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IBM Spectrum Virtualize vs Microsoft Storage Spaces Direct 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
7.5
Number of Reviews
39
Ranking in other categories
All-Flash Storage (12th), File and Object Storage (8th)
IBM Spectrum Virtualize
Ranking in Software Defined Storage (SDS)
13th
Average Rating
8.8
Reviews Sentiment
7.3
Number of Reviews
39
Ranking in other categories
No ranking in other categories
Microsoft Storage Spaces Di...
Ranking in Software Defined Storage (SDS)
9th
Average Rating
7.6
Reviews Sentiment
6.4
Number of Reviews
12
Ranking in other categories
No ranking in other categories
 

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 Virtualize is 2.1%, up from 1.5% compared to the previous year. The mindshare of Microsoft Storage Spaces Direct is 6.1%, down from 7.5% 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 FlashBlade3.3%
Microsoft Storage Spaces Direct6.1%
IBM Spectrum Virtualize2.1%
Other88.5%
Software Defined Storage (SDS)
 

Featured Reviews

MikaelHellström - PeerSpot reviewer
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.
AS
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.
Stanislaw Mielicki - PeerSpot reviewer
Solution architect at Netland
Achieve cost-effectiveness with superior performance while needing to address cluster support
I am working with Microsoft Storage Spaces Direct for applications, SQL, and VRS. I am an integrator for this solution The price performance is the best advantage of Microsoft Storage Spaces Direct. They introduced the All-Flash array using SSD or NVMe drives without cache drives. It is…

Quotes from Members

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

Pros

"The tool's most valuable features are data warehousing, speedy recovery, and analytics. Its latest release is cost-effective."
"The main feature I have found to be product replication."
"It is very easy to use, and it is very fast."
"The solution provides many controllers."
"The onboarding and integrated monitoring tools are pretty good."
"It performs well and it is also very fast."
"Using this solution has made our backups more reliable."
"I would rate Pure Storage FlashBlade a ten out of ten."
"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."
"IBM provides exceptional technical support, which I rate as the best along with Cisco."
"The most valuable feature is its reliability."
"It has the ability to seamlessly move hardware in and out as we refresh technology."
"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."
"It provides transparency, because of its advanced copy features."
"The biggest benefits of IBM Spectrum Virtualize are its stability, data security, and customer support."
"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."
"The initial setup is straightforward."
"Its technical support is excellent."
"The most valuable feature are the caching capabilities using the storage class memory."
"The price performance is the best advantage of Microsoft Storage Spaces Direct."
"The main positive impact that Microsoft Storage Spaces Direct has had on my company over the years is increasing performance; our checks show it is three times faster than VMware, making us extremely happy and motivated to keep using it."
"The main advantages are price and performance, and I am happy with the combination."
"One of the best things about Microsoft Storage Spaces Direct is that it allows for optimized storage solutions and high availability, which is beneficial for managing workloads efficiently."
"It's mainly about the storage expansion, like in hyper-converged solutions."
 

Cons

"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 only thing I feel FlashBlade is missing is the SOS API. If it had SOS API, that would put it well over the top."
"It would be nice if you could store file-based in the same box with the same technology."
"I would like to see better integration."
"I would like to see the licensing fees improved as well as the price per terabytes."
"They need better integration with public clouds along with a better hybrid solution."
"File storage needs a lot of improvement. Mainframe connectivity also needs improvement because it requires additional components to be integrated with Pure Storage FlashBlade. If you want to keep your backup data, then this becomes an even more expensive solution because Pure Storage FlashBlade will not be able to meet your backup needs."
"It's on the expensive side, as expected for a niche product."
"Adding features for data deduplication is one area of improvement."
"The training program could be improved."
"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."
"I would like to see more baseline replication and integration with the operating system between Vmware and IBMI."
"I would like to see them provide a unified platform that offers block, file, and object-based protocol access."
"They are actually working on one bug we found, which was with flash restore. This was the user interface design for virtual environments."
"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."
"It is scalable, but only beyond two nodes. If I go for two nodes it's not scalable. I need to build a complete cluster from the beginning if I'm going for two nodes."
"The integration is not difficult because there is no GUI, but we need to use a PowerShell command. This makes it difficult to monitor and to see the components' statuses."
"On a scale of one to ten, I would rate the customer service and technical support of Microsoft Storage Spaces Direct a three, as there were issues that the Microsoft team could not pinpoint, leading to delays in finding solutions."
"Microsoft closed the shared cluster support, which is important for the solution."
"More optimization could be done in terms of mirroring."
"Documentation management could be improved"
"There is a lot of room for improvement. I would like to have more tools to monitor the function and problems."
"It is difficult to get a hardware compatibility certification for the solution."
 

Pricing and Cost Advice

"The price could be cheaper."
"The pricing is relatively expensive due to the FlashBlade technology. However, for companies needing quick and reliable data access, the cost is justified."
"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."
"We used a reseller for the purchase."
"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 pricing for FlashBlade is between cheap and moderate."
"The price is a little high."
"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."
"This solution came as an additional cost for the TSM package we chose."
"We would like the CPU cycle to save more on the licensing costs for us."
"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."
"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."
"It has a lot of advanced functions for a reasonable price."
"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 solution is expensive."
"With the data center licensing and everything that is connected to that, this solution is relatively costly."
"Cost-wise the product is one of the more affordable within the category of products."
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Top Industries

By visitors reading reviews
Financial Services Firm
12%
Computer Software Company
10%
Manufacturing Company
10%
Government
7%
Performing Arts
16%
Manufacturing Company
11%
Computer Software Company
9%
Financial Services Firm
9%
Computer Software Company
16%
Government
9%
Manufacturing Company
8%
Financial Services Firm
8%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business11
Midsize Enterprise11
Large Enterprise21
By reviewers
Company SizeCount
Small Business11
Midsize Enterprise4
Large Enterprise31
By reviewers
Company SizeCount
Small Business8
Midsize Enterprise1
Large Enterprise3
 

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?
Regarding pricing, it is okay; we needed exactly this in size, and the price was a lot lower than competitors, making...
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...
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-...
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...
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 ...
How does VMware vSAN compare with Microsoft Storage Spaces Direct?
We found VMware’s vSAN was easy to set up, configure, and manage compared to other solutions we considered. It is bes...
What is your experience regarding pricing and costs for Microsoft Storage Spaces Direct?
Overall, I find the cost of Microsoft Storage Spaces Direct to be affordable for the on-prem Windows pure solution, b...
What needs improvement with Microsoft Storage Spaces Direct?
Microsoft should improve the management aspect of Microsoft Storage Spaces Direct, as we have raised multiple recomme...
 

Also Known As

No data available
No data available
MS Storage Spaces Direct
 

Overview

 

Sample Customers

ServiceNow, Mercedes-AMG Petronas Motorsport, Dominos, Man AHL
Pelephone, Sprint IT Enterprise Services
Acuutech, Quest Technology Management, Bradley, Mead & Hunt
Find out what your peers are saying about IBM Spectrum Virtualize vs. Microsoft Storage Spaces Direct and other solutions. Updated: December 2025.
879,853 professionals have used our research since 2012.