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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 main feature I have found to be product replication."
"Pure Storage FlashBlade is user-friendly. It's replication feature is great because it has active replication and active DR. That's the beauty of the product. It's a perfect solution for block storage."
"This solution has improved how our organization functions in the way that it has essentially made us not have to think about storage."
"It works quite well for us, and I would recommend it."
"The solution provides many controllers; more controllers lead to higher performance, and it is a unique feature provided by the product that other tools do not have."
"The solution provides many controllers."
"As a Pure Storage platform, the cost-benefit is hugely based on the deduplication and capacity."
"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."
"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."
"Customer service has been really good."
"On a scale of one to ten, with one being worst and ten being best, I would rate Dell PowerScale (Isilon) a ten."
"Dell PowerScale overall is easy to use."
"Based on the flexibility of the system itself, it was easy for us to manage the growth by buying individual nodes as needed."
"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."
"I don't have to rebuild the cluster to add a node."
"The recent introduction of inline deduplication and compression has drastically improved our efficiency ratios to make it an economical product."
"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."
"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."
"The scalability feature is used by all users and is critical for our operations."
"The community support is very good."
"The setup is very easy, deserving a ten out of ten."
"High reliability with commodity hardware There is no cost for software"
"We have not encountered any stability issues for the product."
"The product spawned a new vision of storage deployment, as well as a strong interest in reusing equipment and increasing ROI."
 

Cons

"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."
"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 usually comes down to just what you hit and the value you're getting when you spend the money and license the products."
"There is some room for new features related to authentication and integration with Kubernetes, and other solution using S3 Bucket."
"The speed could be improved."
"The feature that we're waiting on is better integration with the cell services."
"I would like to see more VM-Aware features in the next release of this solution."
"I would like to see more VM-Aware features in the next release of this solution."
"Sometimes, it takes too long to set up everything. That's something I would want them to improve."
"Always, there is room for improvement in terms of cybersecurity, as new challenges are continually emerging in the market."
"I would like to see Dell PowerScale (Isilon) improved by enhancing the user interface, OneFS, to make advanced conversation and troubleshooting more specific, upgrade and batch management, providing deeper built-in analytics for performance and capacity planning."
"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 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."
"Beyond containerized storage support and software updating, I have had very bad experiences with Dell PowerScale (Isilon) because they present more issues than other storage options, even when compared with NetApp."
"We have had issues with internal load balancing between some of the shelves. That is an ongoing issue that support is trying to address."
"The price always has room for improvement."
"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."
"It takes some time to re-balance the storage in case of server failure."
"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."
"When it comes to the capabilities of Red Hat Ceph Storage such as object, block, and file storage, I am not fully satisfied."
"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."
"What could be improved in Red Hat Ceph Storage is its user interface or GUI."
 

Pricing and Cost Advice

"I feel that the price could always be lowered."
"The product is very expensive."
"The price is a little high."
"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 of this solution could be made more affordable."
"We used a reseller for the purchase."
"The price could be cheaper."
"In my opinion, we have paid the right price for the product. I don't think that it is too much or too little."
"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 the solution can fluctuate. The price can be competitive or other times not. The price of the solution could be better."
"The price of Dell PowerScale (Isilon) is reasonable."
"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."
"We paid an additional fee to have Dell's ProDeploy Plus team implement it."
"Pricing for this solution is reasonable."
"Dell PowerScale (Isilon) is an expensive solution."
"It is an expensive product with a high storage capacity suitable for large data requirements."
"I rate the product’s pricing an eight out of ten."
"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."
"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."
"Most of time, you can get Ceph with the OpenStack solution in a subscription​​ as a bundle.​"
"We never used the paid support."
"The operational overhead is higher compared to Azure because we own the hardware."
"The price of Red Hat Ceph Storage is reasonable."
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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
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.
889,855 professionals have used our research since 2012.