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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

"It has absolutely simplified our storage because the dashboards on the consoles show a clear understanding of where you are, and it is also very easy to provision. This been a big help for our teams."
"The tool's most valuable feature is its fast performance, especially in handling snapshots. It helps during power outages when we need to quickly move data between different data centers. It ensures efficient replication and helps maintain our data centers' uptime."
"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."
"It performs well and it is also very fast."
"For those who are interested in using this solution, I would recommend it."
"The most valuable features of FlashBlade include its replication capabilities, reports, and easy allocation. Everything is user-friendly."
"It's very easy-to-use."
"It is very easy to use, and it is very fast."
"There are also the policies that you set up on replication and purging files, and policies for something called WORM. That's a "write once, read many," where you can't overwrite certain files or certain data. It puts them in a "protected mode" where it becomes very difficult for someone to accidentally delete. We use that for certain files or certain directories, because we're dealing with video and some video has to be protected for chain-of-custody purposes. The WORM feature works great."
"My experience with Dell as a vendor is pretty good; they are probably one of the best in the industry."
"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."
"What I like the most about Dell PowerScale (Isilon) is that the storage capacity is very high."
"I can certainly recommend PowerScale for mission-critical workloads, it is a powerful but simple platform with little administration overhead."
"The solution has simplified management by consolidating our workloads. Rather than managing all the different workloads on different storage arrays, Windows Servers, etc., we just have one place per data centre where we manage all their unstructured data, saving us time."
"The features of Dell PowerScale (Isilon) that I appreciate the most include the scale of architecture and the way it is designed, which benefit my company by providing less downtime and less overhead."
"Prior to Isilon, we had to access data from multiple different platforms, and this solution offers unified storage and the ability to consolidate and migrate data, which was a big step forward and allowed us to cut costs by eliminating multiple platforms and putting it all on one array."
"It opens doors for completely open-source cloud."
"We have not encountered any stability issues for the product."
"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."
"Without any extra costs, I was able to provide a redundant environment."
"The solution is pretty stable."
"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."
"It has helped to save money and scale the storage without limits."
"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."
 

Cons

"The solution is expensive."
"We haven't been able to use much of the cloud area of Pure Storage. We have a storage server and it would be better if it could integrate with other cloud features of this solution."
"I would like to see more monitoring capability included in the next release of this solution."
"The documentational aspect of FlashBlade needs improvement."
"I would like to see better integration."
"It usually comes down to just what you hit and the value you're getting when you spend the money and license the products. I would always go, "If you want to make things better, lower your price and make your licensing simpler." There's always an opportunity around that."
"It would be nice if you could store file-based in the same box with the same technology."
"I would like to see better integration."
"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."
"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."
"It would be nice to see tools like Superna Eyeglass built into PowerScale."
"I have experienced a RAM failure in some of the nodes of Dell PowerScale (Isilon), and that required hardware replacement."
"The solution’s interface and pricing could be improved."
"My experience with customer service and technical support has been challenging. The reason is that it is difficult to find subject matter experts around the solution."
"One downside of Dell PowerScale (Isilon) is that it is really complicated to configure."
"Because of the magic that it does 'under the hood,' it is very difficult to find out within the system where all your storage is going."
"An area for improvement would be that it's pretty difficult to manage synchronous replication over multiple regions."
"It needs a better UI for easier installation and management."
"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."
"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."
"Routing around slow hardware."
"While the documentation for Ceph Storage is helpful, it could be improved."
"Geo-replication needs improvement. It is a new feature, and not well supported yet."
"Ceph is not a mature product at this time. Guides are misleading and incomplete."
 

Pricing and Cost Advice

"The pricing is relatively expensive due to the FlashBlade technology. However, for companies needing quick and reliable data access, the cost is justified."
"I feel that the price could always be lowered."
"The product is very expensive."
"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."
"The price of this solution could be made more affordable."
"Licensing fees are paid yearly."
"Our customers have seen a reduction in TCO."
"The price could be cheaper."
"Our company finds the pricing high, but it decreases over time."
"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."
"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."
"Price was also a significant factor in our decision to go with PowerScale. The team at EMC, now Dell EMC, came through with a highly competitive offer that tipped the scales towards their solution. There was only one other solution around the same price point, but it could not match PowerScale on features. That other solution is no longer on the market."
"We paid an additional fee to have Dell's ProDeploy Plus team implement it."
"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."
"Dell PowerScale is an expensive solution compared to other products like Qumulo."
"There is no cost for software."
"Most of time, you can get Ceph with the OpenStack solution in a subscription​​ as a bundle.​"
"The other big advantage is that Ceph is free software. Compared to traditional SAN based storage, it is very economical."
"The price of Red Hat Ceph Storage is reasonable."
"We never used the paid support."
"The price of this product isn't high."
"The operational overhead is higher compared to Azure because we own the hardware."
"I rate the product’s pricing an eight out of ten."
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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.
891,869 professionals have used our research since 2012.