Dell PowerScale (Isilon) vs Red Hat Ceph Storage comparison

Dell Technologies and Red Hat are both solutions in the File and Object Storage category. Dell Technologies is ranked #2 with an average rating of 8.7, while Red Hat is ranked #1 with an average rating of 9.3. Dell Technologies holds a 7.1% mindshare in FaOS, compared to Red Hat’s 15.3% mindshare. Additionally, 97% of Dell Technologies users are willing to recommend the solution, compared to 82% of Red Hat users who would recommend it.

Comparison Buyer's Guide

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Executive SummaryUpdated on Nov 4, 2024

Red Hat Ceph Storage and Dell PowerScale Isilon are key players in the enterprise storage solutions market. Dell PowerScale Isilon appears to have an edge due to its robust features, although it comes at a higher price point.

Features: Red Hat Ceph Storage offers significant scalability, seamless integration with cloud services, and high availability, ideal for flexible deployments across varied environments. Dell PowerScale Isilon is recognized for handling massive data workloads, providing straightforward data access and management, and offering comprehensive scalability and performance-enhancing features.

Room for Improvement: Red Hat Ceph Storage could benefit from easier initial deployment processes, enhanced user interfaces, and better support for non-standard network configurations. Dell PowerScale Isilon could improve in reducing dependency on hardware-specific features, optimizing costs for small to medium businesses, and integrating more fully with diverse cloud environments.

Ease of Deployment and Customer Service: Red Hat Ceph Storage requires a greater depth of technical knowledge for setup but presents versatile deployment options. Dell PowerScale Isilon is acclaimed for its straightforward deployment process and extensive customer support, facilitating quicker onboarding and immediate operational efficiency.

Pricing and ROI: Red Hat Ceph Storage's lower setup costs offer a cost-effective solution suitable for smaller to medium-sized organizations with favorable ROI due to its economic scalability. Dell PowerScale Isilon, despite a higher initial investment, ensures strong ROI by efficiently managing large data volumes, making it valuable for large-scale enterprises demanding robust, scalable storage solutions.

To learn more, read our detailed Dell PowerScale (Isilon) vs. Red Hat Ceph Storage Report (Updated: December 2025).

Buyer's Guide

Dell PowerScale (Isilon) vs. Red Hat Ceph Storage

December 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

Mindshare comparison

As of January 2026, in the File and Object Storage category, the mindshare of Pure Storage FlashBlade is 5.3%, down from 6.0% compared to the previous year. The mindshare of Dell PowerScale (Isilon) is 7.1%, down from 8.4% compared to the previous year. The mindshare of Red Hat Ceph Storage is 15.3%, down from 21.3% compared to the previous year. It is calculated based on PeerSpot user engagement data.

File and Object Storage Market Share Distribution
Product	Market Share (%)
Red Hat Ceph Storage	15.3%
Dell PowerScale (Isilon)	7.1%
Pure Storage FlashBlade	5.3%
Other	72.3%

File and Object Storage

Featured Reviews

MikaelHellström

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.

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Bill Engelmeyer

Systems Engineer at Unisity LLC

Flexibility and reliability have supported seamless data growth

I cannot think of anything to improve about Dell PowerScale (Isilon). The hardest challenge we have is due to how we've bought things over time. The way that we moved to the PowerEdge platform for the newer systems creates a scale problem as I still buy the older style systems, which are more dense storage. They're different chassis, so the problem we run into in the data center is the depth of the actual equipment. The newer equipment, if we buy an FX910 or a 900, it's a lot shorter in scale than if I buy an 83,000, which is much bigger. This makes it more complicated for deployment.

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Rifat Rahman

Infrastructure Architect & CEO at Tirzok Private Limited

Offers reliable performance and availability for large deployments

I would like to see improvements in Red Hat Ceph Storage not because I necessarily think it needs improvement, but because I generally prefer to do things manually rather than following the containerization part. Current deployments are based on containers, but I deploy manually with my scripts and controls. If there are no Kubernetes-like requirements, I often prefer to deploy a whole manual process. I don't ask for improvements in the deployment model because Red Hat has its own philosophy about making things, but it's my personal choice that I prefer things manually. Some features are available only in the containerization part, so if those are also available in manual deployment, that will help.

Read full review

Quotes from Members

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

Pros

"The most valuable features are the Metro clustering, and disaster recovery."

"The snapshots, replication, and the ability to have immutable blades are the most valuable features. You're putting data snapshots out in those blades, and they cannot be touched. Its performance is great."

"The product is scalable and easy to expand."

"FlashBlade offers low latency, high throughput, and seamless scalability."

"The performance of FlashBlade is excellent. It does not necessarily leverage the SOS API that some of the newer products leverage, but I found its speed pretty much on par and comparable. It is fast, and it does what it is supposed to do."

"The main feature I have found to be product replication."

"The solution is able to handle workloads and is easy to use. It allows us to actually manage the boxes in less time."

"It performs well and it is also very fast."

More Pure Storage FlashBlade pros

"The solution provides massive performance, scalability, efficiency, and ease of management."

"Dell PowerScale's performance is good."

"My experience when deploying Dell PowerScale (Isilon) was very straightforward, as we had Dell come on site to do all the actual setup, which was a big help."

"On a scale of one to ten, with one being worst and ten being best, I would rate Dell PowerScale (Isilon) a ten."

"PowerScale allows us to manage storage without managing RAID groups or migrating volumes between controllers. It has really simplified things. We're not having to worry about the underlying infrastructure. That takes care of itself. We just worry about the data. It's really easy for deploying and managing storage at the petabyte scale."

"The reliability and stability of Dell PowerScale (Isilon) is good, with no downtime."

"Dell PowerScale has the SmartConnect and SmartConnect Pro features. That's why I like the product."

"For maximizing storage utilization, PowerScale is great. When you write the data to it, it spreads it out to all the nodes, so you get all the performance from the entire pool."

More Dell PowerScale (Isilon) pros

"The scalability feature is used by all users and is critical for our operations."

"High reliability with commodity hardware."

"Replicated and erasure coded pools have allowed for multiple copies to be kept, easy scale-out of additional nodes, and easy replacement of failed hard drives. The solution continues working even when there are errors."

"Ceph Storage allows us to add value related to cost and offers a unique experience compared to traditional storage."

"Ceph has simplified my storage integration. I no longer need two or three storage systems, as Ceph can support all my storage needs. I no longer need OpenStack Swift for REST object storage access, I no longer need NFS or GlusterFS for filesystem sharing, and most importantly, I no longer need LVM or DRBD for my virtual machines in OpenStack."

"Ceph Storage allows us to add value related to cost and offers a unique experience compared to traditional storage."

"Stratus allows more reliability than all the other types of computers available."

"The high availability of the solution is important to us."

More Red Hat Ceph Storage pros

Cons

"We initially encountered challenges with the assembly process due to issues with the documentation required during setup, an area where Pure Storage needs improvement."

"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."

"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."

"Pure Storage FlashBlade should improve on more cloud integration."

"The solution is expensive."

"Commvault has mainly driven the Analytics, providing data and reports. However, the product has room for improvement, especially regarding storage analytics. Upgrading firmware has caused issues, requiring feature disabling to revert to traditional backups. The firmware upgrades sometimes affect Commvault backups."

"Recently, while upgrading the version code, one of the controllers failed. Replacing the controller took between 14 to 20 days."

"To improve FlashBlade, some analysts suggest enhancing its handling of relational database management systems and SQL queries."

More Pure Storage FlashBlade cons

"Dell PowerScale (Isilon) is a bit expensive compared to other products."

"The price always has room for improvement."

"They could improve implementation, as we had to rack and stack it ourselves."

"Sometimes, it takes too long to set up everything. That's something I would want them to improve."

"The UID mapping and how to configure mapping-related things is a struggle."

"Data storage performance needs to be improved."

"If I could improve one thing on Dell PowerScale (Isilon), it would be better object storage as it recently breached into S3, and that capability could be broadened."

"Dell PowerScale (Isilon) could improve the load distribution capability. For example, in some cases, the system load is not distributed automatically on all the nodes but is concentrated only on one. You have a peak request on only one node and the others don't do anything."

More Dell PowerScale (Isilon) cons

"Ceph is not a mature product at this time. Guides are misleading and incomplete. You will meet all kind of bugs and errors trying to install the system for the first time. It requires very experienced personnel to support and keep the system in working condition, and install all necessary packets."

"If troubleshooting is needed, the response should be faster."

"Ceph does not deal very well with, or takes a long time to recover from, certain kinds of network failures and individual storage node failures."

"When it comes to the capabilities of Red Hat Ceph Storage such as object, block, and file storage, I am not fully satisfied."

"While the documentation for Ceph Storage is helpful, it could be improved."

"I have encountered issues with stability when replication factor was not 3, which is the default and recommended value. Go below 3 and problems will arise."

"I have not identified any drawbacks, however, the response to public platform inquiries could be faster."

"Please create a failback solution for OpenStack replication and maybe QoS to allow guaranteed IOPS."

More Red Hat Ceph Storage cons

Pricing and Cost Advice

"I rate the tool's pricing a seven to eight out of ten."

"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."

"The product is very expensive."

"I understand that it is competitively priced compared to other brands."

"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."

"We used a reseller for the purchase."

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

More Pure Storage FlashBlade pricing and cost advice

"The price of the solution is high."

"The solution's licensing cost varies based on capacity and performance requirements."

"The pricing is excellent."

"Pricing for this solution is reasonable."

"Dell PowerScale is an expensive solution compared to other products like Qumulo."

"Dell PowerScale is expensive on the start-up side but we can recoup those costs quickly by not having to reapply the savings to other equipment."

"Our company finds the pricing high, but it decreases over time."

"We use the TNA approach which is a great opportunity for us to better manage the licenses based on how much consumption is available for the different customers so we can use that approach and scalability."

More Dell PowerScale (Isilon) pricing and cost advice

"There is no cost for software."

"Most of time, you can get Ceph with the OpenStack solution in a subscription as a bundle."

"We never used the paid support."

"I rate the product’s pricing an eight out of ten."

"The price of this product isn't high."

"If you can afford a product like Red Hat Ceph Storage then go for it. If you cannot, then you need to test Ceph and get your hands dirty."

"The operational overhead is higher compared to Azure because we own the hardware."

"The other big advantage is that Ceph is free software. Compared to traditional SAN based storage, it is very economical."

More Red Hat Ceph Storage pricing and cost advice

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Top Industries

By visitors reading reviews

Financial Services Firm

11%

Manufacturing Company

10%

Computer Software Company

10%

Government

Computer Software Company

12%

Manufacturing Company

11%

Financial Services Firm

Government

Computer Software Company

17%

Manufacturing Company

11%

Financial Services Firm

Educational Organization

Company Size

By reviewers

Large Enterprise

Midsize Enterprise

Small Business

By reviewers
Company Size	Count
Small Business	11
Midsize Enterprise	11
Large Enterprise	21

By reviewers
Company Size	Count
Small Business	17
Midsize Enterprise	18
Large Enterprise	40

By reviewers
Company Size	Count
Small Business	13
Midsize Enterprise	4
Large Enterprise	15

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...

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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...

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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...

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What do you like most about Dell EMC PowerScale (Isilon)?

The solution provides massive performance, scalability, efficiency, and ease of management.

See all answers

What is your experience regarding pricing and costs for Dell EMC PowerScale (Isilon)?

As for my experience with the pricing, setup cost, and licensing, we have had Dell PowerScale (Isilon) for a while no...

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What needs improvement with Dell EMC PowerScale (Isilon)?

Dell PowerScale (Isilon) can be improved by enhancing the ability for more native data mover technologies that offer ...

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How does Red Hat Ceph Storage compare with MiniO?

Red Hat Ceph does well in simplifying storage integration by replacing the need for numerous storage solutions. This ...

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What do you like most about Red Hat Ceph Storage?

The high availability of the solution is important to us.

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What needs improvement with Red Hat Ceph Storage?

Areas of Red Hat Ceph Storage that have room for improvement include more promotion. Many people do not know about th...

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Comparisons

Pure Storage FlashArray vs Pure Storage FlashBlade

Compared 10% of the time

MinIO vs Pure Storage FlashBlade

Compared 9% of the time

VAST Data vs Pure Storage FlashBlade

Compared 6% of the time

Dell ObjectScale vs Pure Storage FlashBlade

Compared 6% of the time

NetApp StorageGRID vs Pure Storage FlashBlade

Compared 4% of the time

More Pure Storage FlashBlade Competitors

NetApp FAS Series vs Dell PowerScale (Isilon)

Compared 16% of the time

Qumulo vs Dell PowerScale (Isilon)

Compared 7% of the time

Dell ObjectScale vs Dell PowerScale (Isilon)

Compared 6% of the time

HPE StoreEasy vs Dell PowerScale (Isilon)

Compared 5% of the time

MinIO vs Dell PowerScale (Isilon)

Compared 3% of the time

More Dell PowerScale (Isilon) Competitors

MinIO vs Red Hat Ceph Storage

Compared 48% of the time

NetApp StorageGRID vs Red Hat Ceph Storage

Compared 4% of the time

VMware vSAN vs Red Hat Ceph Storage

Compared 4% of the time

Microsoft Storage Spaces Direct vs Red Hat Ceph Storage

Compared 3% of the time

Dell PowerFlex vs Red Hat Ceph Storage

Compared 2% of the time

More Red Hat Ceph Storage Competitors

Product Reports

Buyer's Guide

Pure Storage FlashBlade

December 2025

Download Pure Storage FlashBlade product report

Buyer's Guide

Dell PowerScale (Isilon)

January 2026

Download Dell PowerScale (Isilon) product report

Buyer's Guide

Red Hat Ceph Storage

December 2025

Download Red Hat Ceph Storage product report

Also Known As

No data available

PowerScale, Dell EMC Isilon

Ceph

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

Dell PowerScale leads in unstructured data management with unified file and object storage, massive scalability, security, and cloud adaptability, enhancing AI, analytics, and enterprise applications with exceptional performance and resilience.

Dell PowerScale Isilon provides a comprehensive platform for unstructured data, excelling in scalability, management, and performance. With features like single-pane management, SyncIQ, and SmartQuotas, it handles large datasets with flexibility and robust security. Its multi-protocol support and seamless expansion improve operational efficiency. While it offers strong data protection, enhancements in cloud integration, cybersecurity, and performance are sought. Users note potential for cost reductions and streamlined configurations and mention desired improvements in object storage handling and NFS support.

What are the key features of Dell PowerScale Isilon?

Single-pane management: Simplifies data control and monitoring through a unified interface.
SyncIQ: Ensures efficient data replication for business continuity.
SmartQuotas: Provides intelligent quota management for optimized storage allocation.
Multi-protocol support: Facilitates cross-platform data access and integration.
Seamless storage expansion: Allows effortless scaling to accommodate growing data needs.

What benefits should users consider when reviewing Dell PowerScale Isilon?

Operational efficiency: Reduces workload with easy management and automation.
Enhanced security: Offers comprehensive data protection and recovery options.
Scalability: Supports large-scale data storage with flexible growth capabilities.
Performance: Delivers high-speed data processing for demanding applications.
Integration flexibility: Adapts to on-prem and hybrid cloud environments for diverse deployment needs.

Organizations across industries utilize Dell PowerScale Isilon for large-scale unstructured storage, supporting applications like video archiving, genomic data storage, and high-resolution imaging. Educational institutions, research centers, and media enterprises rely on its scaled-out storage capabilities, providing centralized, secure storage for diverse applications in hybrid, cloud, and on-prem environments.

Dell Technologies

Red Hat Ceph Storage is an enterprise open source platform that provides unified software-defined storage on standard, economical servers and disks. With block, object, and file storage combined into one platform, Red Hat Ceph Storage efficiently and automatically manages all your data.

Red Hat

Sample Customers

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

OMRF, University of Utah, Translational Genetics Research Institute, Arcis, Geofizyka Torumn, Cyprus E&P Corporation, Colburn School, Columbia Sportswear, Harvard Medical School, University of Michigan, National Library of France,

Dell, DreamHost

Buyer's Guide

Dell PowerScale (Isilon) vs. Red Hat Ceph Storage

December 2025

Free Report: Dell PowerScale (Isilon) vs. Red Hat Ceph Storage

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