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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 cutting costs, enhancing efficiency, improving management, and strengthening data security for users.
Sentiment score
7.8
Pure Storage FlashArray enhances efficiency, lowers costs, and boosts ROI with simple management, data reduction, and evergreen updates.
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 support is responsive and knowledgeable, though complex issue resolution can occasionally face delays.
Sentiment score
8.7
Pure Storage FlashArray is praised for excellent, responsive customer support, offering swift issue resolution and proactive problem identification.
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 is highly scalable and flexible, allowing seamless expansion and integration without downtime, despite initial complexity.
Sentiment score
7.8
Pure Storage FlashArray offers seamless scalability, ease of upgrades, and efficient storage, satisfying diverse enterprise needs with flexible growth options.
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 praised for stability, high availability, and minimal disruptions, ensuring dependable performance and quick support resolution.
Sentiment score
8.0
Pure Storage FlashArray is praised for its stability, reliability, 100% uptime, and efficient support with minimal downtime issues.
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.
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.
I encountered instances where the entire cluster went down due to workload and throughput issues.
 

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 enhancements in implementation, analysis, technical support, FTP compatibility, management, integration, security, and usability.
Pure Storage FlashArray needs improvements in scalability, cloud integration, user controls, pricing, and compatibility with VMware and third-party environments.
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.
Currently, the limited selection of on-premise instruments hinders Pure Storage FlashArray's ability to compete effectively with other vendors.
 

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, valued for features and ROI, but may be costly for smaller users.
Pure Storage FlashArray is costly but valued for performance, all-inclusive features, and efficiency-enhancing Evergreen upgrades.
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.
The cost of Pure FlashArray is a bit high compared to peers, but its sustainability and features justify the price.
We lost a lot of customers because we couldn't compete on price with other vendors.
 

Valuable Features

Pure FlashArray X NVMe offers exceptional performance, reliability, scalability, and seamless VMware integration, enhancing workload efficiency and user experience.
Nutanix Unified Storage delivers easy management, high availability, and integration with robust security and flexible storage options.
Pure Storage FlashArray offers fast, user-friendly data management with exceptional performance, scalability, and integration, ensuring efficient and reliable operations.
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
113
Ranking in other categories
Software Defined Storage (SDS) (3rd), Public Cloud Storage Services (5th), File and Object Storage (3rd), NVMe All-Flash Storage Arrays (4th)
Pure Storage FlashArray
Ranking in All-Flash Storage
4th
Average Rating
9.2
Reviews Sentiment
7.8
Number of Reviews
199
Ranking in other categories
No ranking in other categories
 

Mindshare comparison

As of August 2025, in the All-Flash Storage category, the mindshare of Pure FlashArray X NVMe is 0.9%, up from 0.8% compared to the previous year. The mindshare of Nutanix Unified Storage (NUS) is 0.7%, up from 0.2% compared to the previous year. The mindshare of Pure Storage FlashArray is 6.6%, down from 7.5% compared to the previous year. It is calculated based on PeerSpot user engagement data.
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.
Nabeel Sayegh - PeerSpot reviewer
Supercharges enterprise storage by way of highly optimized hardware, comprehensive data management and a feature rich interface.
During their early years, I was a member of Pure's Customer Advisory Board. In addition, when we first adopted Pure, they did not have replication GA yet. We got into their beta testing program and help them work out certain issues with that technology. One weakness I can say the array has, still to this day, is limited control on scheduling snapshots. Depending on the type of replication schedule you are building, you may or may not have control on specifying the start time of a given replication schedule. This is not a very big problem in the grand scheme of things, but something nonetheless that has bothered me about the scheduler in general. Another area for improvement would be automatic host alias creation. Other platforms such as EMC Unity/PowerStore will automatically detect the host name, create a alias for it and associate the logged in HBA's to it. Pure does not do this for you and as a result, requires manual configuration. This can be very time consuming especially when you are deploying a large number of new servers.
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Top Industries

By visitors reading reviews
Computer Software Company
14%
Manufacturing Company
10%
Financial Services Firm
10%
Government
6%
Computer Software Company
30%
Manufacturing Company
8%
Educational Organization
6%
Financial Services Firm
5%
Computer Software Company
17%
Manufacturing Company
12%
Financial Services Firm
9%
Government
7%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
 

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?
I have no idea about the pricing of Nutanix Unified Storage (NUS) as I'm not the decision authority for pricing. Gene...
What needs improvement with Nutanix Unified Storage?
While there are good aspects, I would like to see improvements in networking configuration, particularly regarding ov...
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: July 2025.
865,384 professionals have used our research since 2012.