IBM Spectrum Accelerate vs IBM Spectrum Scale comparison

IBM Spectrum Accelerate and IBM Spectrum Scale are both solutions in the Software Defined Storage (SDS) category. IBM Spectrum Accelerate is ranked #24, while IBM Spectrum Scale is ranked #10 with an average rating of 8.5. IBM Spectrum Accelerate holds a 1.9% mindshare in SDS, compared to IBM Spectrum Scale’s 3.9% mindshare. Additionally, 100% of IBM Spectrum Accelerate users are willing to recommend the solution, compared to 100% of IBM Spectrum Scale users who would recommend it.

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Executive SummaryUpdated on Dec 5, 2024

IBM Spectrum Accelerate and IBM Spectrum Scale compete in the storage solutions category. IBM Spectrum Scale often has the upper hand due to its extensive features and scalability that outperform the affordability of IBM Spectrum Accelerate.

Features: IBM Spectrum Accelerate offers consistent high performance, flexible scaling in all-flash, and hybrid-cloud environments. IBM Spectrum Scale provides enterprise-grade data management, seamless synchronization, and broad scalability, crucial for complex storage scenarios.

Ease of Deployment and Customer Service: IBM Spectrum Accelerate has user-friendly setup procedures for streamlined deployment. Spectrum Scale, requiring more technical expertise, presents a complex deployment model with numerous configuration options. It provides comprehensive customer service to support its intricate deployment.

Pricing and ROI: IBM Spectrum Accelerate is seen as cost-effective with lower setup costs and rapid benefits, suitable for budget-constrained environments. IBM Spectrum Scale, while demanding a higher initial investment, offers significant ROI through advanced capabilities for handling large-scale data management and processing.

To learn more, read our detailed IBM Spectrum Accelerate vs. IBM Spectrum Scale Report (Updated: September 2025).

Buyer's Guide

IBM Spectrum Accelerate vs. IBM Spectrum Scale

September 2025

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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

Mindshare comparison

As of November 2025, in the Software Defined Storage (SDS) category, the mindshare of Pure Storage FlashBlade is 3.8%, down from 4.6% compared to the previous year. The mindshare of IBM Spectrum Accelerate is 1.9%, up from 1.3% compared to the previous year. The mindshare of IBM Spectrum Scale is 3.9%, 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
Product	Market Share (%)
Pure Storage FlashBlade	3.8%
IBM Spectrum Scale	3.9%
IBM Spectrum Accelerate	1.9%
Other	90.4%

Software Defined Storage (SDS)

Featured Reviews

MikaelHellström

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.

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reviewer1154616

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.

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Sachin Prakash

Assistant Consultant at Tata Consultancy

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.

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Quotes from Members

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

Pros

"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."

"I would rate Pure Storage FlashBlade a ten out of ten."

"The most valuable features of this solution are the rewrite speed and the nonstop services."

"The most valuable feature of this solution is performance."

"Pure Storage FlashBlade is user-friendly. It's replication feature is great because it has active replication and active DR. That's the beauty of the product. It's a perfect solution for block storage."

"It performs well and it is also very fast."

"We can capacity plan at a greater level than we used to."

"Pure Storage FlashBlade's scalability is one of the most valuable features, and importantly, it always works, allowing for seamless upgrades."

More Pure Storage FlashBlade pros

"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 high performance of the solution is its most valuable aspect. If you compare it to other storage solutions, it's much better."

"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."

"It is incredibly scalable and stable."

"I find IBM Spectrum Scale to be an excellent product known for its fast parallel file system."

"We are using it for monitoring all of our storage."

"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 would rate my overall experience with IBM Spectrum Scale as nine out of ten."

"The profile share is a valuable feature."

More IBM Spectrum Scale pros

Cons

"We haven't been able to use much of the cloud area of Pure Storage. We have a storage server and it would be better if it could integrate with other cloud features 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 features provided for SMB customers are limited."

"There is some room for new features related to authentication and integration with Kubernetes, and other solution using S3 Bucket."

"It would be beneficial if the layer could support the S3 protocol and be container ready in the next release."

"Recently, while upgrading the version code, one of the controllers failed. Replacing the controller took between 14 to 20 days."

"The speed could be improved."

"Its configuration should be easier."

More Pure Storage FlashBlade cons

"he interface is not user-friendly so the ease of use could be improved."

"The reporting mechanisms need improvement."

"There can be improvements in fault tolerance and making erasure coding faster."

"They should probably simply the Red Hat implementation portion. This portion was not as straightforward as I would like it to be."

"We do have some issues where Spectrum Scale does not work as expected. We have seen our Spectrum Scale servers go down unexpectedly, but because we have a cluster, it does not take out the entire organization."

"I believe there is no graphic user interface, so they should include it."

"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."

"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."

"The main issue that we have now is with the encryption. They want to use more metrics in encryption, which is not working very well."

More IBM Spectrum Scale cons

Pricing and Cost Advice

"I feel that the price could always be lowered."

"It's a costly solution, but Pure Storage FlashBlade doesn't require additional licenses. All of the software is combined into one bundle."

"The pricing for FlashBlade is between cheap and moderate."

"Support is a separate line item. Support is a different cost, but whatever your support is now, that's what you're going to pay forever. If your support's $100 today, six years from now it's $100. It doesn't fluctuate unless you upgrade it, or change it, etc."

"Our licensing is renewed annually."

"The pricing is relatively expensive due to the FlashBlade technology. However, for companies needing quick and reliable data access, the cost is justified."

"In my opinion, we have paid the right price for the product. I don't think that it is too much or too little."

"Our customers have seen a reduction in TCO."

More Pure Storage FlashBlade pricing and cost advice

"If you are cost-sensitive then this solution is not for you."

"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."

"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."

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Top Industries

By visitors reading reviews

Computer Software Company

12%

Financial Services Firm

11%

Manufacturing Company

10%

Government

No data available

Financial Services Firm

18%

Manufacturing Company

10%

Computer Software Company

10%

Government

Company Size

By reviewers

Large Enterprise

Midsize Enterprise

Small Business

By reviewers
Company Size	Count
Small Business	11
Midsize Enterprise	11
Large Enterprise	21

No data available

By reviewers
Company Size	Count
Small Business	6
Large Enterprise	8

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...

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What is your experience regarding pricing and costs for Pure Storage FlashBlade?

The pricing of Pure Storage FlashBlade is expensive compared to other products I used from other companies in the pas...

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What needs improvement with Pure Storage FlashBlade?

I believe there is not much improvement needed because they have everything we need, but the interface is a little bi...

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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...

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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...

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What is your primary use case for IBM Spectrum Scale?

My personal use of this product is for parallel writing or reading files.

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Comparisons

Dell PowerScale (Isilon) vs Pure Storage FlashBlade

Compared 18% of the time

Pure Storage FlashArray vs Pure Storage FlashBlade

Compared 11% of the time

MinIO vs Pure Storage FlashBlade

Compared 10% of the time

Red Hat Ceph Storage vs Pure Storage FlashBlade

Compared 8% of the time

VAST Data vs Pure Storage FlashBlade

Compared 7% of the time

More Pure Storage FlashBlade Competitors

StorMagic SvSAN vs IBM Spectrum Accelerate

Compared 27% of the time

Red Hat Ceph Storage vs IBM Spectrum Accelerate

Compared 19% of the time

Nutanix Cloud Infrastructure (NCI) vs IBM Spectrum Accelerate

Compared 14% of the time

IBM Spectrum Virtualize vs IBM Spectrum Accelerate

Compared 14% of the time

Veritas Access Appliance vs IBM Spectrum Accelerate

Compared 11% of the time

More IBM Spectrum Accelerate Competitors

Red Hat Ceph Storage vs IBM Spectrum Scale

Compared 18% of the time

Portworx Enterprise vs IBM Spectrum Scale

Compared 12% of the time

DDN IME vs IBM Spectrum Scale

Compared 10% of the time

VMware vSAN vs IBM Spectrum Scale

Compared 8% of the time

Nutanix Cloud Infrastructure (NCI) vs IBM Spectrum Scale

Compared 6% of the time

More IBM Spectrum Scale Competitors

Product Reports

Buyer's Guide

Pure Storage FlashBlade

October 2025

Download Pure Storage FlashBlade product report

Buyer's Guide

Software Defined Storage (SDS)

October 2025

Download IBM Spectrum Accelerate product report

Buyer's Guide

IBM Spectrum Scale

October 2025

Download IBM Spectrum Scale product report

Also Known As

No data available

IBM XIV

No data available

Overview

FlashBlade is the industry’s most advanced scale-out storage for unstructured data, powered by a modern, massively parallel architecture to consolidate complex data silos (like backup appliances and data lakes) and accelerate tomorrow’s discoveries and insights.

Pure Storage

IBM Spectrum Accelerate is a software-defined block storage solution designed for rapid deployment across heterogeneous infrastructure for hybrid cloud and delivering consistent service levels to a dynamic workload mix. It is based on proven grid-architecture, enterprise-scale IBM XIV technology. IBM Spectrum Accelerate can be deployed, including as hyper-converged infrastructure, on any x86 server, on pre-installed third-party appliances or on public cloud infrastructure, and is available as a service on IBM Cloud infrastructure.

IBM

IBM Spectrum Scale is a cluster file system that provides concurrent access to a single file system or set of file systems from multiple nodes. The nodes can be SAN attached, network attached, a mixture of SAN attached and network attached, or in a shared nothing cluster configuration. This enables access to this common set of data to support a scale-out solution or to provide a high availability platform. IBM Spectrum Scale has many features beyond common data access including data replication, policy based storage management, and multi-site operations. You can create a cluster of AIX nodes, Linux nodes, Windows server nodes, or a mix of all three. IBM Spectrum Scale can run on virtualized instances providing common data access in environments, leverage logical partitioning, or other hypervisors. Multiple IBM Spectrum Scale clusters can share data within a location or across wide area network (WAN) connections.

IBM

Sample Customers

ServiceNow, Mercedes-AMG Petronas Motorsport, Dominos, Man AHL

Silverpop

Information Not Available

Buyer's Guide

IBM Spectrum Accelerate vs. IBM Spectrum Scale

September 2025

Free Report: IBM Spectrum Accelerate vs. IBM Spectrum Scale

Find out what your peers are saying about IBM Spectrum Accelerate vs. IBM Spectrum Scale and other solutions. Updated: September 2025.

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