Kaminario K2 [EOL] vs NetApp AFF comparison

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Silk and NetApp are both solutions in the All-Flash Storage category. Additionally, 94% of Silk users are willing to recommend the solution, compared to 98% of NetApp users who would recommend it.

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Executive Summary

We performed a comparison between Kaminario K2 [EOL] and NetApp AFF 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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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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Mir Gulzar Ahmed

IT Manager at Synergy Computers

Unified storage has delivered efficient AI analytics and low latency for critical workloads

There might be some lag or response time with respect to support cases, but even then I will rate it 8.5 out of 10. All of this is the same for all product ranges, whether E-series, NetApp AFF, or FAS series, because they are very efficient to respond. The only reason I rated it 8.5 is because the warehouse for spare parts, when a problem comes, a spare is needed to replace it, for example, a disk. In Pakistan, they have only one warehouse in Karachi. This warehouse manages all the problems when a problem comes. They ship the part based on the customer use case and customer service request. That is the only reason I rate it 8.5 because they have only one warehouse in Pakistan, which is in Karachi. For example, if a problem comes in Islamabad, it will take time to deliver the spare because the part will be shipped from Karachi to Islamabad, which will take around maybe a day. Other OEMs have their warehouses in Islamabad, Lahore, and Karachi also. In terms of part replacement requirements, they are very efficient in that area because they have warehouses in multiple cities of Pakistan.

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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 most valuable features would be its performance, retrieval, recovery, and backup, and it meets the customer's expectations."

"Service and support is phenomenal."

"The white glove customer service that I get is their greatest value."

"Performance is the most valuable feature."

"Their technical support is excellent. It's the best out of any of the vendors we work with."

"It saved a lot of space, as far as physical space in our data center."

"You can get your storage access within two minutes, which is great, because it is a lot quicker for our team to get the servers up and running."

"The most valuable features are the ease of use and support."

More Everpure FlashArray pros

"Logic/software management"

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

"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."

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

"The stability of the solution is very good."

"Technical support is absolutely great."

"The increased performance is many times above our previous array performance in all metrics. Integration with vSphere features is also a definite plus."

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

More Kaminario K2 [EOL] pros

"We have moved GPFS's metadata to the SSD disks, the incremental backup is 6-8 times faster (we have over 120,000,000 files and backup takes only 30 hours now)."

"We compared this tool against EMC’s XtremIO head-to-head, and the NetApp blew it out of the water."

"NetApp AFF has definitely reduced our data center costs."

"They have come up with top of the line inline deduplication, delivering compression and aggregate compaction, and everything is improving with their new features coming out on a day-to-day basis."

"It provides greater stability for our corporate database, which we host on the FAS, and we have a much greater sense of confidence and reliability in our data solutions."

"Stability has been fantastic."

"The MetroCluster feature allowed us to continue our operations (without business interruption) when we stopped one of the sites."

"We have been able to successfully use their high availability as well as run online upgrades without any disruption."

More NetApp AFF pros

Cons

"The price of Pure Storage FlashArray could be better."

"Self-backup is the only feature lacking in this solution."

"Storage. There could be better storage."

"It is not possible to create a cluster on top of multiple arrays."

"I would rate this solution an eight because we have had outages. The commit times went very high in the database. The whole array went down so our customers were down for around eight hours. This was a very big outage which could have been our fault because we didn't do the upgrade in time."

"The one major gripe I have is that there is no snapshotting enabled by default on the SAN."

"The time-to-market could be better at times, but I think that's true for all vendors of hardware."

"They need to find another way of doing data protection, RAID is not working very well."

More Everpure FlashArray cons

"Replication and de-duplication could be better."

"Some of the nice to haves for us, in terms of today, would be VVols but again, it’s not a critical feature."

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

"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."

"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."

"I think it should have better performance with small files. With big data, its performance is top notch, but it is difficult to load small files."

"There are a few areas where the system could be improved. Examples would be that the system currently has a 15TB LUN size limit and that snapshots need to be scheduled through script API instead of the GUI."

More Kaminario K2 [EOL] cons

"We have run into some pain points. I don't know that it's necessarily NetApp's fault."

"The stability is good but there is room for improvement with other options."

"Basically, they could do better in terms of software integration. There are a lot of features that, when we try to do it or, when NetApp tries to do it, they come across a lot of bugs which could affect us as customers."

"The problem right now is that NetApp is in the process of discontinuing old disks and the new disks are not yet available."

"8.3 is not as stable as 7-Mode as it gets stuck every once in a while."

"Offering the ability to actively write data on a single volume spanning multiple clusters is significant."

"We would like to have more behavioral reporting."

"The web management interface has fewer options than the on-prem console."

More NetApp AFF cons

Pricing and Cost Advice

"Pure Storage FlashArray is expensive."

"We have seen a reduction in total cost of ownership (TCO)."

"The price of Pure Storage FlashArray could always improve. They are still more expensive than some alternative offerings. Cost is always a concern and when there is a battle they tend to be more expensive."

"There are no licensing fees or other costs."

"Pricing is very competitive, and it's better than other competitors."

"The price of the Pure Storage Flash Array is too high and there needs to be more contact clarity. We went with the Evergreen plan and I don't have clarity on what am I supposed to pay each year or every three years. There was not much contract clarity."

"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."

"We evaluated Oracle and Hitachi, but Pure Storage had the better pricing."

More Everpure FlashArray pricing and cost advice

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

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

"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."

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

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

"NetApp is getting too expensive."

"I am able to store two times more data than what I'm purchasing, which affects the way funds are being utilized."

"The price to performance ratio with NetApp is unmatched by any other vendor right now."

"Using NetApp, our total cost of ownership decreased by 17%."

"Its price is quite competitive, but there is still scope for better pricing."

"The stability of AFF alone has been a significant ROI."

"Always consider whether you can afford the solution."

"Obviously depending on the price point, NetApp is obviously a little more expensive than your generic Dell SAN solution or whatever."

More NetApp AFF pricing and cost advice

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Comparison Review

it_user186357

Solutions Architect with 51-200 employees

Jan 28, 2015

NetApp vs. XtremIO

Is there another storage platform as feature rich as NetApp FAS? I think it is fair to say that NetApp FAS running Clustered Data ONTAP is a very feature rich platform – the move to the clustered version of ONTAP has brought many next-generation features including Scale-out and Non-disruptive…

Read full review

Top Industries

By visitors reading reviews

Manufacturing Company

13%

Financial Services Firm

10%

Comms Service Provider

10%

Outsourcing Company

18%

Financial Services Firm

18%

Manufacturing Company

13%

Construction Company

11%

Manufacturing Company

12%

Outsourcing Company

11%

Construction Company

Financial Services Firm

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	4
Midsize Enterprise	4
Large Enterprise	9

By reviewers
Company Size	Count
Small Business	47
Midsize Enterprise	47
Large Enterprise	242

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...

See all answers

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 ...

See all answers

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

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What is the Biggest Difference Between Dell EMC Unity and NetApp AFF?

Well, Is one thing NetApp Storage has vs other brand is the mix of protocol CIFS with NFS booth working together in t...

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What is the Biggest Difference Between Dell EMC Unity and NetApp AFF?

This question is very dependent on your requirements. Both are among the best in the field. Of course, the intended c...

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What is the Biggest Difference Between Dell EMC Unity and NetApp AFF?

The answer depends on your needs and budget. If you want high performance (who doesn't) or let's say the latency matt...

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Comparisons

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Dell Unity XT vs Everpure FlashArray

Compared 7% of the time

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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Lenovo ThinkSystem DM Series vs Kaminario K2 [EOL]

Compared 11% of the time

Dell SC Series vs Kaminario K2 [EOL]

Compared 10% of the time

Tintri VMstore T7000 vs Kaminario K2 [EOL]

Compared 10% of the time

Dell Unity XT vs Kaminario K2 [EOL]

Compared 9% of the time

Huawei OceanStor vs Kaminario K2 [EOL]

Compared 7% of the time

More Kaminario K2 [EOL] Competitors

Dell Unity XT vs NetApp AFF

Compared 7% of the time

Dell PowerStore vs NetApp AFF

Compared 7% of the time

IBM FlashSystem vs NetApp AFF

Compared 5% of the time

HPE 3PAR StoreServ vs NetApp AFF

Compared 4% of the time

VMware vSAN vs NetApp AFF

Compared 4% of the time

More NetApp AFF Competitors

Product Reports

Buyer's Guide

Everpure FlashArray

October 2026

Download Everpure FlashArray product report

Buyer's Guide

Kaminario K2 [EOL]

October 2026

Download Kaminario K2 [EOL] product report

Buyer's Guide

NetApp AFF

October 2026

Download NetApp AFF product report

Also Known As

Pure Storage FlashArray

No data available

NetApp All Flash FAS, NetApp AFF, NetApp Flash FAS

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)

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

NetApp AFF provides high-performance storage solutions, emphasizing speed and efficiency for demanding applications. Its features include low latency, inline deduplication, and seamless integration, making it ideal for businesses needing reliable storage and data management.

NetApp AFF stands out in offering rapid data access with features designed to meet the demands of high-speed environments. With capabilities such as low latency and inline deduplication, it ensures efficient data management. Data recovery and SnapMirror enhance its appeal for businesses focused on utility and integration with other NetApp systems. The clustered Data ONTAP enriches the user experience, making NetApp AFF a strong choice for those prioritizing usability and performance during migration. However, some users highlight the steep learning curve and high costs, along with the need for better integration, monitoring tools, and technical support. Improvement in migration, scalability, documentation, and automation is also desired, along with more competitive pricing.

What are its standout features?

Speed: Offers rapid data access for high-demand applications.
Low Latency: Ensures quick response times.
Inline Deduplication: Optimizes storage efficiency.
Seamless Integration: Integrates smoothly with NetApp systems.
SnapMirror: Facilitates efficient data recovery.
Clustered Data ONTAP: Enhances user experience.

What benefits should users look for?

High Performance: Supports critical applications with speed.
Reliability: Provides robust data management solutions.
Data Utility: Enhances data access and recovery options.
Efficient Migration: Ensures smooth transitions with minimal disruption.
Integration Support: Works well within existing NetApp environments.

NetApp AFF is commonly utilized in industries such as telecom, healthcare, and insurance that require high-performance storage. Virtualization, database management, file storage, and NFS/CIFS protocols are key use cases. It supports high availability and disaster recovery, serving as the backbone for VM and Hyper-V infrastructures. Organizations also benefit from its low latency and support for AI workloads, optimizing operational efficiencies.

NetApp

Sample Customers

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

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

DreamWorks Animation, FICO, Yahoo! Japan

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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