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IBM Spectrum Scale vs VMware Software Defined 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)
8th
Average Rating
8.8
Reviews Sentiment
7.8
Number of Reviews
38
Ranking in other categories
All-Flash Storage (16th), File and Object Storage (8th)
IBM Spectrum Scale
Ranking in Software Defined Storage (SDS)
10th
Average Rating
8.6
Reviews Sentiment
6.9
Number of Reviews
13
Ranking in other categories
Cloud Software Defined Storage (2nd)
VMware Software Defined Sto...
Ranking in Software Defined Storage (SDS)
17th
Average Rating
8.2
Reviews Sentiment
6.9
Number of Reviews
7
Ranking in other categories
No ranking in other categories
 

Mindshare comparison

As of September 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 4.2%, down from 4.9% compared to the previous year. The mindshare of VMware Software Defined Storage is 1.2%, up from 0.9% 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 FlashBlade4.2%
IBM Spectrum Scale4.2%
VMware Software Defined Storage1.2%
Other90.4%
Software Defined Storage (SDS)
 

Featured Reviews

Eric Black - PeerSpot reviewer
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.
Bernd Stroehle. - PeerSpot reviewer
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.
MohammadJundiah - PeerSpot reviewer
Data security and performance excel but integration and licensing need improvement
I used Nutanix for its hyper-converged infrastructure capabilities and VMware Site Recovery for disaster recovery.  Additionally, I worked with VMware Software Defined Storage both internally and with partners to consolidate servers into one solution The most valuable features of VMware Software…

Quotes from Members

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

Pros

"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."
"Approximately 40% to 50% of my time is saved using Pure Storage FlashBlade compared to different products."
"It uses the same platform for connectivity so integration is seamless."
"The most valuable features of FlashBlade include its replication capabilities, reports, and easy allocation. Everything is user-friendly."
"The most valuable features include the ease of implementation, ease of use and the speed that you can do backup and recovery on."
"It's very easy-to-use."
"The initial setup is pretty easy and simple."
"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."
"I find IBM Spectrum Scale to be an excellent product known for its fast parallel file system."
"We can have multiple systems within the same file system."
"The high performance of the solution is its most valuable aspect. If you compare it to other storage solutions, it's much better."
"We are using it for monitoring all of our storage."
"I rate this product ten out of ten."
"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."
"The profile share is a valuable feature."
"It is a scalable solution."
"VMware Software Defined Storage gives higher availability against data corruption."
"The most valuable features of VMware Software Defined Storage are scalability, high availability, and performance."
"This is an easy-to-use product for adding flexibility to your storage solution."
"The best part of the solution is that you can actually scale up to a large number of operating systems without additional hardware."
"The most valuable features of the solution are that it is easy to deploy and the support is really good."
"The solution is simple to configure and provides good performance and less footprint."
"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."
 

Cons

"On our dedupe during our initial buy, we were expecting a number a little higher like 4x. However, we are getting about 3.6. While it is close enough, it doesn't quite hit the numbers. So, this has been a challenge."
"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."
"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."
"It would be nice if you could store file-based in the same box with the same technology."
"The documentational aspect of FlashBlade needs improvement."
"In the realm of micro-services, I think that Pure Storage can do well if they start getting in there and making their arrays more micro-services ready."
"I would also like to see better support for CIFS workloads."
"We initially encountered challenges with the assembly process due to issues with the documentation required during setup, an area where Pure Storage needs improvement."
"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."
"The solution's pricing could be better."
"Integration with other vendors is not available."
"They should probably simply the Red Hat implementation portion. This portion was not as straightforward as I would like it to be."
"The initial setup is complex, especially if trying to avoid erasure coding, as it requires more discs. Avoiding erasure coding can significantly increase costs."
"Maybe it needs integration with HA."
"I believe there is no graphic user interface, so they should include it."
"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."
"VMware Software Defined Storage should include a shared database on a standard version."
"The solution has some limitations in terms of replication to remote sites or cloud infrastructure, which need improvement."
"It doesn't have the ability to be deployed on any kind of hardware and network connectors."
"I'd like to see improved hardware compatibility"
"The license model of the product is an area of concern where improvements are required."
"Simplifying the licensing model and making it cheaper would improve the solution."
"There is room for more integrations and plugins into more storages."
"The performance is not as good as some competing products and reporting can be improved."
 

Pricing and Cost Advice

"The price could be cheaper."
"I rate the tool's pricing a seven to eight out of ten."
"I feel that the price could always be lowered."
"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 of this solution could be made more affordable."
"I understand that it is competitively priced compared to other brands."
"The product is very expensive."
"The pricing is relatively expensive due to the FlashBlade technology. However, for companies needing quick and reliable data access, the cost is justified."
"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 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."
"The solution is very expensive."
"The product is quite expensive and is among the most expensive for this type of solution."
"VMware Software Defined Storage is a slightly expensive solution."
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Top Industries

By visitors reading reviews
Computer Software Company
12%
Financial Services Firm
12%
Manufacturing Company
10%
Government
7%
Financial Services Firm
20%
Manufacturing Company
12%
Computer Software Company
10%
Educational Organization
8%
No data available
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business11
Midsize Enterprise11
Large Enterprise20
By reviewers
Company SizeCount
Small Business6
Large Enterprise7
By reviewers
Company SizeCount
Small Business2
Midsize Enterprise1
Large Enterprise6
 

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 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 is your primary use case for IBM Spectrum Scale?
My personal use of this product is for parallel writing or reading files.
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...
What is your primary use case for VMware Software Defined Storage?
I used Nutanix for its hyper-converged infrastructure capabilities and VMware Site Recovery for disaster recovery. Ad...
 

Also Known As

No data available
No data available
VMware SDS
 

Overview

 

Sample Customers

ServiceNow, Mercedes-AMG Petronas Motorsport, Dominos, Man AHL
Information Not Available
Helse Nord, Sky
Find out what your peers are saying about IBM Spectrum Scale vs. VMware Software Defined Storage and other solutions. Updated: July 2025.
866,744 professionals have used our research since 2012.