Dell Unity XT vs Kaminario K2 [EOL] comparison

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Dell Technologies and Silk are both solutions in the All-Flash Storage category. Additionally, 96% of Dell Technologies users are willing to recommend the solution, compared to 94% of Silk users who would recommend it.

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Executive Summary

We performed a comparison between Dell Unity XT and Kaminario K2 [EOL] based on real PeerSpot user reviews.

Find out what your peers are saying about Dell Technologies, NetApp, Everpure (formerly Pure Storage) and others in All-Flash Storage.

To learn more, read our detailed All-Flash Storage Report (Updated: September 2026).

Buyer's Guide

All-Flash Storage

September 2026

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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

Featured Reviews

Sowjanya MV

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.

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Taj Hussain

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.

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Engineerdb78

Network Engineer at a comms service provider with 10,001+ employees

A solution with a simple configuration and good stability but it's quite expensive

Access to technical support should be improved for our region. Technical support is good, but they're very hard to access. When we have a problem with this storage, it's usually related to a very bad configuration. All-Flash Storage is very, very expensive. They are important solutions so I don't really have any ideas about how to rectify this. The device could use better monitoring tools.

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Quotes from Members

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

Pros

"The stability is very good. I've done destructive testing on it and never had any type of storage outages from it."

"The first set up we had was really straight forward and simple."

"This improves our organization because we can just set it up and we forget about it, everything works, and we do not need to worry about storage or bandwidth issues."

"The technical support from Pure Storage FlashArray is perfect; if we have some trouble or we need to change something, we ask for support and they are helpful and answer immediately."

"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."

"FlashArray's data reduction and NAS features are incredible. Its performance is the best I've worked with."

"From an investment standpoint, the support staff I require for it is greatly reduced, so I don't have the in-depth requirements that I had on other products."

"The money I saved by not renewing maintenance on the Dell EMC devices paid for the Pure Storage devices."

More Everpure FlashArray pros

"We just started doing a bunch of automation where, if an end-user's home directory or departmental share gets filled, I can set certain things through a Unity API so that if it reaches 95 or 98 percent full, it will automatically expand. Now, instead of our getting a ticket and having to go in and do it manually, it does that for us."

"I have had no problem at all. I think this is one of the most important things. It is very good. Maintaining it and deploying updates require very low maintenance. We haven't had problems. We had to replace a couple of disks in all these years, but it was pretty straightforward."

"Using this solution has meant that I do not need to look for different partners to provide me with solutions like a backup service. Dell provides end to end solutions."

"Our Unity arrays are our primary storage arrays for both of our data centers; we run all our VMs on there, they are all-flash, have been running great, and we have had no problems with them."

"I like how it separates the iSCSI drives from the standard shares. It has two different routes to it. I know most of the other solutions do this, but I just like the way that Dell EMC does it."

"We use it to implement all our VDI solutions."

"We use it to backup our storage, and also positioning LANs by using the file option, then the block, and it is very easy and convenient."

"All of the IT devices help production time, they make time faster, but this device, in general, is a money maker and makes us a lot of money and is critical to the business."

More Dell Unity XT pros

"From my perspective, it is a huge success fulfilling everything we needed and more!"

"The most valuable feature is definitely the always-on data deduplication."

"Using snapshots allows us to automate production database refreshes to development environments in minutes, rather than in hours."

"Ease of use: My installers - my administrators over the system - they love how easy and fast it is to install and spin up a LUN and get going."

"I think this product hits all the big features of all the SANs that are out there, all the storage vendors that are out there and more."

"Latency is definitely the big key for us."

"The speed and, for us in particular in what we're doing, the data de-duplication."

"Go with it. I tell people all the time they need to take a serious look at it."

More Kaminario K2 [EOL] pros

Cons

"Automation could be simplified."

"I think the pricing for Pure Storage FlashArray is the major issue because all the great things come with the price, and a lot of customers simply are not willing to accept it."

"In terms of improvement, Everpure FlashArray could have more attractive UI/UX design compared to other solutions."

"It is way in excess of what we need. If anything, we could see a bit more speed. I'm just comparing it with what some of my colleagues who are implementing their own systems do."

"The pricing and licensing of Everpure FlashArray is a problem because Everpure is considered more expensive than competitors."

"I would like to see some improvements on the FlashBlade side around the CIFS space support. I am not super familiar with all the different NAS protocols that they run on their box, but there could be some improvements made on SMB CIFS side."

"The GUI is simplistic and basic. I feel like it's explanatory, but not enough, it needs a little more to it."

"I feel like there is too much automation; the user doesn't have any manual input."

More Everpure FlashArray cons

"I would like to see better compression, better dedupe. It's not nearly as good as what is built into the XtremIO. I understand why that is the case, but if they can take some of that technology and leverage that a little bit better in the Unity array, that would be great."

"There is a lot of room for improvement on the support side, because of the response time."

"For the upgrade from the old system to the new system, if there was a better way to integrate them so I could easily move the data without working all those nights and weekends, that would be nice."

"The lack of deduplication reduces some of the competitiveness compared to other products."

"Maybe deduplication would be something that would be better to have."

"Since Dell took over EMC, the support has been very bad. Before, the support was fine. Now, the support is slow or they don't react."

"This product lacks deduplication and compression at the current version 4.1.0. LACP is not available for iSCSI either."

"My only complaint would be some of the CLI Help files could be a little more detailed, but that's very minor complaint."

More Dell Unity XT cons

"I would like them to improve the look of the product’s external casing and shelves."

"Access to technical support should be improved for our region. Technical support is good, but they're very hard to access."

"I would love to see capacity on its DRAM. I know it's not cost effective for them to do it, but I think that it could be a big differentiator and was a big differentiator from the beginning."

"I would like to see them work with Cisco, so it comes off the FIs, instead of having to go through my 10-gig network."

"The interface look and feel could be improved."

"On the road map, I'm hoping to see Active Directory integration. Right now, you still have to use a local admin account to log in and manage everything."

"There are some mid-market SMB customers that it may not fit the best for from a pricing perspective, but for the vast majority of our customers, once we aware of it and learned about the technology which it performed with, it fits a very useful metric."

"The front panel of the drive shelf doesn't always seat firmly."

More Kaminario K2 [EOL] cons

Pricing and Cost Advice

"The Evergreen Storage subscription is a really cool concept. As long as we maintain our subscription, we will get new controllers every three years and really never have a forklift upgrade like we currently are doing. Just that future-proofing is an ease off of my mind to know that I won't have to do what I'm dong right now again."

"It is light years beyond anything else with the same price point."

"Our Evergreen Storage subscription is supposed to be good when we go to upgrade."

"We have a seen a reduction in TCO. It is definitely a cost-effective solution for us. We have seen ROI."

"There are no licensing fees aside from the support."

"We would like them to improve the pricing, so we could put them to use some more product, like backup or long-term storage. In the future, if the price goes down, then we could buy different types of products."

"Because of the SSD, it is cheaper because I am not purchasing so many disks."

"While it comes with a higher price tag, this investment often translates to significant improvements in performance."

More Everpure FlashArray pricing and cost advice

"The only improvement would be a lower cost per unit/disks, however on the whole we are very pleased with this product."

"Most licenses for the solution are free but upgrades are available when adding additional software or storage."

"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."

"The price of Dell EMC Unity XT is higher compared to other solutions. The price should be less expensive."

"The price in our country is very expensive and some of our customers opt for lower-cost alternatives."

"It's the performance combined with the gig-per-dollar value. That combination is superior to other storage options."

"We bought extended warranties out of the box because our customer has a bad habit of managing warranties."

"The ROI is right where we need it to be. It's a reasonably priced array."

More Dell Unity XT pricing and cost advice

"Licensing is very straightforward. The cost was considerably lower than other products we looked at."

"The Kaminario setup is simple and there are no hidden licensing fees so this area is a relief."

"The "extra" costs associated with features and options that are available off the shelf with Kaminario, make their value proposition extremely competitive."

"All features are provided in the licensing. The cost of Kaminario was less than the cost of a hybrid array."

"Kaminario is very competitive on price. They also have a pay per TB model."

"The licensing is all-inclusive."

"I would like them to come down in price. It is as expensive as EMC, Hitachi, and other major vendors."

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Top Industries

By visitors reading reviews

Manufacturing Company

13%

Financial Services Firm

10%

Construction Company

Comms Service Provider

Outsourcing Company

14%

Manufacturing Company

Financial Services Firm

Computer Software Company

Outsourcing Company

20%

Financial Services Firm

17%

Construction Company

13%

Manufacturing Company

Company Size

By reviewers

Large Enterprise

Midsize Enterprise

Small Business

By reviewers
Company Size	Count
Small Business	71
Midsize Enterprise	38
Large Enterprise	159

By reviewers
Company Size	Count
Small Business	62
Midsize Enterprise	48
Large Enterprise	96

By reviewers
Company Size	Count
Small Business	4
Midsize Enterprise	4
Large Enterprise	9

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...

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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...

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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...

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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...

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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...

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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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Comparisons

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Compared 10% of the time

Dell PowerStore vs Everpure FlashArray

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HPE Alletra Storage vs Everpure FlashArray

Compared 6% of the time

VAST Data vs Everpure FlashArray

Compared 6% of the time

IBM FlashSystem vs Everpure FlashArray

Compared 4% of the time

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Dell PowerStore vs Dell Unity XT

Compared 25% of the time

NetApp AFF vs Dell Unity XT

Compared 9% of the time

HPE 3PAR StoreServ vs Dell Unity XT

Compared 6% of the time

Tintri VMstore T7000 vs Dell Unity XT

Compared 5% of the time

Hitachi Virtual Storage Platform vs Dell Unity XT

Compared 4% of the time

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NetApp AFF vs Kaminario K2 [EOL]

Compared 22% of the time

Lenovo ThinkSystem DM Series vs Kaminario K2 [EOL]

Compared 15% of the time

Tintri VMstore T7000 vs Kaminario K2 [EOL]

Compared 11% of the time

Huawei OceanStor vs Kaminario K2 [EOL]

Compared 10% of the time

SolidFire vs Kaminario K2 [EOL]

Compared 7% of the time

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Product Reports

Buyer's Guide

Everpure FlashArray

September 2026

Download Everpure FlashArray product report

Buyer's Guide

Dell Unity XT

September 2026

Download Dell Unity XT product report

Buyer's Guide

Kaminario K2 [EOL]

September 2026

Download Kaminario K2 [EOL] product report

Also Known As

Pure Storage FlashArray

EMC Unity, Dell EMC Unity

No data available

Overview

The FlashArray family delivers consistent, high-performance data services across block, file, and object workloads. As part of the Everpure Platform, it provides the foundation for a unified data plane, enabling applications to reliably access, protect, and manage data across environments with simplicity and predictability. With built-in capabilities such as inline data reduction, snapshots, replication, and ransomware resilience, FlashArray ensures efficient operations, protected data, and consistent application uptime.

As the foundation of the (unified) data plane, FlashArray enables policy-driven automation, monitoring, and centralized management while integrating across cloud and on-premises environments. Built on an Evergreen architecture, it supports non-disruptive upgrades and continuous performance improvements over time while simplifying operations at scale.

What Key Features Does FlashArray Offer?

Simplicity and Speed: Easy management and rapid performance enhancements.
Data Reduction: Effective deduplication and compression.
Flash Architecture: Seamless upgrades and outstanding resilience.
VMware Integration: Excellent compatibility with virtualization platforms.
Predictive Analytics: Strong insights for proactive management.

What Benefits Should Users Consider?

Reliability: Proactive support with minimal downtime.
Efficiency: Reduced storage footprint and enhanced data management.
Performance: Faster processing speeds and low latency.
User Experience: Simplified management with Evergreen model.

In industries like finance, banking, and healthcare, FlashArray supports high-performance storage needs focusing on virtualization and database environments. Employed for VMware workloads, disaster recovery, and storage provisioning, it ensures application performance in private or hybrid cloud setups while enhancing management of virtualized environments.

Everpure (formerly Pure Storage)

Dell Unity XT is renowned for its ease of use and management, high performance with all-flash arrays, and seamless integration with VMware. It's appreciated for robust data replication, multi-protocol support, inline compression, and deduplication capabilities, ideal for mid-range storage needs.

Known for its advanced HTML5 interface, Dell Unity XT offers unified block and file storage with rapid deployment and efficient storage utilization. Its scalability and cost-effectiveness make it appealing to users transitioning from older systems. The system supports databases like Oracle and SQL, alongside serving as network-attached storage (NAS). While recognized for performance, integration, and reliability in virtual environments, its deduplication, compression, and support quality are areas flagged for enhancement. There's a desire for improved synchronized replication and monitoring capabilities, enhanced VMware compatibility, and active-active controller functionality. Native cloud integration and better pre-sales support are also anticipated by users.

What are the main features of Dell Unity XT?

VMware Integration: Seamless operation within VMware environments.
Data Replication: Reliable and robust data replication features.
All-Flash Arrays: High-performance storage solution with all-flash capabilities.
Multi-Protocol Support: Flexible support for various storage protocols.
HTML5 Interface: Advanced and efficient management interface.

Where can users find ROI when evaluating Dell Unity XT?

Performance Optimization: Enhanced storage performance for demanding applications.
Scalability: Easily scales to meet growing business requirements.
Cost-Effectiveness: Competitive pricing for mid-range storage solutions.
Seamless Integration: Works smoothly with existing IT infrastructure.
Reliable Data Management: Secure and efficient handling of critical data.

In sectors relying heavily on virtualization and data-intensive applications, Dell Unity XT serves as a vital component in data centers. It plays crucial roles in hosting virtual machines, supporting extensive databases, and providing robust network-attached storage. This adaptability makes it a favored choice for organizations transitioning from traditional storage systems.

Dell Technologies

Kaminario K2 is the world’s only storage solution that delivers the predictability needed to handle the highly unpredictable world of modern businesses. This highly flexible all flash storage platform allows customers to cost-effectively scale capacity and performance to support their ever-changing business –seamlessly, on-demand and with no disruptions.

Data Sheet and eBook

Silk

Sample Customers

Nielsen, Lamar Advertising, LinkedIn, Betfair, UT-Dallas

Draper, Rio Grande Pacific, Royal Victoria Regional Health Centre

Wargaming.net, El Rio Community Health Center, ECN, SpotOption, Ashkelon College, Clearwater Analytics, Intigua, Cobb EMC Customer Case Study

Find out what your peers are saying about Dell Technologies, NetApp, Everpure (formerly Pure Storage) and others in All-Flash Storage. Updated: September 2026.

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