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IBM Spectrum Scale 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

Everpure FlashArray
Sponsored
Average Rating
9.0
Reviews Sentiment
7.2
Number of Reviews
231
Ranking in other categories
All-Flash Storage (3rd)
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) (9th)
 

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

"I cannot imagine my workflow without Everpure FlashArray because I do not have any other type of storage in use."
"The most valuable features of Pure Storage FlashArray are management and administration user-friendliness, provisioning, and performance."
"The deduplication and compression rates are beyond impressive."
"I like the performance. Performance-wise, it accommodates the needs of highly-critical servers. It is reliable."
"Cost, racial per terabyte, and speed is why we chose PureStorage. It was no brainer."
"It is the SAN backbone for our company."
"It saved a lot of space, as far as physical space in our data center."
"It is very easy to use."
"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."
"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."
"We tested a complete site loss with the initial loss of the complete data center and the system was always up."
"It is incredibly scalable; you can add more storage to it, add more file sets, and add it to more servers, making it a robust product that should be able to expand with us."
"I rate this product ten out of ten."
"The profile share is a valuable feature."
"We can have multiple systems within the same file system."
"Its great servicing high availability. That is what it is used for."
"It's mainly about the storage expansion, like in hyper-converged solutions."
"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."
"In terms of reliability, scalability, performance, security and so forth, it is definitely very good."
"Its technical support is excellent."
"The price performance is the best advantage of Microsoft Storage Spaces Direct."
"The flash ability, in terms of tiering and caching, is amazing."
"The most valuable feature are the caching capabilities using the storage class memory."
"For an on-prem campus, it has been fine."
 

Cons

"It was a little costly."
"In the next version of this program, I would like to see increased security, higher encryption, and faster throughput."
"We did have one hiccup with the integration of vCenter. When we were installing Pure Storage, we were using vCenter 6.7, which defaults to the HTML5 Web Client. The current plugin for Pure Storage doesn't show up in that client at all. You have to go and use the legacy FlexFlash client to see the Pure Storage plugin in vCenter."
"Pure Storage FlashArray could improve by being more secure."
"I would like to see additional features like performance monitoring, configuring alerts, and the customization of alert thresholds."
"I would love to see a true one click upgrade solution."
"The product should improve its response time. I have also encountered issues with its configuration."
"They can also include file services such as NAS shares and CIFS shares. There should be provisioning of the file shares from a unified array."
"They should probably simply the Red Hat implementation portion. This portion was not as straightforward as I would like it to be."
"The pricing and licensing model for this solution are complex and it is sometimes difficult to explain it to customers."
"There is room for improvement in the web interface. There could be more information available, such as charts and graphs to monitor performance."
"Initially, stability was a concern as we encountered numerous issues and errors."
"We do not feel as a company that the product can grow with us anymore, so we are not going to use it anymore."
"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."
"Maybe it needs integration with HA."
"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 management tool within this solution could be improved. We would also like to be able to access services like Azure when using this solution."
"Microsoft closed the shared cluster support, which is important for the solution."
"Documentation management could be improved"
"Microsoft's frontline support is not adequate if you rely on this for your business."
"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 think the online documentation needs a lot of work and so do the sizing tools."
"There is a lot of room for improvement. I would like to have more tools to monitor the function and problems."
"The main reason that we have not implemented this solution or put it into production is because of the pricing."
 

Pricing and Cost Advice

"Our licensing is on a yearly basis. So, every year, we renew. We could do a three-year contract, but right now, we only do a one-year."
"Pure Storage is all-flash, so this sometimes tends to make it a bit more expensive in the beginning."
"Cost-wise, it's been very effective."
"The solution is expensive."
"FlashArray is expensive, but the quality justifies the price."
"You can pay extra for Evergreen support, which gives you free upgrades when new features are introduced."
"You get what you pay for. It is expensive, but it really works."
"I'm good with the licensing. Of course, pricing can always be less... It's actually not a bad pricing model, considering I don't have to rip-and-replace."
"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."
"With the data center licensing and everything that is connected to that, this solution is relatively costly."
"The solution is expensive."
"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
Manufacturing Company
13%
Financial Services Firm
11%
Construction Company
10%
Comms Service Provider
7%
Financial Services Firm
16%
Manufacturing Company
8%
Construction Company
7%
Government
7%
Computer Software Company
11%
Financial Services Firm
9%
Comms Service Provider
9%
Manufacturing Company
8%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business71
Midsize Enterprise38
Large Enterprise159
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?
I find the pricing of Everpure FlashArray to be quite high compared to other storage solutions; however, the reliabil...
What needs improvement with Pure Storage FlashArray?
I believe we have covered the most important features; the architecture of Pure Storage is essential, and features su...
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: June 2026.
908,834 professionals have used our research since 2012.