IBM Spectrum Scale vs VMware vSAN comparison

IBM and VMware are both solutions in the Software Defined Storage (SDS) category. Additionally, 100% of IBM users are willing to recommend the solution, compared to 87% of VMware users who would recommend it.

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Executive Summary

We performed a comparison between IBM Spectrum Scale and VMware vSAN based on real PeerSpot user reviews.

Find out in this report how the two Software Defined Storage (SDS) solutions compare in terms of features, pricing, service and support, easy of deployment, and ROI.

To learn more, read our detailed IBM Spectrum Scale vs. VMware vSAN Report (Updated: March 2025).

Buyer's Guide

IBM Spectrum Scale vs. VMware vSAN

March 2025

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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

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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Yves Sandfort

CEO & Majority Shareholder at Comdivision Consulting GmbH

Gives us a lot of advantages when we need to expand resources

Stability can be improved. Adding all these new features is nice, but we are now at the level where most of the features you need in production are there. The stability is not from a day-to-day operations perspective, but more from a supportability perspective, because currently some of the support scenarios require you to completely evacuate hosts or the complete cluster. That sometimes can be a stretch. This would clearly be an improvement if the support teams were given additional tools to make that easier. Upgradability could be a bit easier sometimes. We are now where vSAN can be updated without ESXi, but there is still enough dependency. So that would be good if that actually would be uncoupled even more. Dashboards are there, and we use vROps as well. So, we have all the beauty of capacity planning and everything over there. That's not really something where we need a lot of other things.

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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

"It's very easy-to-use."

"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."

"Pure Storage FlashBlade is user-friendly. It's replication feature is great because it has active replication and active DR. That's the beauty of the product. It's a perfect solution for block storage."

"It is very easy to use, and it is very fast."

"The initial setup is pretty quick."

"The most valuable feature of this solution is performance."

"It has absolutely simplified our storage because the dashboards on the consoles show a clear understanding of where you are, and it is also very easy to provision. This been a big help for our teams."

"The most valuable features of FlashBlade include its replication capabilities, reports, and easy allocation. Everything is user-friendly."

More Pure Storage FlashBlade pros

"The profile share is a valuable feature."

"We are using it for monitoring all of our storage."

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

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

"I would rate my overall experience with IBM Spectrum Scale as nine out of ten."

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

"It is incredibly scalable and stable."

"We can have multiple systems within the same file system."

More IBM Spectrum Scale pros

"The main advantage is that it's all in the box, with VMware vCenter Server product."

"The solution fits well with my requirements."

"The most valuable feature is the fast performance."

"The most valuable features are productivity and data storage."

"Easy-to-use, and easy-to-scale product."

"The most valuable feature of VMware vSAN is you do not have to use additional hardware for storage. The operation of VMware vSAN does not take a lot of effort. If you have VMware technology on your site, then it's easy for the operational support of the system."

"It is scalable, overall. If you need to add storage, it makes it easy to scale by adding additional hard drives into the existing servers or you can add storage by just adding more servers."

"VMware comes with different stacks like VMware Cloud Foundation, which is integrated with different VMware modules. There's interoperability between VMware products."

More VMware vSAN pros

Cons

"The documentational aspect of FlashBlade needs improvement."

"I would like to see better integration."

"I want efficiency. FlashBlade doesn't have efficiency now."

"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."

"Its configuration should be easier."

"I would like to see more monitoring capability included in the next release of this solution."

"It would be nice if you could store file-based in the same box with the same technology."

"We haven't been able to use much of the cloud area of Pure Storage. We have a storage server and it would be better if it could integrate with other cloud features of this solution."

More Pure Storage FlashBlade cons

"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."

"I believe there is no graphic user interface, so they should include it."

"There can be improvements in fault tolerance and making erasure coding faster."

"Integration with other vendors is not available."

"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."

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

"The solution's pricing could be better."

"It would be helpful if there was a graphical user interface that could walk you through the deployment process. The instructions surrounding setup aren't the best. They need to be more step-by-step."

More IBM Spectrum Scale cons

"There could be more features with the automatic backup."

"There is a room for improvement on the latest version of compatibility with the VMware product, especially for vSAN and with other vendors on their motherboards and driver configurations."

"Lacks sufficient storage terabytes."

"As no product is 100% perfect, the price for VMware vSAN could still be improved, though it is good when compared to some of its competitors."

"It should be easier to use."

"Troubleshooting tools could be improved."

"I am looking for more of a software-defined storage platform that uses different protocols, such as iSCSI, NFS, and CIS, and maybe also has an object as part of that. They should 100% make it more of a storage-based product where it is not linked just to VMware, and it also has NFS and iSCSI built-in at a scalable level. They should turn it more into a dedicated storage-as-a-service platform instead of just being built into the VMware kernel. Their level one and level two support is not at all good, and it should be improved."

"Virtual machines disk size cannot cap more than a single node. For a VDI user, it may not save enough to hold a file server or exchange server on a single node storage space."

More VMware vSAN cons

Pricing and Cost Advice

"The price could be cheaper."

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

"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."

"Our licensing is renewed annually."

"The price is a little high."

"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."

"Licensing fees are paid yearly."

More Pure Storage FlashBlade pricing and cost advice

"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."

"The solution is costly but reliable."

"In comparison with other solutions, such as HP or Cisco, I find the solution to be quite pricey."

"With the new pricing model, it's expensive for the customer."

"Cost-wise, the Nutanix licenses were cheaper, but in terms of the hardware, there was some contention around it. So, in terms of implementation, the way Nutanix was projecting the implementation on their end was that there were a lot of open-source admin platforms. vSAN is a licensed product in VMware, and Nutanix was proposing a KVM solution, which is open source. That's why their pricing was a bit cheaper, but when we were trying to compare it with an enterprise version of their management platform, it boiled down to the VMware vSAN being most effective in the long run."

"The price of vSAN could be lower."

"There is a license to use this solution and we pay approximately $30,000 annually. There were not any additional fees required other than the license. The solution is expensive."

"With vSAN, we didn't find the market that competitive."

"vSAN has many versions with standard and advanced including Enterprise and Enterprise Plus. Regarding the Enterprise and the Advanced, it could be lower."

"It is not that expensive, and it is not even cheap. If it is designed in a proper way, it has good pricing, but if you do oversizing, the price will be high. There are different licensing models."

More VMware vSAN pricing and cost advice

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Top Industries

By visitors reading reviews

Educational Organization

37%

Computer Software Company

11%

Financial Services Firm

Manufacturing Company

Financial Services Firm

20%

Computer Software Company

14%

Manufacturing Company

14%

Educational Organization

53%

Computer Software Company

Manufacturing Company

Financial Services Firm

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...

See all answers

What is your experience regarding pricing and costs for Pure Storage FlashBlade?

The pricing for FlashBlade is between cheap and moderate. FlashBlade is worth the money due to the experience and per...

See all answers

What needs improvement with Pure Storage FlashBlade?

Its configuration should be easier. There should be easier language for the configuration.

See all answers

What do you like most about IBM Spectrum Scale?

It is a scalable solution.

See all answers

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...

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What needs improvement with IBM Spectrum Scale?

There can be improvements in fault tolerance and making erasure coding faster. Additionally, it would be beneficial t...

See all answers

What Is The Biggest Difference Between vSAN And VxRail?

While both run on the vSAN technology from VMware, vSAN needs to be deployed on vSAN ready nodes while VxRail is an e...

See all answers

Which would you choose - Nutanix Acropolis AOS or VMware vSAN?

We found the reduced power consumption with Nutanix Acropolis AOS a very attractive feature. We also like the interfa...

See all answers

How does HPE Simplivity compare with VMware vSAN?

HPE SimpliVity is a hyper-converged infrastructure solution that is primarily geared to mid-sized companies. We resea...

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Comparisons

Dell PowerScale (Isilon) vs Pure Storage FlashBlade

Compared 21% of the time

VAST Data vs Pure Storage FlashBlade

Compared 12% 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 8% of the time

More Pure Storage FlashBlade Competitors

Red Hat Ceph Storage vs IBM Spectrum Scale

Compared 28% of the time

Portworx Enterprise vs IBM Spectrum Scale

Compared 15% of the time

DDN IME vs IBM Spectrum Scale

Compared 15% of the time

IBM Spectrum Accelerate vs IBM Spectrum Scale

Compared 8% of the time

Red Hat Gluster Storage vs IBM Spectrum Scale

Compared 5% of the time

More IBM Spectrum Scale Competitors

VxRail vs VMware vSAN

Compared 18% of the time

Microsoft Storage Spaces Direct vs VMware vSAN

Compared 16% of the time

HPE SimpliVity vs VMware vSAN

Compared 8% of the time

Dell PowerFlex vs VMware vSAN

Compared 8% of the time

Red Hat Ceph Storage vs VMware vSAN

Compared 7% of the time

More VMware vSAN Competitors

Product Reports

Buyer's Guide

Pure Storage FlashBlade

March 2025

Download Pure Storage FlashBlade product report

Buyer's Guide

IBM Spectrum Scale

March 2025

Download IBM Spectrum Scale product report

Buyer's Guide

VMware vSAN

March 2025

Download VMware vSAN product report

Also Known As

No data available

vSAN

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 vSAN is a software-defined storage product that is used in collaboration with VMware ESXi hypervisor and that provisions and manages storage based on policies, regardless of the underlying hardware. The solution enables you to prime your business for growth through its seamless evolution (it is integrated with vSphere and requires no new tools), its flexibility, and its multi-cloud capabilities. As an industry-leading software, VMware vSAN provides high levels of performance with minimal impact on CPU and memory.

VMware vSAN Features

VMware vSAN has many valuable key features. Some of the most useful ones include:

Storage policy-based management (SPBM): VMware vSAN supports storage policy-based management for automated management of storage profiles.

Software-defined data-at-rest encryption: With this VMware vSAN feature, you can prevent unauthorized access of data at rest.

Multiple nodes: VMware vSAN provides clusters that can include as few as 2 nodes or as many as 64 nodes.

High security and availability: VMware vSAN offers stretched clusters, allowing more than one virtualization host server to be used in the same setup, promoting higher security as well as availability.

Deduplication: VMware vSAN’s deduplication compresses data to ensure efficient storage management and security.

HCI mesh updates: VMware vSAN clusters can share storage capacity with non-HCI Sphere clusters and can adopt HCI without having to scale computing resources and storage or replace existing servers.

Simplified file services: With VMware vSAN’s file services, backup of file shares is simplified. You can use APIs that allow backup and recovery software vendors to integrate with your VMware vSAN file services, which enables backup software to track new data and add scalability enhancements to files.

VMware vSAN Benefits

There are many benefits to implementing VMware vSAN. Some of the biggest advantages the solution offers include:

Reduced total cost of ownership (TCO): VMware vSAN helps you reduce upfront costs for businesses because it can be easily deployed on inexpensive x86 servers. In addition, its highly scalable infrastructure and quick deployment also save organizations time and money, making it an efficient storage solution.

Good manageability: VMWare vSAN is easy to set up, manage, and provision, without sacrificing performance.

Scalability: VMware vSAN is agile and allows administrators to scale storage on demand, quickly, and efficiently via policies and rules.

Simplicity: VMWare vSAN is simple to configure since it is embedded in the vSphere hypervisor. Installing it using the vSphere Web Client can be done quickly.

Reduced risk: VMWare vSAN reduces the risk associated with digital transformations by utilizing existing tools, skill sets, and solutions.

Reviews from Real Users

Below are some reviews and helpful feedback written by PeerSpot users currently using the VMware vSAN solution.

PeerSpot user Yves S., CEO, Cloud Evangelist at Comdivision Consulting GmbH, says, “vSAN gives us a lot of advantages when we need to expand resources. We have an overall larger host infrastructure, and we split that up for specific customer test and use cases. In that specific scenario, we can easily add more hosts or reduce the number of hosts in the environment.”

A reviewer who works in Infrastructure Security explains, “The ease of use is great. The initial setup and upgrade process was pretty straightforward. And, technical support is great.”

Laurent N., Director at Softlogic, comments, "The feature that I have found most valuable is that it is easy to deploy. It is easy to create and delete virtual servers. It is easy to create the load balancing and the clustering."

VMware

Sample Customers

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

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Buyer's Guide

IBM Spectrum Scale vs. VMware vSAN

March 2025

Free Report: IBM Spectrum Scale vs. VMware vSAN

Find out what your peers are saying about IBM Spectrum Scale vs. VMware vSAN and other solutions. Updated: March 2025.

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