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IBM Spectrum Scale vs Nutanix Unified Storage (NUS) comparison

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Comparison Buyer's Guide

Executive SummaryUpdated on Dec 5, 2024

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
Sponsored
Average Rating
9.0
Reviews Sentiment
7.2
Number of Reviews
232
Ranking in other categories
All-Flash Storage (3rd)
IBM Spectrum Scale
Average Rating
8.4
Reviews Sentiment
7.1
Number of Reviews
14
Ranking in other categories
Software Defined Storage (SDS) (11th), Cloud Software Defined Storage (1st)
Nutanix Unified Storage (NUS)
Average Rating
8.8
Reviews Sentiment
7.2
Number of Reviews
119
Ranking in other categories
All-Flash Storage (8th), Software Defined Storage (SDS) (2nd), Public Cloud Storage Services (3rd), File and Object Storage (3rd), NVMe All-Flash Storage Arrays (4th)
 

Featured Reviews

Sowjanya MV - PeerSpot reviewer
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.
Sachin Prakash - PeerSpot reviewer
Assistant Consultant at a tech vendor with 10,001+ employees
Has optimized performance using cluster deployment and distributed file access but needs better visibility into network dependencies
IBM Spectrum Scale being software-based storage allows users to utilize any hardware supported or defined by IBM without dependency on physical hardware provided by IBM. This is one of the features I appreciate most because if you have existing infrastructure at your site but don't want to reinvest in hardware, you can purchase IBM Spectrum Scale software and deploy it as software-defined storage. Users can comfortably access data from their host to the storage host without relying on new network setup when deploying GPFS as it uses the existing corporate network. However, high-speed ethernet network is required. By adding switches to the same network where client hosts reside and deploying GPFS storage array, any file system created on the storage cluster can grant export permissions determining which hosts can access specific file systems. These hosts can directly mount them as remote file systems. The process is simpler compared to defining IQN for providing access to client hosts. Creating a cluster for clients with virtual machines or physical Linux/Windows machines requires installing GPFS services on client nodes, which creates a client cluster. Access is defined on the storage cluster for the particular client cluster, allowing all hosts in that client cluster to mount file systems with granted permissions.
NISHANTPANCHAL - PeerSpot reviewer
Principle Technical Specialist at a comms service provider with 1,001-5,000 employees
Unified storage has simplified private cloud operations and delivers strong security and ROI
Regarding areas for improvement, I think Data Lens could be enhanced from Nutanix's side, but it has been a long time since I logged into that console, so I do not remember much. It is a SaaS-based offering on the Nutanix portal. It is not something you deploy on-premises; it is not on-prem access. You connect your cluster to the SaaS-based Nutanix and then access the Lens console. I need to check it since it has been almost two or three months since I logged in. Nutanix Enterprise AI actually needs to improve a lot if I compare it with any other product such as NVIDIA and other offerings in the market. Nutanix Enterprise AI still requires a lot of work. I did not check that in much detail technically, but whatever I thoroughly checked, it still lags behind in many features. When it comes to AI-related features, I think the ecosystem of Nutanix is not as big as NVIDIA because NVIDIA has its own inferencing system and model training platform such as NeMo, NeMoTron, and others. Nutanix does not have such things. It can be built using NVIDIA CUDA libraries, but what I saw when I was testing the product is that you can run NVIDIA NeMo and PyTorch and two other things, but as a software, Nutanix does not have an end-to-end platform. That is something Nutanix should focus on.

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 feature of the Pure Storage Flash Array is the blazing fast monitoring."
"Go with Pure (or a flasher rate which is similar) because of the ease of management and performance."
"If it's financially viable for you and you can afford it, it's worth it."
"It's just very easy for general block storage."
"We chose Pure Storage primarily because of its combination of performance and ease of use."
"Overall, Pure Storage FlashArray has never let us down in front of customers so far."
"Pure support is very proactive, they monitor our infrastructure in real-time, so they respond before we even open a ticket."
"We put a fair amount of stress on it because we run sequel workloads and we run web applications where the same web files are hit over and over, and we have had almost zero stability issues with that SAN, which has been really great for us."
"Spectrum Scale is one of the most important products in our environment now."
"GPFS monitoring is the best feature."
"It is a scalable solution."
"We tested a complete site loss with the initial loss of the complete data center and the system was always up."
"It has been pretty reliable throughout the years. As far as capacity is concerned, it can handle most heavy loads."
"I find IBM Spectrum Scale to be an excellent product known for its fast parallel file system."
"It is incredibly scalable; you can add more storage to it, add more file sets, and add it to more servers, making it a robust product that should be able to expand with us."
"I would rate my overall experience with IBM Spectrum Scale as nine out of ten."
"One of the best features of Nutanix Unified Storage (NUS) is the ability to deliver file, object, and block storage from a single unified storage platform, along with native integration into the Nutanix Prism for centralized and simplified management."
"Offers high performance, full control, and strong security for mission-critical workloads."
"Nutanix Unified Storage is a simple, user-friendly, and stable solution."
"The performance has been very good."
"The initial setup is pretty straightforward. With a few clicks, you can stand up your storage. It reduces the overall life cycle of deployment within the ecosystem."
"Redundancy and availability are valuable. We have several nodes, so it stays up, and there is redundancy. Then there is availability."
"The product is good, easy to upgrade, easy to use, and user-friendly."
"The solution's most valuable features are its support and speed."
 

Cons

"The initial setup of the product is complex."
"Regarding documentation, it would be helpful if we could have access to the root passwords for administrative tasks."
"There are a lot of things to improve."
"Scalability is not an easy option for Pure Storage, so you have to be very careful when you are getting that product for you."
"I find the pricing of Everpure FlashArray to be quite high compared to other storage solutions; however, the reliability and features are commendable."
"Technical support needs improvement. With respect to them being able to respond, they're more marketing people, less technical."
"It would be beneficial to have a separate pricing point for environments with lower performance requirements or less workload."
"The only time that we had problems with it was that there was a bug in the VVol implementation but, outside of that, it has been flawless."
"They should probably simply the Red Hat implementation portion. This portion was not as straightforward as I would like it to be."
"Making it a little easier to add bad file sets would help. There is a transition to how you add storage and how you add a file set, so making that a little smoother would probably be my recommendation."
"It would be helpful if there was a graphical user interface that could walk you through the deployment process. The instructions surrounding setup aren't the best. They need to be more step-by-step."
"Maybe it needs integration with HA."
"There can be improvements in fault tolerance and making erasure coding faster."
"Integration with other vendors is not available. This feature would be very helpful."
"This is probably the biggest challenge, getting everything upgraded, because it just takes time. We wish it was a faster solution to be able to do everything at once, but you have do each node individually. The more nodes, the longer it takes."
"We do have some issues where Spectrum Scale does not work as expected."
"There should be more information. If it gets used more by more people, they will have a bigger community to share ideas. It is still kind of newer. It is not as big as Dell and other companies."
"Nutanix could improve the ability to track user actions, such as identifying who deleted a folder."
"Its features can be further enhanced from the DR and high availability points of view to match other vendors, such as NetApp. It has snapshot, replication, high availability, and other data and storage-level replication, but there are some limitations."
"The escalation process with technical support could do with some improvement."
"The implementation is a little bit complex and should be made easier."
"There is a negative side to Nutanix Unified Storage (NUS)."
"The only thing I would say is missing for us it is FTP protocol compatibility."
"I haven't had any issues with the solution so far."
 

Pricing and Cost Advice

"The solution could be cheaper."
"In comparison to the competitors, Pure is very price-competitive for the future functionality that it provides."
"We lost a lot of customers because we couldn't compete on price with other vendors."
"I don't know the exact cost but it's around $1,000."
"It's expensive, but you get what you pay for."
"The price was slightly higher than others, but competitive, if you consider all the other features that you get from it."
"Pure Storage is all-flash, so this sometimes tends to make it a bit more expensive in the beginning."
"Pure came in at a better price point than EMC and performed better than Compellent."
"The licensing is based on the number of terabytes."
"The licensing model is complex and depends on factors such as the number of processing cores and the amount of storage."
"The solution is costly but reliable."
"I am not the one who makes the calls, but it seems to me that it was very competitive. Other solutions would have required dedicated hardware, so an additional CapEx has to be put in place. In that sense, it was definitely a more competitive option to go with Nutanix Files."
"The price can always be improved. As a customer, you always seek reasonable solutions within your budget, and they give us little to do a lot. My IT team always has to justify that we are choosing an optimal solution, so the price could be a little lower Maybe the prices could be a little bit lower."
"It's competitive and attractive for moving things to it and then prioritizing those newly freed up resources for something else."
"In my opinion, the product is fairly priced."
"My company is in Brazil, and making the payments in dollars is tough for our organization."
"Nutanix offers different pricing options, including Ultimate and Ultimate Pro."
"The cost of Nutanix Unified Storage can be prohibitive for some small and medium-sized businesses, making it challenging for them to adopt the product."
"Nutanix is very competitive."
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Top Industries

By visitors reading reviews
Manufacturing Company
13%
Financial Services Firm
10%
Comms Service Provider
10%
Outsourcing Company
8%
Financial Services Firm
16%
Construction Company
8%
Manufacturing Company
6%
Comms Service Provider
6%
Manufacturing Company
14%
Financial Services Firm
9%
Computer Software Company
9%
Outsourcing Company
8%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business73
Midsize Enterprise38
Large Enterprise160
By reviewers
Company SizeCount
Small Business6
Large Enterprise8
By reviewers
Company SizeCount
Small Business32
Midsize Enterprise31
Large Enterprise69
 

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...
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 ...
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.
What is your experience regarding pricing and costs for IBM Spectrum Scale?
IBM Spectrum Scale functions as software-based storage, allowing users to utilize any hardware supported or defined b...
What needs improvement with IBM Spectrum Scale?
The system relies heavily on ethernet networking, and when issues occur, we must consult with the network team to inv...
What is your primary use case for IBM Spectrum Scale?
My personal use of this product is for parallel writing or reading files.
What is your experience regarding pricing and costs for Nutanix Unified Storage?
The pricing for Nutanix Unified Storage (NUS) is subscription-based with capacity-based licensing and has moderate to...
What needs improvement with Nutanix Unified Storage?
One area for improvement I noticed while using Nutanix Unified Storage (NUS) is expanding advanced analytics and pred...
What advice do you have for others considering Nutanix Unified Storage?
My advice for others looking into using Nutanix Unified Storage (NUS) is to clearly understand your storage requireme...
 

Also Known As

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

Overview

 

Sample Customers

Nielsen, Lamar Advertising, LinkedIn, Betfair, UT-Dallas
Information Not Available
JetBlue, International Speedway Corporation, Volkswagen SAIC, Brighton and Hove City Council, Foresters Financial, Janus International Group, Cloud Comrade, Serco
Find out what your peers are saying about IBM Spectrum Scale vs. Nutanix Unified Storage (NUS) and other solutions. Updated: September 2026.
919,894 professionals have used our research since 2012.