Dell PowerScale (Isilon) vs Nutanix Unified Storage (NUS) comparison

Dell PowerScale (Isilon) vs. Nutanix Unified Storage (NUS)

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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:

ROI

Sentiment score

6.6

Pure Storage FlashBlade reduces total cost of ownership by enhancing efficiency, enabling fast restorations, and supporting diverse use cases.

Sentiment score

7.0

Dell PowerScale offers efficient scaling, central management, and cost-effective performance, enhancing workload handling and energy savings for businesses.

Sentiment score

6.9

Nutanix Unified Storage boosts ROI by reducing costs, enhancing uptime, scalability, and efficiency, while improving data management and productivity.

It does not require much management once you set up correctly, so it saves time, allowing an admin to focus on other work.

For more quotes and insights, download the Pure Storage FlashBlade report

Senior Network Engineer at Holy Redeemer Health System, Inc.

Despite being more expensive than Huawei, it is stable and most enterprises accept the price due to its stability.

Atif Pervaiz

Senior System Engineer at Atlas Security

In terms of Dell PowerScale (Isilon) specifically, we have seen a return on investment due to faster performance than our last few storage arrays, and the general usability is a lot better.

Cheyne Skapyak

Storage & Data Protection Specialist at General Dynamics Land Systems

The second cluster of Dell PowerScale (Isilon) gives us flexibility for small things like code upgrades, all the way to scenarios where we have lost this data center or data, allowing us to check if data is still intact on the other side.

reviewer2706753

Senior System Engineer at a healthcare company with 10,001+ employees

For more quotes and insights, download the Dell PowerScale (Isilon) report

For me, the biggest return on investment when using this solution is that we do not have to have much support staff to run it.

Tom Hiles

Senior Manager, IT Infrastructure & Support at a tech services company with 501-1,000 employees

The scalability challenge with previous systems is lessened with Nutanix since we can expand by adding new hardware without needing migrations.

Ryan Salaheddine

Infrastructure Architect & Manager at a real estate/law firm with 201-500 employees

We are saving approximately 20% to 25% compared with the competition.

reviewer2703840

Global of Central Computing IT Operations Head at a retailer with 10,001+ employees

For more quotes and insights, download the Nutanix Unified Storage (NUS) report

Customer Service

Sentiment score

7.6

Pure Storage FlashBlade's support is generally praised for responsiveness, despite occasional delays and communication issues, maintaining a favorable reputation.

Sentiment score

7.2

Dell PowerScale support receives mixed reviews, with notable praise for technical expertise but issues with initial interactions and language barriers.

Sentiment score

7.5

Nutanix Unified Storage customer service is efficient and knowledgeable, with high satisfaction but room for improvement in complex cases.

I would rate them an eight out of ten.

IT Field Support Engineer at a tech vendor with 10,001+ employees

The support is done through email and is not that great, making it a very problematic area I've been dealing with for over four years.

Senior Network Engineer at Holy Redeemer Health System, Inc.

Their technical support has been perfect lately, so I would give it a 10.

For more quotes and insights, download the Pure Storage FlashBlade report

IT Manager at Regin Dalarna

Support online is definitely a ten out of ten.

Mazen Jamal Eddine

Pre-Sale Engineer at Arab Operators

Dell provides support within four hours, and they always fulfill their promises.

Atif Pervaiz

Senior System Engineer at Atlas Security

They have managed previous issues well.

Mikael Hellström

IT Manager at Regional Health Services

For more quotes and insights, download the Dell PowerScale (Isilon) report

They come on the call, start troubleshooting immediately, and resolve issues effectively.

Ashish Savaratkar

Senior System Administrator at a tech vendor with 1,001-5,000 employees

They are very knowledgeable, and if they can't solve the problem, they find the answer within a day or so.

Shawn Greisen

Manager, System Engineering at a mining and metals company with 10,001+ employees

I would give the customer service and technical support a ten out of ten.

Manuel Heredia

PreSales at IKUSI

For more quotes and insights, download the Nutanix Unified Storage (NUS) report

Scalability Issues

Sentiment score

8.6

Pure Storage FlashBlade excels in scalability, with seamless expansion, downtime-free growth, and praised support across various sectors.

Sentiment score

7.0

Dell PowerScale (Isilon) offers scalable, efficient storage with easy expansion and integration, ideal for enterprise data needs and future growth.

Sentiment score

7.8

Nutanix Unified Storage offers scalable, efficient, and stable storage expansion with easy integration and intuitive licensing for diverse environments.

Pure Storage FlashBlade is scalable.

Senior Network Engineer at Holy Redeemer Health System, Inc.

There are between 5 and 10,000 people using it in our organization.

For more quotes and insights, download the Pure Storage FlashBlade report

IT Manager at Regin Dalarna

We started on PowerScale with around about 300 terabytes and are now two and a half petabytes, still on the same file system.

Uli Betzler

Storage Architect at a educational organization with 10,001+ employees

That's really saved us in certain areas as we didn't have funding to expand Dell PowerScale (Isilon) until next year, which is why we utilized the cloud pools functionality to offload.

Scott Taylor

Senior Infrastructure Specialist at a healthcare company with 10,001+ employees

Dell PowerScale is highly scalable, as evidenced by the reduced physical hardware and the efficient use of rack space.

Md Shakil Khan

Senior Engineer at Continental Tire

For more quotes and insights, download the Dell PowerScale (Isilon) report

This means you don't have to buy everything upfront; you can buy what you need and add more as you grow, which is advantageous.

ChrisGeaghan

Sales engineer at a tech vendor with 201-500 employees

These three components utilize scalability tools, enabling storage addition to nodes and supporting independent, linear performance growth.

Amarnath Charugundla

System Engineer at Tata Consultancy

I find the scalability of Nutanix Unified Storage (NUS) to be excellent, and I would rate it a ten based on my clients' requirements.

SaurabhShukla

Technical Lead at Cognizant

For more quotes and insights, download the Nutanix Unified Storage (NUS) report

Stability Issues

Sentiment score

8.1

Pure Storage FlashBlade offers exceptional reliability and impressive stability, featuring 99.999% uptime, seamless upgrades, and high performance.

Sentiment score

8.0

Dell PowerScale impresses with high uptime, reliability, and adaptability, making it ideal for stable business operations and data integrity.

Sentiment score

8.0

Nutanix Unified Storage is stable and reliable, offering smooth upgrades, quick issue resolution, and effective technical support.

In case there is any issue with any blade, the data is moved to another.

For more quotes and insights, download the Pure Storage FlashBlade report

IT Field Support Engineer at a tech vendor with 10,001+ employees

Since we have good protection levels, the data is secured and replicated across the disks.

Mazen Jamal Eddine

Pre-Sale Engineer at Arab Operators

I assess the stability and reliability of Dell PowerScale (Isilon) as perfect.

Cheyne Skapyak

Storage & Data Protection Specialist at General Dynamics Land Systems

I find the product to be resilient and stable. There's no downtime and no crashes.

Scott Taylor

Senior Infrastructure Specialist at a healthcare company with 10,001+ employees

For more quotes and insights, download the Dell PowerScale (Isilon) report

We have not experienced these issues with Nutanix, which I attribute to the all-flash technology, the quality of their platform, and the responsiveness of the hyper-converged infrastructure.

Ryan Adams

System Administrator II at a manufacturing company with 10,001+ employees

Nutanix Unified Storage (NUS) is very stable.

Ashish Savaratkar

Senior System Administrator at a tech vendor with 1,001-5,000 employees

It automatically triggers tasks, causing performance issues.

reviewer2700540

Nutanix Engineer at a manufacturing company with 10,001+ employees

For more quotes and insights, download the Nutanix Unified Storage (NUS) report

Room For Improvement

Users recommend better pricing, cloud integration, support, documentation, and analytics for Pure Storage FlashBlade, improving efficiency and compatibility.

Dell PowerScale (Isilon) needs cost reduction, simpler configuration, better scalability, improved interface, and enhanced cloud integration.

Nutanix Unified Storage requires upgrades in storage capabilities, ease of use, FTP compatibility, analytics, security, support, and pricing.

Technical support definitely needs significant improvement.

Senior Network Engineer at Holy Redeemer Health System, Inc.

Its configuration should be easier.

IT Field Support Engineer at a tech vendor with 10,001+ employees

One way Pure Storage FlashBlade can be improved is by having more compatibility between the FlashArray and FlashBlade.

For more quotes and insights, download the Pure Storage FlashBlade report

IT Manager at Regin Dalarna

Hardware failures under warranty should be addressed within the promised timeline.

Md Shakil Khan

Senior Engineer at Continental Tire

I would want to see more AI features with Dell PowerScale (Isilon).

Cheyne Skapyak

Storage & Data Protection Specialist at General Dynamics Land Systems

If I could improve one thing on Dell PowerScale (Isilon), it would be better object storage as it recently breached into S3, and that capability could be broadened.

reviewer2706753

Senior System Engineer at a healthcare company with 10,001+ employees

For more quotes and insights, download the Dell PowerScale (Isilon) report

The main concern is pricing, which could deter some customers; addressing this would enhance its appeal.

Mrudula Oruganti

Senior Solution Software Engineer at Gigamon

The system should move towards AI-driven optimization and enhance S3 object storage capabilities.

Sukhwinder-Singh

Corporate Trainer at a educational organization with 501-1,000 employees

System downtime can disturb the entire ecosystem and impact all applications.

Amarnath Charugundla

System Engineer at Tata Consultancy

For more quotes and insights, download the Nutanix Unified Storage (NUS) report

Setup Cost

Pure Storage FlashBlade is costly but valued for performance, reliability, and reduced administrative overhead, justifying its premium price.

Dell PowerScale's cost is justified by its features, scalability, and flexible licensing, catering to diverse performance needs.

Nutanix Unified Storage offers competitive pricing, appreciated for cost-effectiveness, but may be expensive for small businesses or specific regions.

The pricing of Pure Storage FlashBlade is expensive compared to other products I used from other companies in the past, but one benefit is that they have built-in ransomware protection.

Senior Network Engineer at Holy Redeemer Health System, Inc.

Regarding pricing, it is okay; we needed exactly this in size, and the price was a lot lower than competitors, making it good for us.

For more quotes and insights, download the Pure Storage FlashBlade report

IT Manager at Regin Dalarna

It's quite expensive for the amount of storage we have.

Scott Taylor

Senior Infrastructure Specialist at a healthcare company with 10,001+ employees

My experience with pricing, setup costs, and licensing for Dell PowerScale (Isilon) shows it's a premium platform, so it's a big amount of money.

Uli Betzler

Storage Architect at a educational organization with 10,001+ employees

The pricing is excellent.

Andrew R.

Director, Information & Communication Technology & Digital Transformation at a educational organization with 201-500 employees

For more quotes and insights, download the Dell PowerScale (Isilon) report

Compared to buying three or four vendor solutions, it is much cheaper.

Tom Hiles

Senior Manager, IT Infrastructure & Support at a tech services company with 501-1,000 employees

The cost has doubled for the same amount of data, which was a challenge when presenting use case justifications for the increased cost.

Ryan Salaheddine

Infrastructure Architect & Manager at a real estate/law firm with 201-500 employees

Nutanix Unified Storage (NUS) has definitely helped reduce our total cost of ownership.

Nidhi Lnu

Information Technology Managed Services Provider at SCE

For more quotes and insights, download the Nutanix Unified Storage (NUS) report

Valuable Features

Pure Storage FlashBlade excels with ease of use, fast performance, scalability, seamless integration, and efficient storage features.

Dell PowerScale provides scalable, efficient management, robust security, and seamless integration, enhancing data storage and protection across platforms.

Nutanix Unified Storage offers scalability, efficiency, robust security, seamless cloud integration, and simplifies IT management, enhancing storage reliability.

We can plug in many blades, and we can have data up to one terabyte.

IT Field Support Engineer at a tech vendor with 10,001+ employees

The best features of Pure Storage FlashBlade include better throughput and better performance.

Senior Network Engineer at Holy Redeemer Health System, Inc.

Pure Storage FlashBlade's scalability is one of the most valuable features, and importantly, it always works, allowing for seamless upgrades.

For more quotes and insights, download the Pure Storage FlashBlade report

IT Manager at Regin Dalarna

Dell PowerScale offers high scalability and stability as well, making it a valuable solution for enterprises.

Atif Pervaiz

Senior System Engineer at Atlas Security

In our AI initiatives, Dell PowerScale (Isilon) plays a significant role in data analysis, data fusion; principally, it is involved in data analysis, data extraction, and statistical analysis.

reviewer2689287

Senior Technologist at a university with 1,001-5,000 employees

Single files are limited to four terabytes in our configuration, however, the system can support up to 16 terabytes, so we can scale based on that too.

Bill Engelmeyer

Systems Engineer at Unisity LLC

For more quotes and insights, download the Dell PowerScale (Isilon) report

Nutanix Unified Storage (NUS) is appreciated for its fault tolerance and redundancy at the cluster level, which ensures reliable storage of files, folders, and other information accessible on the client side.

reviewer2700540

Nutanix Engineer at a manufacturing company with 10,001+ employees

The cybersecurity features of Nutanix Unified Storage (NUS) when dealing with unstructured data, such as ransomware threats, provide the ability to detect and back up block-based storage, allowing me to restore repositories or sets of block storage with one button click, which is automatic.

Andrew Essien

Network Engineer at Alabama A & M University

My experience with using Nutanix Unified Storage (NUS) for data-intensive workloads is that we have many SQL Servers and they perform much better than they did when we used hybrid converged previously.

Tom Hiles

Senior Manager, IT Infrastructure & Support at a tech services company with 501-1,000 employees

For more quotes and insights, download the Nutanix Unified Storage (NUS) report

Categories and Ranking

Pure Storage FlashBlade

Mindshare comparison

As of December 2025, in the File and Object Storage category, the mindshare of Pure Storage FlashBlade is 5.2%, down from 6.2% compared to the previous year. The mindshare of Dell PowerScale (Isilon) is 7.7%, down from 8.3% compared to the previous year. The mindshare of Nutanix Unified Storage (NUS) is 2.7%, up from 2.6% compared to the previous year. It is calculated based on PeerSpot user engagement data.

File and Object Storage Market Share Distribution
Product	Market Share (%)
Dell PowerScale (Isilon)	7.7%
Nutanix Unified Storage (NUS)	2.7%
Pure Storage FlashBlade	5.2%
Other	84.4%

File and Object Storage

Featured Reviews

Has handled backup storage needs reliably and supports seamless upgrades

IT Manager at Regin Dalarna

In environments requiring high throughput and low latency, Pure Storage FlashBlade provides high throughput and normal latency, but we do not have any application that requires low latency right now, so the latency of three to five milliseconds is considered kind of high. Pure Storage FlashBlade's ability to integrate with enterprise applications is not important for us, as we only want to present an S3 bucket for our backup, which we have done, and it works very fast. We use the Purity software's data reduction techniques; we have a backup software that compresses everything before sending it to the S3 bucket, achieving a data reduction of 1.1 to one. I would recommend Pure Storage FlashBlade to other companies because it's a very fast and scalable solution for anyone who needs it. On a scale of 1-10, I rate this solution an 8.

Read full review

Bill Engelmeyer

Systems Engineer at Unisity LLC

Flexibility and reliability have supported seamless data growth

I cannot think of anything to improve about Dell PowerScale (Isilon). The hardest challenge we have is due to how we've bought things over time. The way that we moved to the PowerEdge platform for the newer systems creates a scale problem as I still buy the older style systems, which are more dense storage. They're different chassis, so the problem we run into in the data center is the depth of the actual equipment. The newer equipment, if we buy an FX910 or a 900, it's a lot shorter in scale than if I buy an 83,000, which is much bigger. This makes it more complicated for deployment.

Read full review

Amarnath Charugundla

System Engineer at Tata Consultancy

Unified management and cost-effectiveness lead to positive experiences and future savings

Improvement is necessary wherein the memory or storage should not breach 90%, because if breached, it becomes unmanageable. We have to set alerts or CPU triggering for 95% for the first warning. Other activities on nodes or file systems should be properly maintained. We must monitor the dashboard for P1, P2 alerts in the Nutanix Unified Storage (NUS) file share system including SMB, NFS, objects, and blocks. Attention should be maintained for any alerts such as CPU, memory, and RAM alerts, as exceeding these creates issues within teams. If triggered to 95% and forgotten, it crosses the SLA breach, causing disturbances to application, web, and platform teams. Continuous monitoring on the Nutanix dashboard is essential. Even a highly experienced person in Nutanix Unified Storage (NUS) cannot provide a 10 rating out of 10 because it is a vast system. I would rate it eight from my perspective.

Read full review

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879,259 professionals have used our research since 2012.

Top Industries

By visitors reading reviews

Financial Services Firm

11%

Computer Software Company

10%

Manufacturing Company

10%

Government

Computer Software Company

12%

Manufacturing Company

11%

Financial Services Firm

Government

Computer Software Company

24%

Manufacturing Company

12%

Educational Organization

University

Company Size

By reviewers

Large Enterprise

Midsize Enterprise

Small Business

By reviewers
Company Size	Count
Small Business	11
Midsize Enterprise	11
Large Enterprise	21

By reviewers
Company Size	Count
Small Business	17
Midsize Enterprise	18
Large Enterprise	39

By reviewers
Company Size	Count
Small Business	27
Midsize Enterprise	30
Large Enterprise	63

Questions from the Community

What do you like most about Pure Storage FlashBlade?

The tool's most valuable feature is its fast performance, especially in handling snapshots. It helps during power out...

What is your experience regarding pricing and costs for Pure Storage FlashBlade?

Regarding pricing, it is okay; we needed exactly this in size, and the price was a lot lower than competitors, making...

What needs improvement with Pure Storage FlashBlade?

In my opinion, one way Pure Storage FlashBlade can be improved is by having more compatibility between the FlashArray...

What do you like most about Dell EMC PowerScale (Isilon)?

The solution provides massive performance, scalability, efficiency, and ease of management.

What is your experience regarding pricing and costs for Dell EMC PowerScale (Isilon)?

As for my experience with the pricing, setup cost, and licensing, we have had Dell PowerScale (Isilon) for a while no...

What needs improvement with Dell EMC PowerScale (Isilon)?

Dell PowerScale (Isilon) can be improved by enhancing the ability for more native data mover technologies that offer ...

What do you like most about Nutanix Unified Storage?

Nutanix has excellent product documentation available on their portals, written in simple, easy-to-understand language.

What is your experience regarding pricing and costs for Nutanix Unified Storage?

It is very cost-effective compared to the traditional environment. With new hardware, it's a long-term investment but...

What needs improvement with Nutanix Unified Storage?

To improve Nutanix Unified Storage (NUS), cost is always an issue for every company, especially when we talk about la...

Pure Storage FlashArray vs Pure Storage FlashBlade

Comparisons

Compared 11% of the time

MinIO vs Pure Storage FlashBlade

Compared 9% of the time

Red Hat Ceph Storage vs Pure Storage FlashBlade

Compared 7% of the time

VAST Data vs Pure Storage FlashBlade

Compared 7% of the time

Pure FlashArray X NVMe vs Pure Storage FlashBlade

Compared 2% of the time

More Pure Storage FlashBlade Competitors

NetApp FAS Series vs Dell PowerScale (Isilon)

Compared 16% of the time

Qumulo vs Dell PowerScale (Isilon)

Compared 7% of the time

Dell ObjectScale vs Dell PowerScale (Isilon)

Compared 6% of the time

HPE StoreEasy vs Dell PowerScale (Isilon)

Compared 5% of the time

IBM FlashSystem vs Dell PowerScale (Isilon)

Compared 3% of the time

More Dell PowerScale (Isilon) Competitors

Red Hat Ceph Storage vs Nutanix Unified Storage (NUS)

Compared 9% of the time

Microsoft Storage Spaces Direct vs Nutanix Unified Storage (NUS)

Compared 9% of the time

Amazon S3 vs Nutanix Unified Storage (NUS)

Compared 6% of the time

MinIO vs Nutanix Unified Storage (NUS)

Compared 6% of the time

Qumulo vs Nutanix Unified Storage (NUS)

Compared 4% of the time

More Nutanix Unified Storage (NUS) Competitors

Product Reports

Pure Storage FlashBlade

Download Pure Storage FlashBlade product report

Dell PowerScale (Isilon)

Download Dell PowerScale (Isilon) product report

Nutanix Unified Storage (NUS)

Download Nutanix Unified Storage (NUS) product report

Also Known As

No data available

PowerScale, Dell EMC Isilon

Nutanix Files Storage, Nutanix Volumes Block Storage, Nutanix Objects Storage

Overview

FlashBlade is the industry’s most advanced scale-out storage for unstructured data, powered by a modern, massively parallel architecture to consolidate complex data silos (like backup appliances and data lakes) and accelerate tomorrow’s discoveries and insights.

Pure Storage

Dell PowerScale leads in unstructured data management with unified file and object storage, massive scalability, security, and cloud adaptability, enhancing AI, analytics, and enterprise applications with exceptional performance and resilience.

Dell PowerScale Isilon provides a comprehensive platform for unstructured data, excelling in scalability, management, and performance. With features like single-pane management, SyncIQ, and SmartQuotas, it handles large datasets with flexibility and robust security. Its multi-protocol support and seamless expansion improve operational efficiency. While it offers strong data protection, enhancements in cloud integration, cybersecurity, and performance are sought. Users note potential for cost reductions and streamlined configurations and mention desired improvements in object storage handling and NFS support.

What are the key features of Dell PowerScale Isilon?

Single-pane management: Simplifies data control and monitoring through a unified interface.
SyncIQ: Ensures efficient data replication for business continuity.
SmartQuotas: Provides intelligent quota management for optimized storage allocation.
Multi-protocol support: Facilitates cross-platform data access and integration.
Seamless storage expansion: Allows effortless scaling to accommodate growing data needs.

What benefits should users consider when reviewing Dell PowerScale Isilon?

Operational efficiency: Reduces workload with easy management and automation.
Enhanced security: Offers comprehensive data protection and recovery options.
Scalability: Supports large-scale data storage with flexible growth capabilities.
Performance: Delivers high-speed data processing for demanding applications.
Integration flexibility: Adapts to on-prem and hybrid cloud environments for diverse deployment needs.

Organizations across industries utilize Dell PowerScale Isilon for large-scale unstructured storage, supporting applications like video archiving, genomic data storage, and high-resolution imaging. Educational institutions, research centers, and media enterprises rely on its scaled-out storage capabilities, providing centralized, secure storage for diverse applications in hybrid, cloud, and on-prem environments.

Dell Technologies

Nutanix Unified Storage offers seamless scalability and high availability with a user-friendly interface, supporting multi-protocol operations while integrating effortlessly with cloud platforms. It enhances performance and security with features like ransomware protection and advanced data management.

Nutanix Unified Storage streamlines storage management by consolidating infrastructure and optimizing virtualization. It reduces operational complexity and enhances performance across diverse workloads. Despite feedback on integration challenges and suggestions for improving pricing, API capabilities, and security, it remains a key choice for dependable storage solutions. Calls for streamlined implementation and enhanced AI capabilities reflect its potential to better support evolving organizational strategies, driving cost efficiency and data accessibility.

What are the key features of Nutanix Unified Storage?

Intuitive Interface: Simplifies management with easy navigation.
High Availability: Ensures minimal downtime and reliable performance.
Seamless Scalability: Adapts to increasing data requirements effortlessly.
Multi-Protocol Support: Facilitates comprehensive operations across different systems.
Advanced Security: Offers ransomware protection and secure data backup.
Cloud Integration: Allows smooth interaction with cloud platforms.

What benefits and ROI should users evaluate?

Operational Efficiency: Reduced complexity through streamlined management.
Cost Optimization: Achieved via data compression and consolidation.
Enhanced Data Visibility: Improved insights with advanced data lens.
Performance Improvement: Significant uplift in workload handling and database performance.
Scalable Infrastructure: Enables growth and adaptation to changing demands.

In industries, Nutanix Unified Storage is deployed to centralize storage needs, improve database efficiency, and enhance file sharing and security. Organizations use it to consolidate infrastructure, support virtualization, optimize costs, and facilitate virtual machine hosting. It's instrumental in scalable object storage, ransomware protection, integrating legacy systems, and catering to critical applications.

Nutanix

Sample Customers

ServiceNow, Mercedes-AMG Petronas Motorsport, Dominos, Man AHL

OMRF, University of Utah, Translational Genetics Research Institute, Arcis, Geofizyka Torumn, Cyprus E&P Corporation, Colburn School, Columbia Sportswear, Harvard Medical School, University of Michigan, National Library of France,

JetBlue, International Speedway Corporation, Volkswagen SAIC, Brighton and Hove City Council, Foresters Financial, Janus International Group, Cloud Comrade, Serco

Dell PowerScale (Isilon) vs. Nutanix Unified Storage (NUS)