IBM Spectrum Scale vs VMware Software Defined Storage comparison

IBM Spectrum Scale vs. VMware Software Defined Storage

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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 July 2025, in the Software Defined Storage (SDS) category, the mindshare of Pure Storage FlashBlade is 4.2%, down from 4.5% compared to the previous year. The mindshare of IBM Spectrum Scale is 4.7%, down from 5.2% compared to the previous year. The mindshare of VMware Software Defined Storage is 1.0%, up from 1.0% compared to the previous year. It is calculated based on PeerSpot user engagement data.

Software Defined Storage (SDS)

Featured Reviews

Eric Black

Solutions Architect at Recovery Point Systems

The ability to leverage multi-tenancy along with immutability is a huge benefit for us

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. Veeam Backup specifically has started to streamline their API, and they are doing that with SOS API. They have optimized it. Any of the S3 devices out there that support this SOS API can have far more API calls at once. On our side, that translates to better restoration. With SOS API, it can leverage far more restorations at a single given time or read from the device in simple terms. That results in maximizing the output and throughput from the device itself.

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Bernd Stroehle.

Enterprise Architect at kosakya

Deliver improved performance in data processing and foster extensive AI initiatives

I find IBM Spectrum Scale to be an excellent product known for its fast parallel file system. It achieved the best results when integrated with IBM hardware. Even though it is complex, it provided significant performance advantages in large-scale data management. Its fault tolerance mechanisms and integration capabilities make it popular for extensive AI initiatives and data processing tasks for organizations like Daimler Benz and Bosch.

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Achilles Lobo

Infrastructure Architect at Grupo Protege

Simple to configure and provides good performance

The solution is simple to configure and provides good performance and less footprint. Dell deployed the solution, and it's very simple to use. VMware software is widely used by IT administrators VMware Software Defined Storage can be improved in the replication area. The solution has some…

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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 initial setup was straightforward. If you know how to plug in power and network you're pretty much qualified. They were on site to configure the network, the box to fit into our network architecture. Other than that, we self-managed from there."

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

"The solution provides many controllers."

"The solution is able to handle workloads and is easy to use. It allows us to actually manage the boxes in less time."

"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 most valuable feature is Safe Mode."

"The initial setup is pretty quick."

"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."

More Pure Storage FlashBlade pros

"The most valuable feature is the ability to share files across different platforms."

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

"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."

"It is incredibly scalable and stable."

"Technical support has been very helpful. They provide us with pretty good solutions that we can implement moving forward."

"The profile share is a valuable feature."

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

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

More IBM Spectrum Scale pros

"The most valuable features of VMware Software Defined Storage are scalability, high availability, and performance."

"The single management panel is the main feature that is wonderful for the customer."

"The most valuable features of VMware Software Defined Storage are scalability, high availability, and performance."

"The best part of the solution is that you can actually scale up to a large number of operating systems without additional hardware."

"VMware Software Defined Storage gives higher availability against data corruption."

"This is an easy-to-use product for adding flexibility to your storage solution."

"The solution is simple to configure and provides good performance and less footprint."

"The most valuable features of the solution are that it is easy to deploy and the support is really good."

Cons

"In terms of technical support, the experience has been mixed. The support is done through email and is not that great, making it a very problematic area I've been dealing with for over four years."

"The documentational aspect of FlashBlade needs improvement."

"We initially encountered challenges with the assembly process due to issues with the documentation required during setup, an area where Pure Storage needs improvement."

"There could be improvements in public cloud integration."

"Its configuration should be easier."

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

"I would like to have Snapshots and Snapmail in the next release. People who came from a NetApp background, especially expect these features."

"I would like to see more VM-Aware features in the next release of this solution."

More Pure Storage FlashBlade cons

"The solution's pricing could be better."

"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."

"This is probably the biggest challenge, getting everything upgraded, because it just takes time. We wish it was a faster solution to be able to do everything at once, but you have do each node individually. The more nodes, the longer it takes."

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

"Maybe it needs integration with HA."

"The biggest problem is that it is not able to provide block storage."

"The initial setup is complex, especially if trying to avoid erasure coding, as it requires more discs. Avoiding erasure coding can significantly increase costs."

"Integration with other vendors is not available."

More IBM Spectrum Scale cons

"It doesn't have the ability to be deployed on any kind of hardware and network connectors."

"The license model of the product is an area of concern where improvements are required."

"There is room for more integrations and plugins into more storages."

"VMware Software Defined Storage should include a shared database on a standard version."

"Simplifying the licensing model and making it cheaper would improve the solution."

"I'd like to see improved hardware compatibility"

"The performance is not as good as some competing products and reporting can be improved."

"The solution has some limitations in terms of replication to remote sites or cloud infrastructure, which need improvement."

Pricing and Cost Advice

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

"Our customers have seen a reduction in TCO."

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

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

"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."

"We used a reseller for the purchase."

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

"I have seen ROI. It has allowed me to increase the density of my VMs without having to purchase anything additional."

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."

"The product is quite expensive and is among the most expensive for this type of solution."

"The solution is very expensive."

"VMware Software Defined Storage is a slightly expensive solution."

"I believe there is a yearly licensing fee of around $2000 - $5000. I don't think there are additional costs above that but it depends on the type of infrastructure you're booting."

"A single socket costs you around US $6,000 for three years. At a minimum, you have a three load cluster for a medium or enterprise-scale company. It can get quite expensive because you're likely to need four to six sockets on the other side. It comes to around $30,000."

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Top Industries

By visitors reading reviews

Computer Software Company

14%

Financial Services Firm

12%

Manufacturing Company

Government

Financial Services Firm

20%

Manufacturing Company

13%

Computer Software Company

13%

Educational Organization

No data available

Company Size

By reviewers

Large Enterprise

Midsize Enterprise

Small Business

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?

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

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...

What do you like most about IBM Spectrum Scale?

It is a scalable solution.

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

IBM Spectrum Scale is very expensive with complex pricing models usually based on the amount of storage used or the n...

What needs improvement with IBM Spectrum Scale?

There is room for improvement in the web interface. There could be more information available, such as charts and gra...

What do you like most about VMware Software Defined Storage?

VMware Software Defined Storage gives higher availability against data corruption.

What is your experience regarding pricing and costs for VMware Software Defined Storage?

The price of VMware Software Defined Storage is on the pricey side, rated four out of five in cost. There is room for...

What needs improvement with VMware Software Defined Storage?

There is room for more integrations and plugins into more storages. More automation, such as using Playbook on Ansibl...

Dell PowerScale (Isilon) vs Pure Storage FlashBlade

Comparisons

Compared 20% of the time

Red Hat Ceph Storage vs Pure Storage FlashBlade

Compared 11% of the time

MinIO vs Pure Storage FlashBlade

Compared 11% of the time

Pure Storage FlashArray vs Pure Storage FlashBlade

Compared 10% of the time

VAST Data vs Pure Storage FlashBlade

Compared 10% of the time

More Pure Storage FlashBlade Competitors

Red Hat Ceph Storage vs IBM Spectrum Scale

Compared 26% of the time

DDN IME vs IBM Spectrum Scale

Compared 14% of the time

Portworx Enterprise vs IBM Spectrum Scale

Compared 12% of the time

Red Hat Gluster Storage vs IBM Spectrum Scale

Compared 8% of the time

More IBM Spectrum Scale Competitors

DataCore SANsymphony vs VMware Software Defined Storage

Compared 36% of the time

Red Hat Ceph Storage vs VMware Software Defined Storage

Compared 28% of the time

More VMware Software Defined Storage Competitors

Product Reports

Pure Storage FlashBlade

Download Pure Storage FlashBlade product report

IBM Spectrum Scale

Download IBM Spectrum Scale product report

VMware Software Defined Storage

June 2025

Download VMware Software Defined Storage product report

Also Known As

No data available

VMware SDS

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

VMware software-defined storage is a simple, yet intelligent, storage data center architecture that aligns with business and application demands—eliminating static, purpose-built and inefficient hardware with dynamic, agile and automated solutions.

VMware

Sample Customers

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

Information Not Available

Helse Nord, Sky

IBM Spectrum Scale vs. VMware Software Defined Storage