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IBM Spectrum Scale vs Microsoft Storage Spaces Direct comparison

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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

Everpure FlashArray
Sponsored
Average Rating
9.0
Reviews Sentiment
7.2
Number of Reviews
233
Ranking in other categories
All-Flash Storage (2nd)
IBM Spectrum Scale
Average Rating
8.4
Reviews Sentiment
7.1
Number of Reviews
14
Ranking in other categories
Software Defined Storage (SDS) (10th), Cloud Software Defined Storage (1st)
Microsoft Storage Spaces Di...
Average Rating
7.6
Reviews Sentiment
6.4
Number of Reviews
12
Ranking in other categories
Software Defined Storage (SDS) (8th)
 

Featured Reviews

Sowjanya MV - PeerSpot reviewer
Technical Lead at Wipro Limited
Has improved performance for mission-critical workloads and enabled seamless non-disruptive upgrades
The availability is 99.99%, which is the main factor any customer would need because their data should be available whenever they want to access it. This is one main critical thing. It is very easy to upgrade since Pure Storage FlashArray handles it well. Everything is non-disruptive now; previously, there were forklift shifts, but now that is not the case. Pure Storage FlashArray says no to forklift upgrades. Usually hardware requires downtime, but Pure Storage FlashArray has improved their footprint so that they are not asking for downtime; everything is just a non-disruptive activity, which is why customers are more inclined towards Pure Storage FlashArray. Customers want more of the models in their environment due to the performance they are giving, and everything is in one Pure1 Array console where we can view all the models on one page or just an orchestration tool. You don't miss anything; you have replication, notifications about replication, and details about which host groups replication is happening in and if that replication is successful or failed. On a daily basis, our purpose is to create volumes for infrastructure; our daily activities include creating volumes and mapping them to the host, doing any migrations from a VM, clearing the data stores, and carving the volumes to those VMs. One key factor is the data compression with a ratio of 5:1, focusing on space efficiency, inline deduplication, and the compression Pure Storage FlashArray works on; that is a major factor we can suggest to any customer. Analytical capabilities are crucial. Daily, we check the throughput and consumption, and Pure Storage FlashArray provides predictions for one year regarding usage. This prediction helps plan updates well ahead. For support, we just raise a case, and they follow up and get it done. There is also AI readiness, but with the model R2, we don't have much of that AI readiness. For others, we do have AI readiness that predicts capacity based on daily or monthly trends, enabling us to analyze how much space we need or if we need to expand the disk shelf. From an operational point of view, a good feature is that if you accidentally delete a volume, it will be retained in the destroyed state for the next twenty-four hours, which is not the same with any other vendor. I have worked in this storage domain for the past fifteen years, and this option is remarkable, benefiting any L1 or L2 engineer. Additionally, from a compliance perspective, Pure Storage FlashArray has REST APIs enabled. I have not explored automation much, but from a security standpoint, it is strong with encryption data. If you want to automate, you can easily integrate with all clouds and explore Pure Cloud for scheduling workloads, including volume creation. Customers find benefit in Pure Storage FlashArray's single management pane of glass due to the dual controller and active-active setup. If one of the controllers goes down, all workloads automatically shift to the other controller, ensuring their data is safe and accessible at all times. This is a highlighted feature that any customer desires because their data should always be accessible. For SAN workloads, we use Pure Storage FlashArray because for SAN FC fiber channel, we don't use it; we use NetApp for NAS activities. We have clearly split this, so SAN is for mission-critical applications, while network-attached storage handles file systems. This architecture helps us maximize the benefit from Pure Storage FlashArray due to the significant workloads from this giant retail client. From a footprint and energy consumption perspective, you can see energy consumption from the Pure1 storage portal on a daily basis, and it is very compact. The three models we use consume only three units, which is quite low. From a footprint and data center perspective, it doesn't occupy much space. As everything moves to cloud, there are requirements to avoid excess spending on data centers, and Pure Storage FlashArray is efficient in energy consumption and is environmentally friendly.
Sachin Prakash - PeerSpot reviewer
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.
Tomas Basus - PeerSpot reviewer
IT Professional at NIPOS
Optimized storage has supported high availability but performance and node limits still need work
The performance of Microsoft Storage Spaces Direct is challenging when trying to support both NVMe and SATA SSDs, and there are problems regarding performance that need to be addressed. I have found that performance is not as good as expected with Microsoft Storage Spaces Direct. It is risky because of quorum; it is better in three nodes, but my budget only allows for two nodes, so I need to use a witness, which is not an optimal configuration. I am not using the automatic rebalancing feature that much in Microsoft Storage Spaces Direct. I have not utilized nested resiliency in my operations. I am using the most standard features available in Microsoft Storage Spaces Direct.

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 very straightforward and very quick. It was up and running in our data center within 24 hours of receiving it."
"Data deduplication is one feature I found to be the most valuable in the tool...Stability-wise, I rate the solution a ten out of ten."
"Pure Storage FlashArray is simple and easy to use. It offers protection when removing devices. It has the ability to undo deletes."
"We consume less physical storage because of the solution’s deduplication and compression."
"We've had different types of storage, and three things of this solution are valuable. The first one is its outstanding performance. The second one is its stability. In the about three years that we've had it, we've had component failures, but we never had a service interruption or any data loss. The third one, which is really critical, is that it is super easy to use in terms of provisioning, storage, and managing the arrays. I'm able to maintain a multi-site environment with a couple of dozen arrays with a single mid-level storage admin."
"The availability and ease of use are the big features."
"We actually originally went with a competitor's product, and after about eight months, a lot of wrangling, had them buy it back from us, and then we bought a similar Pure Storage product, and it's just been great."
"The most valuable feature is it never goes down. We can expand and create volumes."
"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."
"GPFS monitoring is the best feature."
"There is nothing else that even compares to Spectrum Scale."
"It is incredibly scalable and stable."
"I would rate my overall experience with IBM Spectrum Scale as nine out of ten."
"We tested a complete site loss with the initial loss of the complete data center and the system was always up."
"We are using it for monitoring all of our storage."
"Its great servicing high availability. That is what it is used for."
"The performance is immediately noticeable by end users of all our on-premise applications."
"For an on-prem campus, it has been fine."
"Its technical support is excellent."
"The most valuable feature is that there is no single point of failure."
"The most valuable feature are the caching capabilities using the storage class memory."
"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 flash ability, in terms of tiering and caching, is amazing."
"It's mainly about the storage expansion, like in hyper-converged solutions."
 

Cons

"Everything has been good, but we faced one issue last year while migrating volumes from one Pure Storage to another. The snapshots were not visible in the Veeam backup portal."
"I would like FlashArray to add reports that help us forecast our predicted resource needs based on current usage."
"The main disadvantage of Pure Storage FlashArray is the price."
"Its price needs improvement. Its price is almost double than any other flash storage solution."
"Enhanced documentation and beginner-friendly guidelines would benefit users with less configuration experience."
"The solution is not cheap. It's much more expensive than DataCore."
"As partners, we should have the option to download the software, rather than have to go back through Pure to obtain it."
"Once, before Pure went public, we were a member of their customer advisory board and beta tested replication. One requested enhancement yet to manifest is the scheduling of snapshot replications."
"There is room for improvement in the web interface. There could be more information available, such as charts and graphs to monitor performance."
"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."
"I wish there were some graphical user interface to access the GPFS file system creation and monitoring."
"I believe there is no graphic user interface, so they should include it."
"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."
"The pricing and licensing model for this solution are complex and it is sometimes difficult to explain it to customers."
"The solution's pricing could be better."
"There can be improvements in fault tolerance and making erasure coding faster."
"The management tool within this solution could be improved. We would also like to be able to access services like Azure when using this solution."
"It is difficult to get a hardware compatibility certification for the solution."
"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 reason why this product is not being widely accepted by the public is that it doesn't include intuitive streamline, which makes it far from complete."
"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."
"The performance of Microsoft Storage Spaces Direct is challenging when trying to support both NVMe and SATA SSDs, and there are problems regarding performance that need to be addressed."
"Documentation management could be improved"
"I think the online documentation needs a lot of work and so do the sizing tools."
 

Pricing and Cost Advice

"Cost-wise, I imagine that the product's price would probably give you a nosebleed if you were a younger company."
"In terms of other contemporary arrays, Pure is something you need to have a use case for, as it's not priced for you to buy one off-the-shelf. If you have a use case, heavy lift Oracle Databases, any type of noticeable virtual desktop infrastructure (VDI), or need low latency and high throughput, you should consider all-flash at least and probably Pure Storage."
"I would prefer that they lower their pricing."
"We purchased a license to use this solution and we pay for the storage ourselves."
"The price is reasonable."
"It is a cheaper solution."
"It is cost-effective because after buying a subscription, they provide a service to upgrade hardware for free. They are providing so many features. When you consider the features provided, it is cost-effective."
"We have an Evergreen Storage subscription, which I think is a great feature."
"The licensing is based on the number of terabytes."
"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."
"Cost-wise the product is one of the more affordable within the category of products."
"With the data center licensing and everything that is connected to that, this solution is relatively costly."
"The solution is expensive."
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Top Industries

By visitors reading reviews
Manufacturing Company
13%
Comms Service Provider
10%
Financial Services Firm
10%
Outsourcing Company
9%
Financial Services Firm
17%
Construction Company
8%
Comms Service Provider
7%
Manufacturing Company
6%
Comms Service Provider
10%
Computer Software Company
9%
Government
9%
Manufacturing Company
8%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business73
Midsize Enterprise38
Large Enterprise161
By reviewers
Company SizeCount
Small Business6
Large Enterprise8
By reviewers
Company SizeCount
Small Business8
Midsize Enterprise1
Large Enterprise3
 

Questions from the Community

Which should I choose: HPE 3PAR StoreServ or Hitachi Virtual Storage Platform F Series?
Both are great platforms, but if you are considering all flash solutions, I would recommend you to consider Pure Stor...
What is your experience regarding pricing and costs for Pure Storage FlashArray?
When comparing cost, I find that the cost is either the same or slightly higher, but that is returned by the ease of ...
What needs improvement with Pure Storage FlashArray?
The only thing I think could be improved is price. The price is the main concern for our customers.
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...
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...
What is your primary use case for IBM Spectrum Scale?
My personal use of this product is for parallel writing or reading files.
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?
The performance of Microsoft Storage Spaces Direct is challenging when trying to support both NVMe and SATA SSDs, and...
 

Also Known As

Pure Storage FlashArray
No data available
MS Storage Spaces Direct
 

Overview

 

Sample Customers

Nielsen, Lamar Advertising, LinkedIn, Betfair, UT-Dallas
Information Not Available
Acuutech, Quest Technology Management, Bradley, Mead & Hunt
Find out what your peers are saying about IBM Spectrum Scale vs. Microsoft Storage Spaces Direct and other solutions. Updated: September 2026.
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