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 3.9% mindshare in SDS, compared to IBM Spectrum Virtualize’s 1.6% 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: September 2025).

Buyer's Guide

IBM Spectrum Scale vs. IBM Spectrum Virtualize

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 Scale is 3.9%, down from 4.6% compared to the previous year. The mindshare of IBM Spectrum Virtualize is 1.6%, up from 1.6% 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 Virtualize	1.6%
Other	90.7%

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 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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MD.Faisal Alam

Manager, Technical Services, IBM Storage & Backup Solutions. at Thakral

Built-in compression enhances data management efficiency

I have noticed that the technical support for software issues, such as with Spectrum Protect, needs improvement. The case logging process is efficient, but resolving software problems takes too much time. This delay can hinder customers and strain vendor relationships. For hardware issues, IBM handles them efficiently, but software-related support requires enhancement. Overall improvement in support for software cases is necessary.

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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

"We have integrated it with VMware. The integration process is pretty good. Especially with VMware, it helps with the capacity of it."

"Approximately 40% to 50% of my time is saved using Pure Storage FlashBlade compared to different products."

"The initial setup is pretty quick."

"The tool's most valuable feature is its fast performance, especially in handling snapshots. It helps during power outages when we need to quickly move data between different data centers. It ensures efficient replication and helps maintain our data centers' uptime."

"It helps simplify our storage, because the user interface is very simple and the installation is easy."

"It is very easy to use, and it is very fast."

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

"The onboarding and integrated monitoring tools are pretty good."

More Pure Storage FlashBlade pros

"It is incredibly scalable and stable."

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

"GPFS monitoring is the best feature."

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

"We can have multiple systems within the same file system."

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

More IBM Spectrum Scale pros

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

"IBM provides exceptional technical support, which I rate as the best along with Cisco."

"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."

"It is a single pane of glass management interface, so once the storage is allocated to SVC, they only have one place to go to manage it for everything."

"In my opinion, the quick restore, the low latency, and the ease of use are some of the most valuable features."

"There are many benefits to this solution. Storage virtualization and the ability to migrate massive amounts of data to other systems without impacting your client are the most valuable. It is non-disruptive for my users. We migrated 350 terabytes of data in one night to a new machine without a small system going down and a single user complaining about the performance. You have to fine-tune a lot of storage machines constantly for performance and for making sure that they are optimal, but IBM Spectrum Virtualize does this by itself. It does the adjustment on its own, and it does it right. That's what makes it different. I had a huge VSP from Hitachi, which is also a type of virtualization-based engine but with a decent size. It was a continuous performance-tuning exercise. I never had that issue with IBM Spectrum Virtualize."

"The most valuable features are the simplicity of use, the flexibility, and the options included. I mean, it's just a big time saver."

"The ability to add the virtual machine on the Spectrum environment to sort out the data movers(DMs) and their schedules is a valuable feature. You are able to have, for example, four data movers to balance them so you do not have too much work on one data mover."

More IBM Spectrum Virtualize pros

Cons

"An area for improvement in Pure Storage FlashBlade is its price. It could be reduced. The technical support for Pure Storage FlashBlade also needs improvement. It used to be good, with more experienced engineers. Nowadays, it isn't, and it takes longer for support to solve problems."

"I would also like to see better support for CIFS workloads."

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

"I would like to see more monitoring capability included in the next release of this solution."

"It's on the expensive side, as expected for a niche product."

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

"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."

"I would like to see better integration."

More Pure Storage FlashBlade cons

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

"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."

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

"Integration with other vendors is not available."

"The pricing and licensing model for this solution are complex and it is sometimes difficult to explain it to customers."

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

"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

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

"For improvement considerations, I would probably say multiple sites."

"The disk reliability is not that good."

"Anything which improves performance and the ability of our systems would be a nice."

"There are big arrays now, and if a customer wants add more disks to it, you have to have another array. Adding disks to existing arrays is one of the most demanded things from our customers."

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

"In general, the migration is complicated. Though, it is case-by-case."

"The Storwize port is not so stable."

More IBM Spectrum Virtualize cons

Pricing and Cost Advice

"Our customers have seen a reduction in TCO."

"Our licensing is renewed annually."

"We used a reseller for the purchase."

"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 product is very expensive."

"I rate the tool's pricing a seven to eight out of ten."

"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."

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

More Pure Storage FlashBlade pricing and cost advice

"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."

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

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

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

"I am very happy with the pricing. There is no comparison when it comes to pricing. I have looked at all solutions from EMC, Veritas, Hitachi, Dell, etc. None of them compares to IBM when it comes to pricing. I get great pricing from them."

"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."

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

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

"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."

More IBM Spectrum Virtualize pricing and cost advice

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Top Industries

By visitors reading reviews

Computer Software Company

12%

Financial Services Firm

11%

Manufacturing Company

10%

Government

Financial Services Firm

18%

Manufacturing Company

10%

Computer Software Company

10%

Government

Performing Arts

16%

Computer Software Company

15%

Financial Services Firm

Manufacturing Company

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...

See all answers

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...

See all answers

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...

See all answers

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...

See all answers

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 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

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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

Red Hat Gluster Storage vs IBM Spectrum Scale

Compared 8% of the time

More IBM Spectrum Scale Competitors

Red Hat Ceph Storage vs IBM Spectrum Virtualize

Compared 15% of the time

IBM Spectrum Accelerate vs IBM Spectrum Virtualize

Compared 14% of the time

VMware vSAN vs IBM Spectrum Virtualize

Compared 13% of the time

VxRail vs IBM Spectrum Virtualize

Compared 13% of the time

Dell VPLEX vs IBM Spectrum Virtualize

Compared 12% of the time

More IBM Spectrum Virtualize Competitors

Product Reports

Buyer's Guide

Pure Storage FlashBlade

October 2025

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Buyer's Guide

IBM Spectrum Scale

October 2025

Download IBM Spectrum Scale product report

Buyer's Guide

IBM Spectrum Virtualize

October 2025

Download IBM Spectrum Virtualize product report

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

September 2025

Free Report: IBM Spectrum Scale vs. IBM Spectrum Virtualize

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