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Dell PowerScale (Isilon) vs Red Hat Ceph Storage comparison

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Comparison Buyer's Guide

Executive SummaryUpdated on Nov 4, 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

Pure Storage FlashBlade
Sponsored
Ranking in File and Object Storage
8th
Average Rating
8.8
Reviews Sentiment
7.8
Number of Reviews
38
Ranking in other categories
All-Flash Storage (15th), Software Defined Storage (SDS) (8th)
Dell PowerScale (Isilon)
Ranking in File and Object Storage
2nd
Average Rating
9.0
Reviews Sentiment
7.4
Number of Reviews
66
Ranking in other categories
NAS (2nd)
Red Hat Ceph Storage
Ranking in File and Object Storage
1st
Average Rating
8.4
Reviews Sentiment
6.9
Number of Reviews
27
Ranking in other categories
Software Defined Storage (SDS) (2nd)
 

Mindshare comparison

As of August 2025, in the File and Object Storage category, the mindshare of Pure Storage FlashBlade is 5.8%, down from 6.3% compared to the previous year. The mindshare of Dell PowerScale (Isilon) is 8.8%, up from 8.2% compared to the previous year. The mindshare of Red Hat Ceph Storage is 17.8%, down from 22.4% compared to the previous year. It is calculated based on PeerSpot user engagement data.
File and Object Storage
 

Featured Reviews

Eric Black - PeerSpot reviewer
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.
Scott Taylor - PeerSpot reviewer
Manages large data sets efficiently with hybrid cloud integration
My organization is quite large, with about 30,000 employees. The growth has been substantial in areas such as radiology and genomics. One of the best features we've utilized recently is offload to cloud pools due to capacity constraints on-premise. We didn't want to expand Dell PowerScale (Isilon) straight away, so we utilized cloud pools to offload some data to Azure. That's really saved us in certain areas as we didn't have funding to expand Dell PowerScale (Isilon) until next year, which is why we utilized the cloud pools functionality to offload.
Rifat Rahman - PeerSpot reviewer
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.

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."
"The most valuable feature of this solution is performance."
"Speed and ease of use are the two most valuable features."
"The initial setup is pretty quick."
"The tool's most valuable features are data warehousing, speedy recovery, and analytics. Its latest release is cost-effective."
"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."
"We can capacity plan at a greater level than we used to."
"Among its most appealing features are its ease of handling and minimal maintenance requirements."
"Dell PowerScale (Isilon) is a platform that is very easy for teams to work with."
"It has allowed us to have more consistent quality controls. It has also allowed us to expand the number of servers in clients processing and accessing data, allowing us to get a lot bigger projects out the door."
"The solution provides massive performance, scalability, efficiency, and ease of management."
"Dell PowerScale has the SmartConnect and SmartConnect Pro features. That's why I like the product."
"The solution's scalability is very good."
"I rate Dell PowerScale (Isilon) a ten out of ten, and we continue to keep buying it."
"The solution is stable."
"PowerScale has made it extremely easy to scale file data across our organization. We have two implementations of Isilon. One is a replica of the other. When scaling, we add nodes to each location and expand the cluster. The process is straightforward."
"Most valuable features include replication and compression."
"We have some legacy servers that can be associated with this structure. With Ceph, we can rearrange these machines and reuse our investment."
"Ceph’s ability to adapt to varying types of commodity hardware affords us substantial flexibility and future-proofing."
"Red Hat Ceph Storage is a reliable solution, it works well."
"It's a very performance-intensive, brilliant storage system, and I always recommend it to customers based on its benefits, performance, and scalability."
"Without any extra costs, I was able to provide a redundant environment."
"I like the distributed and self-healing nature of the product."
"What I found most valuable from Red Hat Ceph Storage is integration because if you are talking about a solution that consists purely of Red Hat products, this is where integration benefits come in. In particular, Red Hat Ceph Storage becomes a single solution for managing the entire environment in terms of the container or the infrastructure, or the worker nodes because it all comes from a single plug."
 

Cons

"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."
"I would like to see more monitoring capability included in the next release of this solution."
"It would be beneficial if the layer could support the S3 protocol and be container ready in the next release."
"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 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."
"I would like to see more deduplication."
"I would like to have Snapshots and Snapmail in the next release. People who came from a NetApp background, especially expect these features."
"To improve FlashBlade, some analysts suggest enhancing its handling of relational database management systems and SQL queries."
"Additional metadata reporting would be great. We have to use a separate tool to report on that. We would like to view the age of data and how long it has been since someone has accessed a file."
"Improvements could be made on the object storage side."
"Improvements could be made to reduce the costs and the high level of knowledge needed to maintain and use them. We had old hard drives with moving parts in Dell PowerScale, and due to this, we must switch to a more efficient environment with all-flash."
"We lost our technical sales reps about two years ago. We haven't gotten one assigned to us and we'd love to have one."
"The management and monitoring tools comprise a disparate suite of products and the roadmap is very unclear. We've got four different products that look after the Isilon, management-wise, and it's a bit of a mess."
"The tool's support team and the way the cases are handled by the product's technical support team are both areas of concern where improvements are required."
"The solution can be a bit complex for those not well versed in the technology."
"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."
"What could be improved in Red Hat Ceph Storage is its user interface or GUI."
"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."
"Please create a failback solution for OpenStack replication and maybe QoS to allow guaranteed IOPS."
"The storage capacity of the solution can be improved."
"We have encountered slight integration issues."
"In the deployment step, we need to create some config files to add Ceph functions in OpenStack modules (Nova, Cinder, Glance). It would be useful to have a tool that validates the format of the data in those files, before generating a deploy with failures."
"While the documentation for Ceph Storage is helpful, it could be improved."
"It needs a better UI for easier installation and management."
 

Pricing and Cost Advice

"In my opinion, we have paid the right price for the product. I don't think that it is too much or too little."
"It's a costly solution, but Pure Storage FlashBlade doesn't require additional licenses. All of the software is combined into one bundle."
"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."
"Support is a separate line item. Support is a different cost, but whatever your support is now, that's what you're going to pay forever. If your support's $100 today, six years from now it's $100. It doesn't fluctuate unless you upgrade it, or change it, etc."
"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 pricing for FlashBlade is between cheap and moderate."
"It's a high-cost offering amounting to three or four million Swedish kronor, or about $400,000 or euros, for approximately 480 terabytes of storage."
"We paid an additional fee to have Dell's ProDeploy Plus team implement it."
"The pricing is excellent."
"Our company finds the pricing high, but it decreases over time."
"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 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."
"The only drawback for us is that it's a large upfront investment. This was a huge decision for a startup company to make. It took a bit for us to get over the line on it, but we have not regretted it."
"I always want things to be less expensive. However, I would say the pricing is fair. Their costs are in alignment with their competitors. It is a good value for the money."
"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."
"The price of this product isn't high."
"I rate the product’s pricing an eight out of ten."
"We never used the paid support."
"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."
"Most of time, you can get Ceph with the OpenStack solution in a subscription​​ as a bundle.​"
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Top Industries

By visitors reading reviews
Computer Software Company
13%
Financial Services Firm
12%
Manufacturing Company
10%
Government
7%
Computer Software Company
13%
Manufacturing Company
11%
Financial Services Firm
9%
Healthcare Company
8%
Computer Software Company
18%
Manufacturing Company
11%
Financial Services Firm
8%
Comms Service Provider
6%
 

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...
What is your experience regarding pricing and costs for Pure Storage FlashBlade?
The pricing of Pure Storage FlashBlade is expensive compared to other products I used from other companies in the pas...
What needs improvement with Pure Storage FlashBlade?
I believe there is not much improvement needed because they have everything we need, but the interface is a little bi...
What do you like most about Dell EMC PowerScale (Isilon)?
The solution provides massive performance, scalability, efficiency, and ease of management.
What is your experience regarding pricing and costs for Dell EMC PowerScale (Isilon)?
It's considered between mid and high-end regarding. Dell usually knows how to position each model. If the customer wa...
What needs improvement with Dell EMC PowerScale (Isilon)?
With every iteration of the OneFS system, new features are being added, and the UI is being updated here and there. S...
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 ...
What do you like most about Red Hat Ceph Storage?
The high availability of the solution is important to us.
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...
 

Also Known As

No data available
PowerScale, Dell EMC Isilon
Ceph
 

Overview

 

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
Find out what your peers are saying about Dell PowerScale (Isilon) vs. Red Hat Ceph Storage and other solutions. Updated: July 2025.
865,295 professionals have used our research since 2012.