
Computer Software Company
8%
Construction Company
17%
Outsourcing Company
15%
Financial Services Firm
13%
Manufacturing Company
11%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business71
Midsize Enterprise38
Large Enterprise159
By reviewers
Company SizeCount
Small Business62
Midsize Enterprise48
Large Enterprise96
By reviewers
Company SizeCount
Small Business5
Midsize Enterprise6
Large Enterprise23
 

Questions from the Community

Which should I choose: HPE 3PAR StoreServ or Hitachi Virtual Storage Platform F Series?
Both are great platforms, but if you are considering all flash solutions, I would recommend you to consider Pure Stor...
What is your experience regarding pricing and costs for Pure Storage FlashArray?
I find the pricing of Everpure FlashArray to be quite high compared to other storage solutions; however, the reliabil...
What needs improvement with Pure Storage FlashArray?
I believe we have covered the most important features; the architecture of Pure Storage is essential, and features su...
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...
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Also Known As

Pure Storage FlashArray
EMC Unity, Dell EMC Unity
VNX
 

Overview

 

Sample Customers

Nielsen, Lamar Advertising, LinkedIn, Betfair, UT-Dallas
Draper, Rio Grande Pacific, Royal Victoria Regional Health Centre
Samsonite, Comanche County Memorial Hospital, Kindred Healthcare
Find out what your peers are saying about Dell Technologies, NetApp, Everpure (formerly Pure Storage) and others in All-Flash Storage. Updated: September 2026.
912,788 professionals have used our research since 2012.