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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

Everpure FlashBlade
Sponsored
Ranking in File and Object Storage
8th
Average Rating
8.8
Reviews Sentiment
7.5
Number of Reviews
39
Ranking in other categories
All-Flash Storage (14th), Software Defined Storage (SDS) (9th)
Dell PowerScale (Isilon)
Ranking in File and Object Storage
2nd
Average Rating
8.8
Reviews Sentiment
7.0
Number of Reviews
81
Ranking in other categories
NAS (1st)
Red Hat Ceph Storage
Ranking in File and Object Storage
1st
Average Rating
8.2
Reviews Sentiment
6.7
Number of Reviews
27
Ranking in other categories
Software Defined Storage (SDS) (3rd)
 

Mindshare comparison

As of April 2026, in the File and Object Storage category, the mindshare of Everpure FlashBlade is 5.7%, down from 5.7% compared to the previous year. The mindshare of Dell PowerScale (Isilon) is 6.5%, down from 8.8% compared to the previous year. The mindshare of Red Hat Ceph Storage is 13.2%, down from 20.3% compared to the previous year. It is calculated based on PeerSpot user engagement data.
File and Object Storage Mindshare Distribution
ProductMindshare (%)
Red Hat Ceph Storage13.2%
Dell PowerScale (Isilon)6.5%
Everpure FlashBlade5.7%
Other74.6%
File and Object Storage
 

Featured Reviews

MikaelHellström - PeerSpot reviewer
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.
BE
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.
Rifat Rahman - PeerSpot reviewer
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.

Quotes from Members

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

Pros

"We chose Pure because we like their support model and we like their performance."
"The product is fantastic."
"This solution has improved how our organization functions in the way that it has essentially made us not have to think about storage."
"I love this solution."
"The initial setup is pretty easy and simple."
"The fact that the solution is extremely stable and it works really great each dollar spent on this solution is worth it."
"The onboarding and integrated monitoring tools are pretty good."
"From the customer's perspective, this is the easiest product that I've tested, it's seamless."
"The reliability and stability of Dell PowerScale (Isilon) is good, with no downtime."
"The solution has simplified management by consolidating our workloads, and rather than managing all the different workloads on different storage arrays and Windows Servers, we just have one place per data centre where we manage all their unstructured data, saving us time."
"Overall, the hardware itself, and the OneFS file system, are the best selling points, combined with the delivery and the installation."
"The features of Dell PowerScale (Isilon) that I prefer the most include some of the newer technologies that are on it, which would include SmartSync and the ability for the data mover to continue to make incremental changes."
"The solution allows me to use SSMDS to store data for end users and share it within different locations."
"Overall, Dell PowerScale (Isilon) has made the management of the data and networks easier."
"Regarding stability, I find no lagging, crashing, or downtime with Dell PowerScale (Isilon), and it is a highly scalable, stable, and reliable solution that I have experienced."
"The recent introduction of inline deduplication and compression has drastically improved our efficiency ratios to make it an economical product."
"The ability to provide block storage and object storage from the same storage cluster is very valuable for us."
"Ceph Storage allows us to add value related to cost and offers a unique experience compared to traditional storage."
"The setup is very easy, deserving a ten out of ten."
"Ceph Storage allows us to add value related to cost and offers a unique experience compared to traditional storage."
"Red Hat Ceph Storage is a reliable solution, it works well."
"We are using Ceph internal inexpensive disk and data redundancy without spending extra money on external storage."
"Data redundancy is a key feature, since it can survive failures (disks/servers) and we didn’t lose our data or have a service interruption during server or disk failures."
"It has helped to save money and scale the storage without limits."
 

Cons

"Its configuration should be easier."
"On our dedupe during our initial buy, we were expecting a number a little higher like 4x. However, we are getting about 3.6. While it is close enough, it doesn't quite hit the numbers. So, this has been a challenge."
"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."
"It would be beneficial if the layer could support the S3 protocol and be container ready in the next release."
"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."
"The features provided for SMB customers are limited."
"The integration with S3 needs some improvement."
"Its configuration should be easier."
"Isilon has limitations on the number of files that can be generated."
"Isilon has limitations on the number of files that can be generated."
"It would be nice to see tools like Superna Eyeglass built into PowerScale."
"There aren't many templates still coming out for it. They need to provide templates so we can copy and paste what we've done in the past to future, new things."
"If they integrated some functions, as they have on Data Domain with a cyber recovery vault, it would be ideal."
"The price always has room for improvement."
"I have experienced a RAM failure in some of the nodes of Dell PowerScale (Isilon), and that required hardware replacement."
"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."
"I've heard the integration with OpenShift is great, however, the licensing cost is excessively high."
"Ceph Storage lacks RDMA support for inter-OSD communication. That is a huge loss in terms of performance."
"This product uses a lot of CPU and network bandwidth."
"It takes some time to re-balance the storage in case of server failure."
"Areas of Red Hat Ceph Storage that have room for improvement include more promotion. Many people do not know about the Stratus case, which is one of the most reliable systems available in the world, but they are not aware that a system can keep working even if there is a hardware failure."
"Some documentation is very hard to find."
"While the documentation for Ceph Storage is helpful, it could be improved."
"An area for improvement would be that it's pretty difficult to manage synchronous replication over multiple regions."
 

Pricing and Cost Advice

"The price could be cheaper."
"The product is very expensive."
"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."
"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."
"The price is a little high."
"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."
"Our customers have seen a reduction in TCO."
"The pricing for this solution is reasonable."
"It is an expensive product with a high storage capacity suitable for large data requirements."
"Pricing for this solution is reasonable."
"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 general cost for a system like this is expensive. The total cost depends on your use case. You need to pay for every additional feature that you use."
"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."
"The price of Dell PowerScale (Isilon) is reasonable."
"The solution is expensive; it is not the cheapest solution out there. If you look at it from a total cost of ownership perspective, then it is a very compelling solution. However, if you're looking at just dollar per terabyte and not looking at the big picture, then you could be distracted by the price. It is not an amazing price, but it's pretty good. It is also very good when you consider the total cost of ownership and ease of management."
"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 price of Red Hat Ceph Storage is reasonable."
"The price of this product isn't high."
"The other big advantage is that Ceph is free software. Compared to traditional SAN based storage, it is very economical."
"I rate the product’s pricing an eight out of ten."
"There is no cost for software."
"The operational overhead is higher compared to Azure because we own the hardware."
"We never used the paid support."
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Top Industries

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

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business11
Midsize Enterprise11
Large Enterprise21
By reviewers
Company SizeCount
Small Business19
Midsize Enterprise20
Large Enterprise46
By reviewers
Company SizeCount
Small Business13
Midsize Enterprise4
Large Enterprise15
 

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?
Regarding pricing, it is okay; we needed exactly this in size, and the price was a lot lower than competitors, making...
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...
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)?
As I mentioned before, we did not purchase Dell PowerScale (Isilon) directly. Since our organization is a government ...
What needs improvement with Dell EMC PowerScale (Isilon)?
I have experienced a RAM failure in some of the nodes of Dell PowerScale (Isilon), and that required hardware replace...
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

Pure Storage FlashBlade
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: April 2026.
889,955 professionals have used our research since 2012.