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IBM Spectrum Scale vs Red Hat Gluster Storage 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

Pure Storage FlashBlade
Sponsored
Ranking in Software Defined Storage (SDS)
9th
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 Scale
Ranking in Software Defined Storage (SDS)
10th
Average Rating
8.4
Reviews Sentiment
7.1
Number of Reviews
14
Ranking in other categories
Cloud Software Defined Storage (1st)
Red Hat Gluster Storage
Ranking in Software Defined Storage (SDS)
11th
Average Rating
8.2
Reviews Sentiment
6.8
Number of Reviews
4
Ranking in other categories
No ranking in other categories
 

Mindshare comparison

As of February 2026, in the Software Defined Storage (SDS) category, the mindshare of Pure Storage FlashBlade is 3.4%, down from 4.4% compared to the previous year. The mindshare of IBM Spectrum Scale is 3.5%, down from 4.5% compared to the previous year. The mindshare of Red Hat Gluster Storage is 3.2%, up from 2.8% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Software Defined Storage (SDS) Market Share Distribution
ProductMarket Share (%)
Pure Storage FlashBlade3.4%
IBM Spectrum Scale3.5%
Red Hat Gluster Storage3.2%
Other89.9%
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.
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.
GiovanniRamirez - PeerSpot reviewer
Senior IT Consultant at Xerif
Flexible and scalable file system for growing storage needs
Gluster FS is used for various purposes, including virtualization, collaboration, and data center environments. It is also applied in personal environments. Some specific use cases mentioned include scaling a three-terabyte file system into a 12-terabyte file system with minimal downtime Gluster…

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 features include the ease of implementation, ease of use and the speed that you can do backup and recovery on."
"We have seen a reduction in the total cost of ownership by around 20%."
"Pure Storage FlashBlade's scalability is one of the most valuable features, and importantly, it always works, allowing for seamless upgrades."
"The performance of FlashBlade is excellent. It does not necessarily leverage the SOS API that some of the newer products leverage, but I found its speed pretty much on par and comparable. It is fast, and it does what it is supposed to do."
"The solution provides many controllers."
"It is very easy to use, and it is very fast."
"It has absolutely simplified our storage because the dashboards on the consoles show a clear understanding of where you are, and it is also very easy to provision. This been a big help for our teams."
"The most valuable feature of this solution is performance."
"It has been pretty reliable throughout the years. As far as capacity is concerned, it can handle most heavy loads."
"The most valuable feature is the ability to share files across different platforms."
"It is a scalable solution."
"Allows us to share files across multiple environments."
"Technical support has been very helpful. They provide us with pretty good solutions that we can implement moving forward."
"It makes our file system sharing a lot easier, even across different continents. We have had file systems shared across different continents with no performance degradation."
"I find IBM Spectrum Scale to be an excellent product known for its fast parallel file system."
"I would rate my overall experience with IBM Spectrum Scale as nine out of ten."
"The technical support team is excellent."
"It's very easy to upgrade storage."
"The price tag is good compared to the amount of data and high availability provided."
"Notable features of Gluster FS include flexibility, scalability, stability, and ease of use."
 

Cons

"I would like to see more monitoring capability included in the next release of this solution."
"In terms of scalability, it doesn't expand out quite as robustly as some of the others, but it covers 90% of the market in what it does."
"The solution is expensive."
"I would like to see more VM-Aware features in the next release of this solution."
"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."
"I have not seen ROI."
"I would also like to see better support for CIFS workloads."
"There is some room for new features related to authentication and integration with Kubernetes, and other solution using S3 Bucket."
"The initial setup is complex, especially if trying to avoid erasure coding, as it requires more discs. Avoiding erasure coding can significantly increase costs."
"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."
"They should probably simply the Red Hat implementation portion. This portion was not as straightforward as I would like it to be."
"The solution's pricing could be better."
"Initially, stability was a concern as we encountered numerous issues and errors."
"There can be improvements in fault tolerance and making erasure coding faster."
"The biggest problem is that it is not able to provide block storage."
"Integration with other vendors is not available."
"There is a feature in Red Hat’s commercial version that could be beneficial if integrated into the open-source version."
"The system should be more intuitive and easier to manage."
"The performance of the solution must be improved."
"The user interface could be simplified."
 

Pricing and Cost Advice

"Our customers have seen a reduction in TCO."
"I have seen ROI. It has allowed me to increase the density of my VMs without having to purchase anything additional."
"The price is a little high."
"It's a costly solution, but Pure Storage FlashBlade doesn't require additional licenses. All of the software is combined into one bundle."
"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 price could be cheaper."
"In my opinion, we have paid the right price for the product. I don't think that it is too much or too little."
"I understand that it is competitively priced compared to other brands."
"The solution is costly but reliable."
"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."
"If you need cheap storage, but still need high availability, it's a good product to look at."
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Top Industries

By visitors reading reviews
Financial Services Firm
12%
Manufacturing Company
10%
Computer Software Company
9%
Government
7%
Financial Services Firm
19%
Manufacturing Company
9%
Educational Organization
7%
Healthcare Company
7%
Manufacturing Company
11%
Financial Services Firm
9%
Government
8%
Comms Service Provider
8%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business11
Midsize Enterprise11
Large Enterprise21
By reviewers
Company SizeCount
Small Business6
Large Enterprise8
No data available
 

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 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 needs improvement with Red Hat Gluster Storage?
There is a feature in Red Hat’s commercial version that could be beneficial if integrated into the open-source versio...
What is your primary use case for Red Hat Gluster Storage?
Gluster FS is used for various purposes, including virtualization, collaboration, and data center environments. It is...
What advice do you have for others considering Red Hat Gluster Storage?
I would highly recommend Gluster FS to others considering it. The system is robust, flexible, and easy to use. I'd ra...
 

Also Known As

No data available
No data available
Red Hat Gluster, Red Hat Storage Server
 

Overview

 

Sample Customers

ServiceNow, Mercedes-AMG Petronas Motorsport, Dominos, Man AHL
Information Not Available
NTT Plala, McMaster University, University of Basque Country, Goodtech ASA, Cox Automotive, Raidió Teilifís Éireann (RTÉ), SaskTel, Glashart Media, Casio
Find out what your peers are saying about IBM Spectrum Scale vs. Red Hat Gluster Storage and other solutions. Updated: December 2025.
881,665 professionals have used our research since 2012.