IBM Spectrum Scale vs IBM Spectrum Virtualize comparison

IBM Spectrum Scale and IBM Spectrum Virtualize are both solutions in the Software Defined Storage (SDS) category. IBM Spectrum Scale is ranked #10 with an average rating of 8.5, while IBM Spectrum Virtualize is ranked #14 with an average rating of 8.7. IBM Spectrum Scale holds a 3.7% mindshare in SDS, compared to IBM Spectrum Virtualize’s 2.1% mindshare. Additionally, 100% of IBM Spectrum Scale users are willing to recommend the solution, compared to 91% of IBM Spectrum Virtualize users who would recommend it.

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Executive SummaryUpdated on Dec 5, 2024

IBM Spectrum Virtualize and IBM Spectrum Scale compete in the data management category. IBM Spectrum Scale seems to have the upper hand due to its wide-ranging features, making it valuable for data-intensive environments.

Features: IBM Spectrum Virtualize provides advanced storage virtualization with a unified view of storage resources and enhances data efficiency through compression and de-duplication. It simplifies storage management across heterogeneous systems. IBM Spectrum Scale offers scalable, high-performance data management with parallel file systems for fast access, a benefit for big data and analytics, and supports numerous data protocols.

Room for Improvement: IBM Spectrum Virtualize could improve in supporting newer storage technologies faster and enhance its performance analytics tools. It may also benefit from more cloud integration features. IBM Spectrum Scale's complexity in deployment can be reduced, and its user interface could be more intuitive. It might also expand support for emerging data protocols.

Ease of Deployment and Customer Service: IBM Spectrum Virtualize provides an easy deployment process and excellent customer service support, integrating seamlessly into existing infrastructures. IBM Spectrum Scale requires a more detailed deployment approach due to its architecture, but is backed by comprehensive documentation and a responsive customer support team.

Pricing and ROI: IBM Spectrum Virtualize generally has lower initial costs, providing immediate ROI with storage efficiency. IBM Spectrum Scale may have higher upfront costs but offers significant long-term ROI through performance and scalability in handling data-intensive tasks.

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

Buyer's Guide

IBM Spectrum Scale vs. IBM Spectrum Virtualize

December 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 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 Scale is 3.7%, down from 4.5% compared to the previous year. The mindshare of IBM Spectrum Virtualize is 2.1%, up from 1.5% 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	3.3%
IBM Spectrum Scale	3.7%
IBM Spectrum Virtualize	2.1%
Other	90.9%

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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Sachin Prakash

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.

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AhmedSorour

IT Specialist at Saudi Business Machines - SBM

Unified storage solution supports cross-vendor replication and diverse industries

One of the most valuable features of IBM Spectrum Virtualize is its virtualization capability. It allows for the creation of stretched clusters, which are crucial for running Linux-based workloads that need mirroring for boot disks. The solution also provides asynchronous and synchronous replication, supporting operations across different data centers. Its deployment options across public, private, and hybrid clouds add to its versatility.

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

"The product is scalable and easy to expand."

"I like its size. It is smaller than the other competitors. We can plug in many blades, and we can have data up to one terabyte."

"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."

"What I like best about Pure Storage FlashBlade is its object storage functionality, plus it has fast underlying hardware. Pure Storage FlashBlade is also very stable. I find its stability one of its valuable features."

"We have seen a reduction in the total cost of ownership by around 20%."

"FlashBlade offers low latency, high throughput, and seamless scalability."

"It has also helped to simplify storage for us in the way that it's easy to manage. Their automatic monitoring really helps when things break or are about to break. They see a problem coming and alert us even before our own system does."

More Pure Storage FlashBlade pros

"We use GPFS Scale for parallel file access, the file management, and it's an essential part of our operations."

"Its great servicing high availability. That is what it is used for."

"I rate this product ten out of ten."

"Allows us to share files across multiple environments."

"It has been pretty reliable throughout the years. As far as capacity is concerned, it can handle most heavy loads."

"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."

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

"The profile share is a valuable feature."

More IBM Spectrum Scale pros

"The scalability is very good. It can handle anywhere from very small to large enterprise class."

"IBM offers excellent customer service."

"Although the GUI from the XIV was used (in my view), IBM has polished and refined the GUI providing a pleasant and easy to navigate GUI experience."

"The most valuable feature is its reliability."

"The ease of management, the simplicity of the CLI, the speed of that interface, and the well-architected design of the product in general are valuable features."

"It provides transparency, because of its advanced copy features."

"The abstraction flair and the abstraction layer. We had a mixture of different storage arrays, and the wonderful thing about SVC is is that it normalizes all it into a single driver. A single view that all hosts see simultaneously."

"Migration from configurations where servers have storage provisioned from older SAN disk systems to newer storage systems is almost seamless using image mode migration techniques, with only a short outage of the servers."

More IBM Spectrum Virtualize pros

Cons

"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."

"Compared to, for example, Hitachi NAS, the solution is not mature at all. It's just in its infancy as far as technology goes."

"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."

"The feature that we're waiting on is better integration with the cell services."

"I would like to see better integration."

"They need better integration with public clouds along with a better hybrid solution."

"I would like to see more deduplication."

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

More Pure Storage FlashBlade cons

"I wish there were some graphical user interface to access the GPFS file system creation and monitoring."

"Integration with other vendors is not available."

"The solution's pricing could be better."

"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."

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

"Initially, stability was a concern as we encountered numerous issues and errors."

"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."

More IBM Spectrum Scale cons

"GUI should be developed in HTML5 as opposed to Java."

"I already discussed possible improvements with some of the guys from Hearnsley. One of our frustrations is when you go to expand volumes in a global mirror environment, you have to stop everything in order to expand. So that's one of the things."

"t is limited in terms of a single system to eight nodes or four, what they call IO groups."

"Tighter integration with cloud storage might be useful as a target for a variety of use cases."

"NBME support and support for a higher Fibre Channel lengths could be improved, but those are already on the roadmap."

"I would like to see more baseline replication and integration with the operating system between Vmware and IBMI."

"They are actually working on one bug we found, which was with flash restore. This was the user interface design for virtual environments."

"The integration would be an option that we would like, but I understand that's not how it's going to be implemented."

More IBM Spectrum Virtualize cons

Pricing and Cost Advice

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

"I understand that it is competitively priced compared to other brands."

"It is within reason for what you get. From what we have found comparing it to other vendors, it is in the same range as others. Given the choice, we would definitely redeploy it based on the cost."

"Licensing fees are paid yearly."

"We used a reseller for the purchase."

"The product is very expensive."

"Our licensing is renewed annually."

"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."

More Pure Storage FlashBlade pricing and cost advice

"The solution is costly but reliable."

"The licensing model is complex and depends on factors such as the number of processing cores and the amount of storage."

"The licensing is based on the number of terabytes."

"I think it is a good value for the price."

"We would like the CPU cycle to save more on the licensing costs for us."

"The entry point of pricing for this product is the most amazing price ever in the industry."

"Do a proof of concept, if you are not comfortable jumping in, but do it."

"This solution came as an additional cost for the TSM package we chose."

"It has a lot of advanced functions for a reasonable price."

"Generally the bundled licensing is more cost effective and gives flexibility to the solution. Linking into the Spectrum Suite can also be advantageous, but depends on the scale of the enterprise."

"We have struggled with Pure Storage, but people are understanding that much of Pure has been consumer grade SSDs. Therefore, when the customer is really understands what they are getting, they realize that IBM presents the same sort of value as existing vendors."

More IBM Spectrum Virtualize pricing and cost advice

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Top Industries

By visitors reading reviews

Financial Services Firm

12%

Computer Software Company

10%

Manufacturing Company

10%

Government

Financial Services Firm

18%

Manufacturing Company

10%

Computer Software Company

Government

Performing Arts

15%

Manufacturing Company

11%

Computer Software Company

10%

Financial Services Firm

Company Size

By reviewers

Large Enterprise

Midsize Enterprise

Small Business

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

By reviewers
Company Size	Count
Small Business	6
Large Enterprise	8

By reviewers
Company Size	Count
Small Business	11
Midsize Enterprise	4
Large Enterprise	31

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?

Regarding pricing, it is okay; we needed exactly this in size, and the price was a lot lower than competitors, making...

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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...

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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.

See all answers

What is your experience regarding pricing and costs for IBM Spectrum Virtualize?

IBM Spectrum Virtualize is not an expensive product. It offers flexibility with different flavors, whether appliance-...

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What needs improvement with IBM Spectrum Virtualize?

IBM could improve IBM Spectrum Virtualize by bundling Storage Scale and Storage Virtualize into a single appliance. T...

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What is your primary use case for IBM Spectrum Virtualize?

I primarily use IBM Spectrum Virtualize ( /products/ibm-spectrum-virtualize-reviews ) when I have different hardware ...

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Comparisons

Dell PowerScale (Isilon) vs Pure Storage FlashBlade

Compared 17% of the time

Pure Storage FlashArray vs Pure Storage FlashBlade

Compared 10% of the time

MinIO vs Pure Storage FlashBlade

Compared 9% of the time

Red Hat Ceph Storage vs Pure Storage FlashBlade

Compared 7% of the time

VAST Data vs Pure Storage FlashBlade

Compared 6% of the time

More Pure Storage FlashBlade Competitors

Red Hat Ceph Storage vs IBM Spectrum Scale

Compared 15% of the time

Portworx Enterprise vs IBM Spectrum Scale

Compared 11% of the time

NetApp Cloud Volumes ONTAP vs IBM Spectrum Scale

Compared 10% of the time

DDN IME vs IBM Spectrum Scale

Compared 8% of the time

VMware vSAN vs IBM Spectrum Scale

Compared 7% of the time

More IBM Spectrum Scale Competitors

Red Hat Ceph Storage vs IBM Spectrum Virtualize

Compared 11% of the time

VMware vSAN vs IBM Spectrum Virtualize

Compared 10% of the time

Dell VPLEX vs IBM Spectrum Virtualize

Compared 10% of the time

DataCore SANsymphony vs IBM Spectrum Virtualize

Compared 10% of the time

IBM Spectrum Accelerate vs IBM Spectrum Virtualize

Compared 10% of the time

More IBM Spectrum Virtualize Competitors

Product Reports

Buyer's Guide

Pure Storage FlashBlade

December 2025

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Buyer's Guide

IBM Spectrum Scale

December 2025

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Buyer's Guide

IBM Spectrum Virtualize

December 2025

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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 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

IBM Spectrum Virtualize is a dependable solution that improves data value, security, and simplicity for new and existing storage infrastructure. Proven over 12 years in thousands of deployments, its innovative virtualization capabilities help organizations achieve better data economics by supporting new workloads that are critical to their success. IBM Spectrum Virtualize software helps make new and existing storage more effective and standardizes functions traditionally deployed separately in disk systems for greater flexibility and potentially lower costs.

IBM

Sample Customers

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

Information Not Available

Pelephone, Sprint IT Enterprise Services

Buyer's Guide

IBM Spectrum Scale vs. IBM Spectrum Virtualize

December 2025

Free Report: IBM Spectrum Scale vs. IBM Spectrum Virtualize

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