Try our new research platform with insights from 80,000+ expert users

IBM Spectrum Accelerate vs Nutanix Unified Storage (NUS) comparison

Sponsored
 

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

Pure Storage FlashBlade
Sponsored
Ranking in Software Defined Storage (SDS)
8th
Average Rating
8.8
Reviews Sentiment
7.5
Number of Reviews
39
Ranking in other categories
All-Flash Storage (12th), File and Object Storage (8th)
IBM Spectrum Accelerate
Ranking in Software Defined Storage (SDS)
23rd
Average Rating
8.0
Reviews Sentiment
6.9
Number of Reviews
2
Ranking in other categories
Cloud Software Defined Storage (4th)
Nutanix Unified Storage (NUS)
Ranking in Software Defined Storage (SDS)
2nd
Average Rating
8.8
Reviews Sentiment
7.2
Number of Reviews
114
Ranking in other categories
All-Flash Storage (6th), Public Cloud Storage Services (5th), File and Object Storage (3rd), NVMe All-Flash Storage Arrays (4th)
 

Mindshare comparison

As of January 2026, in the Software Defined Storage (SDS) category, the mindshare of Pure Storage FlashBlade is 3.3%, down from 4.6% compared to the previous year. The mindshare of IBM Spectrum Accelerate is 2.2%, up from 1.3% compared to the previous year. The mindshare of Nutanix Unified Storage (NUS) is 4.1%, down from 4.6% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Software Defined Storage (SDS) Market Share Distribution
ProductMarket Share (%)
Nutanix Unified Storage (NUS)4.1%
Pure Storage FlashBlade3.3%
IBM Spectrum Accelerate2.2%
Other90.4%
Software Defined Storage (SDS)
 

Featured Reviews

MikaelHellström - PeerSpot reviewer
IT Manager at Regin Dalarna
Has handled backup storage needs reliably and supports seamless upgrades
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.
reviewer1154616 - PeerSpot reviewer
IS Auditor at a healthcare company with 10,001+ employees
A robust solution with good performance and support
This is a solution that scales well, although I think that we have stabilized in terms of use. With respect to scalability, we have an open question as to whether we will be able to grow into a cloud-based deployment. We don't know in what ways this solution will assist us with the migration, or whether we can still use it for DR. We don't know about the type of backup, be it full, incremental, or otherwise. We are also looking for a cost-savings if we migrate. These are things that we will find out over time. We have about two petabytes of data.
Amarnath Charugundla - PeerSpot reviewer
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.

Quotes from Members

We asked business professionals to review the solutions they use. Here are some excerpts of what they said:
 

Pros

"The onboarding and integrated monitoring tools are pretty good."
"I would rate this solution an eight plus. It has has good flexibility and stability, it's easy to manage and the response time is good."
"We can capacity plan at a greater level than we used to."
"It uses the same platform for connectivity so integration is seamless."
"The snapshots, replication, and the ability to have immutable blades are the most valuable features. You're putting data snapshots out in those blades, and they cannot be touched. Its performance is great."
"Using this solution has made our backups more reliable."
"The most valuable feature of this solution is performance."
"The product is scalable and easy to expand."
"The ease of use is the solution's most valuable aspect. It's very user-friendly."
"The most valuable feature is the robustness, which is typical of IBM because their software generally just works."
"The most valuable features of the solution are replication and backup and our company needs a tool to help us with disaster recovery and the security of our data."
"The performance has been very good."
"The most valuable feature is the easy interface."
"The most valuable feature of Nutanix Unified Storage is redundancy."
"I rate Nutanix Unified Storage (NUS) nine point five to ten, as it's easy to manage, scalable, has great performance, and includes advanced features."
"It is very scalable."
"The solution is simple and robust."
"We migrated over to Nutanix and saw an immediate improvement in the performance."
 

Cons

"File storage needs a lot of improvement. Mainframe connectivity also needs improvement because it requires additional components to be integrated with Pure Storage FlashBlade. If you want to keep your backup data, then this becomes an even more expensive solution because Pure Storage FlashBlade will not be able to meet your backup needs."
"I would like to see more deduplication."
"The feature that we're waiting on is better integration with the cell services."
"I have not seen ROI."
"The only thing I feel FlashBlade is missing is the SOS API. If it had SOS API, that would put it well over the top."
"Commvault has mainly driven the Analytics, providing data and reports. However, the product has room for improvement, especially regarding storage analytics. Upgrading firmware has caused issues, requiring feature disabling to revert to traditional backups. The firmware upgrades sometimes affect Commvault backups."
"It's on the expensive side, as expected for a niche product."
"The technical support needs to improve. When we open a case, it is auto assigned to a support tech person. Nine out of ten times, we get an email right back saying that person is off until tomorrow. I cannot handle that. They just did this over the weekend to us, too. I had to call our rep and have them do something about it."
"The reporting mechanisms need improvement."
"he interface is not user-friendly so the ease of use could be improved."
"Pain points are just in the management and understanding of how the functions work. As far as updating and day-to-day operations, if my staff is properly trained and we have those proper training sessions, we don't have that many issues. There can be more educational resources from their side."
"The integration feature with Nutanix Unified Storage (NUS) could be improved, maybe into a more stabilized version."
"The solution should keep adding new features to be competitive in the market."
"The graphical user interface could provide more detail. It would be nice if we could click on the service and get some expanded definitions of them. When hiring new people, it's difficult to teach them how everything works, but if they can access everything, they can teach themselves."
"We have had to deal with some infrastructure and general cluster issues but these issues don't impact storage."
"We have issues with software updates occasionally."
"The current hardware is not as dense as it could be. In our deployment, we have 2 PB per site, and we have to have 24 nodes. That's a lot of cabling and network ports that we use up. More dense nodes would be better."
"Nutanix Unified Storage (NUS) can be improved in the area of big data workloads, as we still need to improve performance there."
 

Pricing and Cost Advice

"Pure Storage FlashBlade is a hardware appliance, and it's very expensive if you compare its price with other solutions. You can get the same features and benefits from its competitor, VAST Data, but for half the price of Pure Storage FlashBlade."
"The product is very expensive."
"Our customers have seen a reduction in TCO."
"Licensing fees are paid yearly."
"I rate the tool's pricing a seven to eight out of ten."
"In my opinion, we have paid the right price for the product. I don't think that it is too much or too little."
"The pricing is relatively expensive due to the FlashBlade technology. However, for companies needing quick and reliable data access, the cost is justified."
"It's a costly solution, but Pure Storage FlashBlade doesn't require additional licenses. All of the software is combined into one bundle."
"For a database, on a yearly basis, we pay approximately $3,500 for licensing fees. The solution is sold as a subscription on a yearly basis so there are no other ancillary costs."
"If you are cost-sensitive then this solution is not for you."
"Nutanix Unified Storage pricing is reasonable."
"If we compare the cost of Nutanix Objects Storage to other solutions such as VMware licenses, our current choice is Nutanix Objects Storage. This solution is more cost-effective. However, adding VMware to Nutanix would not be a cost-efficient decision, which is why we do not use it anymore."
"I find Nutanix Files Storage competitively priced, even its feature set. Its price is seven out of ten."
"It is not too high for what we are using."
"The pricing of Nutanix is generally higher compared to other vendors, which is a common observation, but it provides value through its support and features offered to customers."
"The licensing model the tool has is cheaper than an HCI storage solution."
"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 product has an annual licensing fee."
report
Use our free recommendation engine to learn which Software Defined Storage (SDS) solutions are best for your needs.
881,082 professionals have used our research since 2012.
 

Top Industries

By visitors reading reviews
Financial Services Firm
12%
Manufacturing Company
10%
Computer Software Company
10%
Government
7%
No data available
Computer Software Company
21%
Manufacturing Company
12%
Educational Organization
6%
Financial Services Firm
5%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business11
Midsize Enterprise11
Large Enterprise21
No data available
By reviewers
Company SizeCount
Small Business26
Midsize Enterprise30
Large Enterprise64
 

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...
Ask a question
Earn 20 points
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...
 

Also Known As

No data available
IBM XIV
Nutanix Files Storage, Nutanix Volumes Block Storage, Nutanix Objects Storage
 

Overview

 

Sample Customers

ServiceNow, Mercedes-AMG Petronas Motorsport, Dominos, Man AHL
Silverpop
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 Accelerate vs. Nutanix Unified Storage (NUS) and other solutions. Updated: December 2025.
881,082 professionals have used our research since 2012.