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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

"The solution provides many controllers."
"The initial setup is pretty quick."
"It has also helped to simplify storage for us in the way that it's easy to manage. Their automatic monitoring really helps when things break or are about to break. They see a problem coming and alert us even before our own system does."
"We can capacity plan at a greater level than we used to."
"The most valuable features of FlashBlade include its replication capabilities, reports, and easy allocation. Everything is user-friendly."
"The solution is able to handle workloads and is easy to use. It allows us to actually manage the boxes in less time."
"It improves our organization by making the management much easier to access and not as time consuming, and it has made the management easy and simple."
"It has good flexibility and stability, it's easy to manage and the response time is good."
"Dell PowerScale (Isilon) is a platform that is very easy for teams to work with."
"Our users are able to easily roll back snapshots without going through IT."
"This has been a valuable solution for our business overall. It offers business continuity and replication features."
"Dell PowerScale (Isilon) is scalable, it is easy to expand capacity, and the solution is suitable for companies with a lot of data."
"The most valuable feature of Dell PowerScale (Isilon) is all the capabilities together."
"The solution is extremely easy to manage. This is its most valuable feature."
"Customer service has been really 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."
"We have not encountered any stability issues for the product."
"Ceph’s ability to adapt to varying types of commodity hardware affords us substantial flexibility and future-proofing."
"The setup is very easy, deserving a ten out of ten."
"We have some legacy servers that can be associated with this structure. With Ceph, we can rearrange these machines and reuse our investment."
"I like the distributed and self-healing nature of the product."
"It opens doors for completely open-source cloud."
"Red Hat Ceph Storage is a reliable solution, it works well."
"Companies that can afford completely flash-based pipe servers should go for Ceph because it's a very performance-intensive, brilliant storage system, and I always recommend it to customers based on its benefits, performance, and scalability."
 

Cons

"The technical support needs to improve. When we open a case, it is auto assigned to a support tech person, and nine out of ten times, we get an email right back saying that person is off until tomorrow."
"I would like to see more VM-Aware features in the next release of this solution."
"I have not seen ROI."
"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 see more deduplication."
"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."
"I would like to have Snapshots and Snapmail in the next release."
"In the past year, it hasn't been as great. They seem to just follow KBS."
"The replication could lend itself to some improvement around encryption in transit and managing the racing of large volumes of data. The process of file over and file back can be tedious. Hopefully, you never end up going into a DR. If you do go into a DR, you know the data is there on the remote site. However, in terms of the process of setting up the replicates and filing them back, that is just very tedious and could definitely do with some improvement."
"The solution can be integrated with an automation system. Dell uses another framework developed in-house. They can integrate it with machines."
"I think Dell PowerScale (Isilon) can be improved, as the cost models are quite expensive for administration."
"Data storage performance needs to be improved."
"Technical support could be improved. Whenever we have a hiccup, we'd like to get it fixed maybe quicker."
"Pricing is an issue. It's quite expensive for the amount of storage we have."
"It would be good to have synchronized mirroring between two clusters without using a third-party program."
"Ceph is not a mature product at this time. Guides are misleading and incomplete."
"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."
"Ceph Storage lacks RDMA support for inter-OSD communication. That is a huge loss in terms of performance."
"We have encountered slight integration issues."
"The product lacks RDMA support for inter-OSD communication."
"It would be nice to have a notification feature whenever an important action is completed."
"While the documentation for Ceph Storage is helpful, it could be improved."
"What could be improved in Red Hat Ceph Storage is its user interface or GUI."
 

Pricing and Cost Advice

"It's a costly solution, but Pure Storage FlashBlade doesn't require additional licenses. All of the software is combined into one bundle."
"I understand that it is competitively priced compared to other brands."
"Our licensing is renewed annually."
"Licensing fees are paid yearly."
"Our customers have seen a reduction in TCO."
"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."
"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."
"I have seen ROI. It has allowed me to increase the density of my VMs without having to purchase anything additional."
"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 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."
"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."
"Pricing for this solution is reasonable."
"It is an expensive product with a high storage capacity suitable for large data requirements."
"Dealing with the product costs and licensing areas is getting easier since Dell is simplifying the licensing process and licensing packages offered to users."
"The solution's licensing cost varies based on capacity and performance requirements."
"The pricing is expensive, but I think it's a fair value because it does manage itself. It definitely is much simpler than any of the other scale-out storage platforms that we've looked at in the past."
"There is no cost for software."
"The other big advantage is that Ceph is free software. Compared to traditional SAN based storage, it is very economical."
"We never used the paid support."
"I rate the product’s pricing an eight out of ten."
"Most of time, you can get Ceph with the OpenStack solution in a subscription​​ as a bundle.​"
"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 operational overhead is higher compared to Azure because we own the hardware."
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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
10%
Financial Services Firm
9%
Government
8%
Computer Software Company
13%
Manufacturing Company
11%
Financial Services Firm
8%
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 Enterprise45
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: March 2026.
886,858 professionals have used our research since 2012.