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 14.7% 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 February 2026, in the File and Object Storage category, the mindshare of Pure Storage FlashBlade is 5.5%, down from 5.9% compared to the previous year. The mindshare of Dell PowerScale (Isilon) is 7.1%, down from 8.6% compared to the previous year. The mindshare of Red Hat Ceph Storage is 14.7%, down from 21.0% 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	14.7%
Dell PowerScale (Isilon)	7.1%
Pure Storage FlashBlade	5.5%
Other	72.7%

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 feature of this solution is performance."

"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."

"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."

"I would rate Pure Storage FlashBlade a ten out of ten."

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

"We have seen a reduction in the total cost of ownership by around 20%."

"The tool's most valuable features are data warehousing, speedy recovery, and analytics. Its latest release is cost-effective."

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

More Pure Storage FlashBlade pros

"The features that I have mentioned improve my company through the reliability of the storage; it is always available, and it works, which is the important thing."

"The solution's scalability is very good."

"Dell PowerScale helps in saving costs related to power and rack space, reducing physical hardware from over one hundred to twenty-nine chassis."

"This has been a valuable solution for our business overall. It offers business continuity and replication features."

"The most valuable feature we started using, beyond the initial scope for the solution, is the multi-protocol system that allows you to access the same set of files using different network protocols like NFS or SMB. PowerScale’s Unified Permission Model ensures that data security and access permissions are honoured regardless of whether the client is a Windows desktop or a Linux server"

"Our main goal is to do disaster recovery with whatever solution we use and Isilon makes it pretty simple to replicate those workloads over to our secondary data center."

"The most valuable feature for me is SyncIQ."

"The most valuable feature is its single space of storage."

More Dell PowerScale (Isilon) pros

"I would definitely recommend Red Hat Ceph Storage. It is a complete solution for cloud-native storage needs."

"The setup is very easy, deserving a ten out of ten."

"Data redundancy is a key feature, since it can survive failures (disks/servers). We didn’t lose our data or have a service interruption during server/disk failures."

"It's a very performance-intensive, brilliant storage system, and I always recommend it to customers based on its benefits, performance, and scalability."

"The community support is very good."

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

"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."

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

More Red Hat Ceph Storage pros

Cons

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

"An area for improvement in Pure Storage FlashBlade is its price. It could be reduced. The technical support for Pure Storage FlashBlade also needs improvement. It used to be good, with more experienced engineers. Nowadays, it isn't, and it takes longer for support to solve problems."

"They need better integration with public clouds along with a better hybrid solution."

"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."

"I would like to have Snapshots and Snapmail in the next release. People who came from a NetApp background, especially expect these features."

"The technical support needs to improve. When we open a case, it is auto assigned to a support tech person. Nine out of ten times, we get an email right back saying that person is off until tomorrow. I cannot handle that. They just did this over the weekend to us, too. I had to call our rep and have them do something about it."

"File storage needs a lot of improvement. Mainframe connectivity also needs improvement because it requires additional components to be integrated with Pure Storage FlashBlade. If you want to keep your backup data, then this becomes an even more expensive solution because Pure Storage FlashBlade will not be able to meet your backup needs."

"It's on the expensive side, as expected for a niche product."

More Pure Storage FlashBlade cons

"There is room for improvement with the updates. It can take a significant amount of time to do a major OS update. However, even though it takes multiple reboots, the cluster stays up. If we want to apply a newer version of the OS, we have to roll back some of the patches so that we can upgrade. It requires a few reboots just to do that. The cluster doesn't come down, everything is still running, but it's time-consuming, at times."

"The thing that they are working on now, and we are following closely is more native cloud integrations. The way that we envision workloads in the future is around moving compute to data instead of the other way around. So, we would like to have a single pane glass to manage storage across a variety of different platforms, including native cloud. That would be awesome."

"Perhaps if there was a local chatbot built within the system or on the dashboard where we could directly ask for anything on the OneFS, it could help us."

"The product itself is capable of very much, but the initial deployment experience can be lacking possibly because it does not incorporate any design phase."

"The solution's rate structure or rate redundancy needs to be improved."

"We had some issues with level 1 support. We had to fight with them on repeated issues. There is room for improvement in level 1 support."

"We have issues in Brazil with the procurement of solutions because we have to check the entire market and justify the pricing to our audit institutions, making it difficult to keep with the same vendor."

"The solution isn't suitable for small environments or small customers."

More Dell PowerScale (Isilon) cons

"It would be nice to have a notification feature whenever an important action is completed."

"This product uses a lot of CPU and network bandwidth. It needs some deduplication features and to use delta for rebalancing."

"It needs a better UI for easier installation and management."

"Routing around slow hardware."

"The management features are pretty good, but they still have room for improvement."

"It took me a long time to get the storage drivers for the communication with Kubernetes up and running. The documentation could improve it is lacking information. I'm not sure if this is a Ceph problem or if Ceph should address this, but it was something I ran into. Additionally, there is a performance issue I am having that I am looking into, but overall I am satisfied with the performance."

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

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

More Red Hat Ceph Storage cons

Pricing and Cost Advice

"The price could be cheaper."

"Our customers have seen a reduction in TCO."

"I have seen ROI. It has allowed me to increase the density of my VMs without having to purchase anything additional."

"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."

"I feel that the price could always be lowered."

"The price of this solution could be made more affordable."

"The product is very expensive."

"The pricing is relatively expensive due to the FlashBlade technology. However, for companies needing quick and reliable data access, the cost is justified."

More Pure Storage FlashBlade pricing and cost advice

"It is an expensive product with a high storage capacity suitable for large data requirements."

"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."

"The price of Dell PowerScale (Isilon) is reasonable."

"Dell PowerScale (Isilon) is an expensive solution."

"The pricing for this solution is reasonable."

"We paid an additional fee to have Dell's ProDeploy Plus team implement it."

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

"The platform is not cheap. However, on the software side, you can choose what you want license. So, you can start your licensing with the features that you need, then after buying the platform add some other features."

More Dell PowerScale (Isilon) pricing and cost advice

"We never used the paid support."

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

"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."

"There is no cost for software."

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

"The price of Red Hat Ceph Storage is reasonable."

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

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

More Red Hat Ceph Storage pricing and cost advice

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Top Industries

By visitors reading reviews

Financial Services Firm

12%

Manufacturing Company

10%

Computer Software Company

10%

Government

Computer Software Company

11%

Manufacturing Company

11%

Financial Services Firm

Government

Computer Software Company

14%

Manufacturing Company

11%

Financial Services Firm

Comms Service Provider

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	20
Large Enterprise	43

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)?

Regarding pricing, Isilon can be cost-efficient; if you are using more capacity nodes without needing more performanc...

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What needs improvement with Dell EMC PowerScale (Isilon)?

One downside of Dell PowerScale (Isilon) is that it is really complicated to configure. It is not something you can j...

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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.

See all answers

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

MinIO vs Pure Storage FlashBlade

Compared 9% of the time

Pure Storage FlashArray vs Pure Storage FlashBlade

Compared 8% of the time

VAST Data vs Pure Storage FlashBlade

Compared 7% 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

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NetApp FAS Series vs Dell PowerScale (Isilon)

Compared 20% of the time

Qumulo vs Dell PowerScale (Isilon)

Compared 6% of the time

Dell ObjectScale vs Dell PowerScale (Isilon)

Compared 5% of the time

VAST Data vs Dell PowerScale (Isilon)

Compared 4% of the time

Dell PowerStore vs Dell PowerScale (Isilon)

Compared 3% of the time

More Dell PowerScale (Isilon) Competitors

MinIO vs Red Hat Ceph Storage

Compared 50% of the time

NetApp StorageGRID vs Red Hat Ceph Storage

Compared 3% of the time

VMware vSAN vs Red Hat Ceph Storage

Compared 3% of the time

Microsoft Storage Spaces Direct vs Red Hat Ceph Storage

Compared 3% of the time

Nutanix Unified Storage (NUS) vs Red Hat Ceph Storage

Compared 2% of the time

More Red Hat Ceph Storage Competitors

Product Reports

Buyer's Guide

Pure Storage FlashBlade

January 2026

Download Pure Storage FlashBlade product report

Buyer's Guide

Dell PowerScale (Isilon)

February 2026

Download Dell PowerScale (Isilon) product report

Buyer's Guide

Red Hat Ceph Storage

January 2026

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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