IBM Spectrum Scale vs ScaleIO [EOL] comparison

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

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Executive Summary

We performed a comparison between IBM Spectrum Scale and ScaleIO [EOL] based on real PeerSpot user reviews.

Find out what your peers are saying about StarWind, Nutanix, Red Hat and others in Software Defined Storage (SDS).

To learn more, read our detailed Software Defined Storage (SDS) Report (Updated: November 2026).

Buyer's Guide

Software Defined Storage (SDS)

November 2026

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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

Everpure FlashArray

Featured Reviews

Cristian Ion

Senior Information Technology Engineer at Eta2u

All-flash storage has unified my clients’ workloads and has reduced TCO through efficient data services

The pricing and licensing of Everpure FlashArray is a problem because Everpure is considered more expensive than competitors. IBM, Lenovo, and Dell are more aggressive on prices. It is a very complicated market, especially now, and I understand the prices are higher at Everpure because of the software and all the enhancements it has. However, in this competitive market, we have a big problem selling to customers that are on a tight budget. A product with better pricing would be a win in the end. The RC or C20, for example, was a very good product that I could sell more easily than other options. Everpure FlashArray//C is sufficient for most workloads and virtualization workloads if you do not have very large databases. A product like that helps, and perhaps a new product in the future that is a little cheaper than the current options would be a possibility to gain more market share. I see the return on investment clearly from using Everpure FlashArray, but the challenge is selling it to customers for the first time. There are many customers who fall in the sweet spot where they are too small for an X or even a C model. They need something a little cheaper, they have the money for a cheaper version, and they need the performance of a Pure system. These customers could be more easily approached if Everpure offers a version of a local device in the future that is even cheaper than the C-class. I am trying now to help customers understand the concept behind AG1. I know that AG1 is not profitable if capacity is less than 50 terabytes. However, some customers would be very willing to pay for 25 terabytes in a cloud operated by Pure and to have it accessible with very good speed. We will see what the future brings.

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Sachin Prakash

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.

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SunilKumar

Manager at Securetech

Meets our customers' needs but they should move towards high-level scaling

I the product already has scalability features, but in terms of size maybe they could do more to work with parent storage and move to high-level scaling. That area, I feel, is a place where there could be some more options in this solution. It would be a way to improve the scalability in another direction, maybe options to scale out rather than just up. So far we have done very few installations. So maybe in the coming days, weeks and months, we would be able to come up with some additional features that are needed, but right now the product has the competitive features that our clients need.

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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

"Because of the encryption, we have different storage and the encryption can go over both, therefore we are NCA compliant."

"The performance is very good."

"The compression and deduplication features help to make the best use of the capacity."

"Technical support has been amazing."

"The most valuable feature is how it simplifies the management of the SAN."

"The support has been very good from Pure Storage FlashArray."

"The most valuable features are extremely low latency, high IOPS with VMware, inline deduplication and compression."

"I would recommend Pure Storage, as it is well-established."

More Everpure FlashArray pros

"We use it for our data over multiple systems, and at the same time it is a shared file system that works pretty well for the most part."

"I find IBM Spectrum Scale to be an excellent product known for its fast parallel file system."

"It has been pretty reliable throughout the years. As far as capacity is concerned, it can handle most heavy loads."

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

"We tested a complete site loss with the initial loss of the complete data center and the system was always up."

"I rate this product ten out of ten."

"The profile share is a valuable feature."

"Its great servicing high availability. That is what it is used for."

More IBM Spectrum Scale pros

"Comparing other products that are competing with Dell EMC (Enhanced Memory Controller), Dell seems to us to always come out on the high-side."

"We are using it as the primary virtualization storage (both for internal corporate users and external customers) for VMware and Hyper-V virtualization platforms."

"Automatic rebalancing is the feature saving administration time, and also auto rebuilding."

"The ScaleIO UI: EMC has been working with storage for a long time; therefore, they know how to clearly present any important data, including data flow and each drive's IOPS/bandwidth, and allow the user to easily monitor bottlenecks and problems, especially the rebuild and rebalance status of child objects."

Cons

"I would rate this solution an eight. There's always room for improvement, nobody is perfect to get a ten out of ten. They do what they do well. It's not cheap but we it's for uses that we needed."

"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."

"The backend of this solution utilizes an Active/Passive architecture, rather than an Active/Active architecture, which is a disadvantage, when compared to some of its competitors. Its storage capacity should be expanded in the next release."

"We would always like to see higher performance, and lower pricing is always better."

"I'd like to see a move towards individual VMs for what the performance of each VM is in a VD infrastructure. I can see the overall volume, but I would love to see things in a more granular level on the VM side."

"I would rate this solution an eight. To make it a ten it would have to be a little cheaper."

"It would be nice to have a better view of the allocated capacity on their Platform as a Service solution because we have to do some manual calculations to understand how much we are going to pay every month to use the storage that is allocated."

"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."

More Everpure FlashArray cons

"The solution's pricing could be better."

"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."

"The biggest problem is that it is not able to provide block storage."

"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."

"Maybe it needs integration with HA."

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

"Integration with other vendors is not available. This feature would be very helpful."

"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."

More IBM Spectrum Scale cons

"I think ScaleIO already has some features for scalability as it is part of the reason for the product, but in terms of size, maybe they should try to address parent storage."

"If they could introduce a write cache feature, the product would be perfect overall."

"Ecosystem around the product: There is no built-in system for viewing history data, such as volume IOPS. We have to provide graphing by Prometheus and Grafana, which would be a good new feature in ScaleIO."

"There is room for improvement in the area of horizontal scaling."

"It would be nice to set minimum IOPS per volume, besides just the maximum, to be able to satisfy this demand from customers out-of-the-box, not by calculating number of disks, etc."

Pricing and Cost Advice

"In comparison to the competitors, Pure is very price-competitive for the future functionality that it provides."

"The price was more favorable than Dell EMC."

"The guaranty that Pure Storage provides when you purchase it doesn't meet the overall capacity needs to provide extra storage, if needed. Thus, it is not meeting our expectations."

"It is not the cheapest one out there. We're paying yearly, but I'm not 100% sure."

"The solution is expensive."

"It's priced higher than the market."

"The licensing is $100,000."

"I would prefer that they lower their pricing."

More Everpure FlashArray pricing and cost advice

"The solution is costly but reliable."

"The licensing is based on the number of terabytes."

"The licensing model is complex and depends on factors such as the number of processing cores and the amount of storage."

Information not available

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Top Industries

By visitors reading reviews

Manufacturing Company

14%

Comms Service Provider

10%

Financial Services Firm

10%

Outsourcing Company

Financial Services Firm

16%

Construction Company

Comms Service Provider

Manufacturing Company

No data available

Company Size

By reviewers

Large Enterprise

Midsize Enterprise

Small Business

By reviewers
Company Size	Count
Small Business	74
Midsize Enterprise	38
Large Enterprise	161

By reviewers
Company Size	Count
Small Business	6
Large Enterprise	8

No data available

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...

See all answers

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 ...

See all answers

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.

See all answers

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...

See all answers

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...

See all answers

What is your primary use case for IBM Spectrum Scale?

My personal use of this product is for parallel writing or reading files.

See all answers

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Product Reports

Buyer's Guide

Everpure FlashArray

November 2026

Download Everpure FlashArray product report

Buyer's Guide

IBM Spectrum Scale

October 2026

Download IBM Spectrum Scale product report

Buyer's Guide

Software Defined Storage (SDS)

November 2026

Download ScaleIO [EOL] product report

Also Known As

Pure Storage FlashArray

No data available

EMC ScaleIO

Overview

The FlashArray family delivers consistent, high-performance data services across block, file, and object workloads. As part of the Everpure Platform, it provides the foundation for a unified data plane, enabling applications to reliably access, protect, and manage data across environments with simplicity and predictability. With built-in capabilities such as inline data reduction, snapshots, replication, and ransomware resilience, FlashArray ensures efficient operations, protected data, and consistent application uptime.

As the foundation of the (unified) data plane, FlashArray enables policy-driven automation, monitoring, and centralized management while integrating across cloud and on-premises environments. Built on an Evergreen architecture, it supports non-disruptive upgrades and continuous performance improvements over time while simplifying operations at scale.

What Key Features Does FlashArray Offer?

Simplicity and Speed: Easy management and rapid performance enhancements.
Data Reduction: Effective deduplication and compression.
Flash Architecture: Seamless upgrades and outstanding resilience.
VMware Integration: Excellent compatibility with virtualization platforms.
Predictive Analytics: Strong insights for proactive management.

What Benefits Should Users Consider?

Reliability: Proactive support with minimal downtime.
Efficiency: Reduced storage footprint and enhanced data management.
Performance: Faster processing speeds and low latency.
User Experience: Simplified management with Evergreen model.

In industries like finance, banking, and healthcare, FlashArray supports high-performance storage needs focusing on virtualization and database environments. Employed for VMware workloads, disaster recovery, and storage provisioning, it ensures application performance in private or hybrid cloud setups while enhancing management of virtualized environments.

Everpure (formerly Pure Storage)

IBM Spectrum Scale provides scalable, high-performance file management with seamless data sharing across platforms. Highly valued for parallel file access and integration with existing systems, it ensures fast data replication and recovery, minimizing dependence on specific hardware.

IBM Spectrum Scale is ideal for tasks requiring high availability and extensive file sharing across Linux, AIX, and Windows platforms. Its capability to handle large-scale data processing, virtualized storage integration, and fault tolerance ensures robustness in demanding environments. The system's compatibility with existing infrastructure eliminates the need for new network setups, supporting distributed systems effectively. However, enhancements in encryption, block storage, pricing complexity, and network monitoring are areas for growth.

What Are the Key Features of IBM Spectrum Scale?

Reduced Overhead: Enhances performance with low system demands.
Seamless High Availability: Ensures continuous data access and system reliability.
Platform Compatibility: Supports data sharing across Linux, AIX, and Windows.
Data Replication: Provides fast replication and efficient recovery capabilities.
Virtualized Storage Integration: Connects easily with virtual environments for optimal performance.

What Benefits Should Users Look for in IBM Spectrum Scale?

Improved Performance: Handles heavy data loads and parallel file access efficiently.
Scalability: Facilitates growth without compromising system integrity.
Fault Tolerance: Minimizes risk with robust error management.
Cost Efficiency: Utilizes existing infrastructure, reducing additional costs.
Data Processing Support: Enhances capabilities for complex data tasks and regulatory reporting.

In industries like finance and technology, IBM Spectrum Scale is implemented to support shared file systems and virtualization tasks such as SAS work, DR failover, and NFS exports. Its robust architecture aids in handling large-scale banking projects and regulatory compliance, making it a reliable choice for data-intensive environments.

IBM

ScaleIO is purposely designed to be an enterprise-grade scale-out software-defined storage solution. It applies the principles of server virtualization to standard x86 server flash and hybrid media, turning them into high performance, sharable, pools of storage. Whether your block storage needs are for traditional, modern or cloud workloads, ScaleIO has you covered.

Dell Technologies

Sample Customers

Nielsen, Lamar Advertising, LinkedIn, Betfair, UT-Dallas

Information Not Available

Check Point Software Technologies, Blue Central, Deltares, Sentinel Technologies, The Binding Site Group, Swisscom, Itrica

Buyer's Guide

Software Defined Storage (SDS)

November 2026

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