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: October 2026).

Buyer's Guide

All-Flash Storage

October 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

"After the implementation, the time to run the process was reduced to minutes and it did not require any manual intervention from our DBAs."

"Technical support is good."

"It allows engineers to focus on other things rather than doing the more manual tasks. It automates tasks, so the ease of use is extreme. It simplifies the storage."

"My favorite feature about Pure Storage FlashArray is definitely the simplicity; in one word, it's simple to install, simple to upgrade, simple to maintain, and simple to manage."

"It's a great return on investment, based on the mission."

"This solution has improved my organization because it has good performance."

"I never have to worry about its performance or if it is the root cause of an issue."

"The solution is stable with low vulnerabilities."

More Everpure FlashArray pros

"Provides good provisioning, allowing us to save space."

"This product is perfect for small, and mid-range customers who need to pay less, but still, get enterprise-level capabilities."

"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."

"To be programmatically administered is huge, it is one of the key features that we like about it."

"It is easy to manage. Managing it, I get alerts if there are any type of issues. I had a hard drive go bad, which had never caused any issues. Dell EMC contacted me, and said, "We are a shipping a new one out." My response was, "Why?" He told me that hard drive was bad. So, I went and looked, and it was. This was almost immediate. I never even knew anything had happened."

"The performance and the stability of the platform have been stellar, with no issues from customers and simple, very non-disruptive upgrades that have been fantastic for all of our customers."

"It has good performance."

"We have resolved IT challenges with this solution; it sped up our environment, and we went from spinning disk to all-flash, which reduced our footprint."

More Dell Unity XT pros

"So coupled with the simplicity, performance, and just absolute ease of use of the management of it, I don't know why anyone wouldn't buy it."

"It has a very good duplication rate; very, very good."

"Kaminario allowed us a solid state solution with marginal incremental cost."

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

"Built-in snapshot support gives us SAN-side functionality most other platforms would have had us license separately."

"The ratio between the physical storage and the storage we use is very high."

"Technical support is absolutely great."

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

More Kaminario K2 [EOL] pros

Cons

"A year ago they promised that they would be able to read through the database encryption with more metric and they have not delivered on that patch, which is significant because it gives us back so much more storage room. We want to be able to read through the encryption."

"If there is one thing that I did not appreciate about Pure, it is that between the two different lines, which would be FlashBlade and Everpure FlashArray, there is no easy way to migrate LUNs as far as being able to replicate across those platforms."

"We have not seen a reduction in our TCO nor have we seen ROI."

"We understand that they're thinking about it, but one of the things that would be nice is if they added some basic file-level capabilities to the platform. The idea is that they would run a basic NFS or CIF share from the controllers. FlashBlade is the powerhouse for File and Object storage, but if you don't need all that power, a lightweight file function would make FlashArrays more versatile."

"The only minor issues that come to mind are that, every once in a while, a hard drive will go bad. Also, the solution should be cheaper."

"They are doing some stuff with containers and an object search. These could be improved, because containers is one of the main topics that we are talking with our customers about."

"Awareness about Pure Storage needs to increase. Currently, people mostly think of Dell and NetApp when it comes to storage."

"Everything has been good, but we faced one issue last year while migrating volumes from one Pure Storage to another. The snapshots were not visible in the Veeam backup portal."

More Everpure FlashArray cons

"The one thing that we would look at would be if they were to expand the file level features, just to give us a balance or a tier between it and Isilon options out there, for unstructured data."

"I would like better integration with RecoverPoint. My major issue with the solution, all around, has been RecoverPoint more than Unity. While I like the easy user interface, I would like some more advanced features for troubleshooting built into the product, so that we can do more in-depth problem-solving."

"Improve the interface and provide more management capability."

"There is an ESRS problem that we're facing where, for some reason, the other Unity has not been able to register to EMC. The support information is not upgrading and nobody can tell me what is wrong with it. It's a minor issue, the ESRS is still working, but it is something that is very confusing and nobody seems to know what to do about it."

"The VNX reporting is much more granular, versus the Unity reporting."

"They should have more wizards for customers so they can do more of the self-service types of functions, in terms of upgrades and patching, although it's pretty easy right now."

"We do a lot of VMware. It only integrates with VMware in one way, which is virtual volumes."

"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."

More Dell Unity XT cons

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

"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."

"What I think would be a great idea for Kaminario is more visibility outside the US, when my customers start talking about AFA I notice they almost never talk about Kaminario, mainly because they just don’t know about them, and there are no local sales team to tell them about the Kaminario offering."

"Improved scale and budget planning with flexibility of the solution for budget needs and efficiency for growth with the great optimization ratio due to the nature of our use."

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

"I'd give it a perfect rating if I could push it to 300,000 IOPS like they promote; we just haven't been able to push that many IOPS out of our system."

"Replication and de-duplication could be better."

"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."

More Kaminario K2 [EOL] cons

Pricing and Cost Advice

"We have seen a reduction in the TCO, because Pure Storage is partnering with Belfrics. This partnership reduces our latency and space."

"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."

"The license for Pure Storage FlashArray includes the support and there are no additional payments that are needed. This is not an inexpensive solution, you need to understand the value of your data before you use a backup solution."

"They have a standardized fee; it's been the same price for 10 years straight. I am happy with the price — I think it's good."

"The price is very reasonable when compared to other solutions."

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

"When you are paying more than you were paying for the storage space, you'd like the cost to be less. If they could get into the spinning disk kind of cost, that would be it."

"The solution is expensive."

More Everpure FlashArray pricing and cost advice

"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."

"Pricing for this product is manageable, though slightly higher than comparable products."

"I liked the price point when we purchased it."

"Our costs are roughly $200,000 a year."

"The pricing is reasonable. We're using the Flex on Demand pricing. It's really good for us when we pay for what we use. It made it easy to get it inside since it's an OpEx and instead of CapEx expense."

"This unit is one of the cheapest storage all-flash arrays in the market and it does well for what it is intended. It can be combined for both file and block storage."

"The price of the solution should be less expensive. However, at some point, you need to pay for facility and performance."

"Here is our major complaint with pricing. Dell EMC comes to us and gives us a price. We are like, "Well, this doesn't even compare to what we got on the last project." We say, "No, you should bring it down to this level." Then, they come back again and we are sort of in the middle again. I am like, You already sold us other stuff at a better price. We are not going to just say, 'Yes,' because we are out of time.""

More Dell Unity XT pricing and cost advice

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

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

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

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

"The licensing is all-inclusive."

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

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

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Top Industries

By visitors reading reviews

Manufacturing Company

13%

Financial Services Firm

10%

Comms Service Provider

10%

Outsourcing Company

14%

Manufacturing Company

10%

Financial Services Firm

Construction Company

Financial Services Firm

18%

Outsourcing Company

18%

Construction Company

12%

Manufacturing Company

11%

Company Size

By reviewers

Large Enterprise

Midsize Enterprise

Small Business

By reviewers
Company Size	Count
Small Business	73
Midsize Enterprise	38
Large Enterprise	160

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?

When comparing cost, I find that the cost is either the same or slightly higher, but that is returned by the ease of ...

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What needs improvement with Pure Storage FlashArray?

The only thing I think could be improved is price. The price is the main concern for our customers.

See all answers

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 5% 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 19% of the time

Lenovo ThinkSystem DM Series vs Kaminario K2 [EOL]

Compared 12% of the time

Tintri VMstore T7000 vs Kaminario K2 [EOL]

Compared 10% of the time

Dell SC Series vs Kaminario K2 [EOL]

Compared 10% of the time

Huawei OceanStor vs Kaminario K2 [EOL]

Compared 8% of the time

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Product Reports

Buyer's Guide

Everpure FlashArray

October 2026

Download Everpure FlashArray product report

Buyer's Guide

Dell Unity XT

October 2026

Download Dell Unity XT product report

Buyer's Guide

Kaminario K2 [EOL]

October 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: October 2026.

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