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Nutanix Unified Storage (NUS) vs Pure Storage FlashArray comparison

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Comparison Buyer's Guide

Executive SummaryUpdated on Sep 18, 2024

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
1.0
Organizations reduced costs and improved performance with Pure FlashArray X NVMe, achieving quick ROI and efficient resource management.
Sentiment score
6.9
Nutanix Unified Storage boosts ROI by reducing costs, enhancing uptime, scalability, and efficiency, while improving data management and productivity.
Sentiment score
3.9
Pure Storage FlashArray offers cost-efficient performance and management, reducing labor, enhancing data compression, and providing long-term value.
By opting for the gold subscription every three years, you get a free upgrade to the latest controller release.
If you wait more than seven years to buy another one, you get a return on your investment.
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.
The scalability challenge with previous systems is lessened with Nutanix since we can expand by adding new hardware without needing migrations.
We are saving approximately 20% to 25% compared with the competition.
In the long term, spanning three to five years, the total cost of ownership becomes cheaper, considering power consumption, data center footprint, and NVMe technology usage.
We have seen a return on investment as the solution has reduced resource requirements, allowing less experienced personnel to manage the storage.
 

Customer Service

Sentiment score
7.1
Pure FlashArray X NVMe's technical support is praised for responsiveness, despite occasional follow-up issues, earning high customer satisfaction.
Sentiment score
7.5
Nutanix Unified Storage customer service is efficient and knowledgeable, with high satisfaction but room for improvement in complex cases.
Sentiment score
8.0
Pure Storage FlashArray's customer service is proactive, knowledgeable, and responsive, earning high satisfaction and reliability from clients.
We also had one outage where a controller of one of the products had failed and had to be replaced on-site.
Customers always have their issues resolved promptly.
Pure has good storage.
They come on the call, start troubleshooting immediately, and resolve issues effectively.
They are very knowledgeable, and if they can't solve the problem, they find the answer within a day or so.
I would give the customer service and technical support a ten out of ten.
Pure's support organization is responsive with minimal bureaucracy, making support a key factor in customer retention.
The support from Pure Storage is excellent.
Opening a case with Pure is a smooth process, and they prove to be reliable, even in severe cases where infrastructure issues arise.
 

Scalability Issues

Sentiment score
7.1
Pure FlashArray X NVMe offers scalable storage with low latency, easy upgrades, though capacity customization and high costs are noted.
Sentiment score
7.8
Nutanix Unified Storage offers scalable, efficient, and stable storage expansion with easy integration and intuitive licensing for diverse environments.
Sentiment score
7.4
Pure Storage FlashArray offers seamless scalability and flexibility with non-disruptive upgrades, benefiting diverse environments across multiple expansions.
It is highly scalable.
It is suitable for both medium-sized and enterprise businesses.
It hasn't broken down anytime in the last six to seven years, despite hurricanes, earthquakes, and power outages.
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.
These three components utilize scalability tools, enabling storage addition to nodes and supporting independent, linear performance growth.
I find the scalability of Nutanix Unified Storage (NUS) to be excellent, and I would rate it a ten based on my clients' requirements.
A big banking client had around 300 petabytes of data on Pure Storage.
The solution is highly scalable, particularly when there is a need to expand capacity.
I rate FlashArray's scalability nine out of 10.
 

Stability Issues

Sentiment score
8.1
Pure Storage offers exceptional stability and reliability with outstanding support, consistently achieving high user ratings for performance and service.
Sentiment score
8.0
Nutanix Unified Storage is stable and reliable, offering smooth upgrades, quick issue resolution, and effective technical support.
Sentiment score
8.3
Pure Storage FlashArray is praised for reliability, minimal downtime, seamless upgrades, and excellent performance under high-demand conditions.
During the eight years, there have been no problems such as hardware failure or stopping.
I would rate the stability of the solution as a ten out of ten.
I would rate the stability of the product at seven out of ten.
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.
Nutanix Unified Storage (NUS) is very stable.
It automatically triggers tasks, causing performance issues.
For stability, I rate it a ten out of ten.
I have not encountered any significant issues, such as applying firmware that introduces bugs.
Stability has never been an issue except for minor controller glitches causing failover events, similar to brakes and tires on a car.
 

Room For Improvement

Pure FlashArray X requires cost-effective improvements in UI, integration, cloud features, multitenancy, analytics, backup, AI, and scalability.
Nutanix Unified Storage requires upgrades in storage capabilities, ease of use, FTP compatibility, analytics, security, support, and pricing.
Pure Storage FlashArray needs scalability, unified management, integrations, enhanced features, cost-effectiveness, and improved performance, analytics, and documentation.
We would appreciate a built-in transparent failover in the next release to eliminate the need for a separate metro cluster.
I'm eagerly anticipating the roadmap's promise of introducing multiple controllers, which could significantly boost scalability and resilience.
We mostly rely on long-term releases. We don't need the most up-to-date features, but we need a reliable environment.
The main concern is pricing, which could deter some customers; addressing this would enhance its appeal.
The system should move towards AI-driven optimization and enhance S3 object storage capabilities.
System downtime can disturb the entire ecosystem and impact all applications.
Integrating object storage into the FlashArray would benefit entry-level and SMB customers by offering a more unified solution.
Storing cold data on expensive arrays doesn't make financial sense, and tiering to any of the big three cloud providers would be advantageous.
As a technical professional, I lack visibility into the system logs.
 

Setup Cost

Enterprise buyers see Pure FlashArray X NVMe as a justified premium investment due to performance and comprehensive licensing.
Nutanix Unified Storage offers competitive pricing, appreciated for cost-effectiveness, but may be expensive for small businesses or specific regions.
Pure Storage FlashArray is costly but offers high value with performance, support, and upgrades, ideal for high-performance needs.
While the prices may be higher than those of other vendors, we see it as a market leader with benefits.
The support can be a bit pricey, but the solution is more cost-effective than anything else out there.
I would give it a nine out of ten in terms of costliness.
Compared to buying three or four vendor solutions, it is much cheaper.
The cost has doubled for the same amount of data, which was a challenge when presenting use case justifications for the increased cost.
Nutanix Unified Storage (NUS) has definitely helped reduce our total cost of ownership.
They're expensive.
While they say it's free, we actually pay for support upfront.
The cost of Pure FlashArray is a bit high compared to peers, but its sustainability and features justify the price.
 

Valuable Features

Pure FlashArray X NVMe offers exceptional performance, reliability, scalability, and seamless VMware integration, enhancing workload efficiency and user experience.
Nutanix Unified Storage offers scalability, efficiency, robust security, seamless cloud integration, and simplifies IT management, enhancing storage reliability.
Pure Storage FlashArray offers impressive data reduction, speed, and ease of use, with strong integration, scalability, and customer support features.
Pure Storage has signature security technology, which cannot be deleted, even if you are an administrator.
The platform's robust features include excellent sustainability tracking, and a comprehensive dashboard offering insights into IOPS, bandwidth, performance, and virtual activities.
Its data compression feature is the best that we have ever seen.
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.
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.
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.
FlashArray's integration with the Pure One instrument provides a centralized platform for efficient management of all arrays.
Another noteworthy aspect is their platform, Pure One, a cloud-based analytics platform that automatically creates a case and sends out a part if a disk or controller fails.
It handles internal data migration seamlessly in the background without going offline, achieving a hundred percent uptime.
 

Categories and Ranking

Pure FlashArray X NVMe
Sponsored
Ranking in All-Flash Storage
14th
Average Rating
9.0
Reviews Sentiment
6.7
Number of Reviews
36
Ranking in other categories
NVMe All-Flash Storage Arrays (6th)
Nutanix Unified Storage (NUS)
Ranking in All-Flash Storage
5th
Average Rating
8.8
Reviews Sentiment
7.2
Number of Reviews
114
Ranking in other categories
Software Defined Storage (SDS) (3rd), Public Cloud Storage Services (5th), File and Object Storage (2nd), NVMe All-Flash Storage Arrays (4th)
Pure Storage FlashArray
Ranking in All-Flash Storage
4th
Average Rating
9.0
Reviews Sentiment
7.3
Number of Reviews
202
Ranking in other categories
No ranking in other categories
 

Mindshare comparison

As of October 2025, in the All-Flash Storage category, the mindshare of Pure FlashArray X NVMe is 1.0%, up from 0.7% compared to the previous year. The mindshare of Nutanix Unified Storage (NUS) is 0.8%, up from 0.4% compared to the previous year. The mindshare of Pure Storage FlashArray is 6.4%, down from 7.0% compared to the previous year. It is calculated based on PeerSpot user engagement data.
All-Flash Storage Market Share Distribution
ProductMarket Share (%)
Pure Storage FlashArray6.4%
Nutanix Unified Storage (NUS)0.8%
Pure FlashArray X NVMe1.0%
Other91.8%
All-Flash Storage
 

Featured Reviews

Jaehoon Oh - PeerSpot reviewer
Supports efficient storage management through volume snapshots and offers reliable non-disruptive upgrades
I have no specific improvements to suggest for Pure FlashArray X NVMe at this time. The performance statistics could be enhanced. I can see the performance statistics in the Pure Storage console, but it does not show the performance by 4K byte unit. It displays IOPS and bandwidth, but IOPS is about real use, and I want to know how many IOPS are currently running in 4K byte units. I cannot see that IOPS because most storage systems report their performance by 4K byte unit. I want to see Pure Storage performance by 4K byte unit to compare with other storage or other internal NVMe SSD.
Amarnath Charugundla - PeerSpot reviewer
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.
Parul-Patel - PeerSpot reviewer
Expands capacity and requires minimal management
The main drawback is the support. I’ve been working for four years without a local representative, and although I’ve submitted many requests, nothing has changed. They sometimes call me in the middle of the night, even though I’ve informed them about my working hours. I often raise cases to speak with someone directly because I prefer to discuss issues over the phone rather than via email. I specifically request them to call me when I open a ticket, but they continually reply by email instead. This ongoing situation has been very frustrating in terms of the support I receive. As a technical professional, I lack visibility into the system logs. Whenever an issue arises, a ticket is opened for us. While I'm glad they take this step, it can be frustrating. They inform me, “Hey, we opened this ticket for you. It’s critical. Call me so we can discuss what’s going on.” However, as a product manager for my institution, I don’t have access to the logs, which are withheld due to, as they say, proprietary code. I understand that, but I have been working in storage for many years and am not new to this field. In fact, I spent 17 years at IBM Storage, dealing with large enterprise systems, not just small vendor products. I wish I could access the normal logs to diagnose issues myself, rather than relying solely on their information. Before I can escalate issues or open a checklist, I need to have a clear understanding of what’s happening based on the logs. Sometimes the situation feels rushed, and I end up having to push my support team for answers. There are moments when I feel like I’m left in the dark about the log details until I actually call them for clarification. It can be quite challenging. Pure Storage can improve FlashArray by providing more logging visibility to customers. Currently, there is no log visibility. They could include an audit log, but I cannot see any system logs when problems occur.
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Top Industries

By visitors reading reviews
Computer Software Company
13%
Manufacturing Company
11%
Financial Services Firm
10%
Government
6%
Computer Software Company
28%
Manufacturing Company
9%
Educational Organization
6%
Financial Services Firm
5%
Computer Software Company
16%
Manufacturing Company
12%
Financial Services Firm
10%
Government
7%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business15
Midsize Enterprise11
Large Enterprise12
By reviewers
Company SizeCount
Small Business27
Midsize Enterprise30
Large Enterprise63
By reviewers
Company SizeCount
Small Business60
Midsize Enterprise34
Large Enterprise137
 

Questions from the Community

What do you like most about Pure FlashArray X NVMe?
Pure FlashArray X NVMe helps to improve our processing speed. It is user-friendly and easy to use.
What is your experience regarding pricing and costs for Pure FlashArray X NVMe?
The price of Pure FlashArray X NVMe is very expensive, though I do not know the actual price because I am using the E...
What needs improvement with Pure FlashArray X NVMe?
I have no specific improvements to suggest for Pure FlashArray X NVMe at this time. The performance statistics could ...
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?
The cybersecurity features are used for protecting unstructured data against threats such as ransomware.
Which should I choose: HPE 3PAR StoreServ or Hitachi Virtual Storage Platform F Series?
Both are great platforms, but if you are considering all flash solutions, I would recommend you to consider Pure Stor...
What do you like most about Pure Storage FlashArray?
We consume less physical storage because of the solution’s deduplication and compression.
What is your experience regarding pricing and costs for Pure Storage FlashArray?
I don't have the billing details right now, but the pricing is high.
 

Also Known As

Pure FlashArray//X NVMe, Pure FlashArray//X, FlashArray//X
Nutanix Files Storage, Nutanix Volumes Block Storage, Nutanix Objects Storage
No data available
 

Overview

 

Sample Customers

Fremont Bank, Judson ISD, The Nielsen Company
JetBlue, International Speedway Corporation, Volkswagen SAIC, Brighton and Hove City Council, Foresters Financial, Janus International Group, Cloud Comrade, Serco
Nielsen, Lamar Advertising, LinkedIn, Betfair, UT-Dallas
Find out what your peers are saying about Nutanix Unified Storage (NUS) vs. Pure Storage FlashArray and other solutions. Updated: September 2025.
869,566 professionals have used our research since 2012.