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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
6th
Average Rating
8.8
Reviews Sentiment
7.9
Number of Reviews
37
Ranking in other categories
All-Flash Storage (17th)
Dell PowerScale (Isilon)
Ranking in File and Object Storage
3rd
Average Rating
8.8
Reviews Sentiment
7.5
Number of Reviews
55
Ranking in other categories
NAS (1st)
Red Hat Ceph Storage
Ranking in File and Object Storage
2nd
Average Rating
8.2
Reviews Sentiment
6.9
Number of Reviews
25
Ranking in other categories
Software Defined Storage (SDS) (2nd)
 

Mindshare comparison

As of April 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 8.1% compared to the previous year. The mindshare of Red Hat Ceph Storage is 20.3%, down from 22.9% 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.
Eric Burgueño - PeerSpot reviewer
Simplified data management, tremendously reducing our users’ cognitive overhead
The only thing that I think PowerScale could do better is improving the HTTP data access protocol. At the present, you cannot protect access to data via HTTP or HTTPS the same way that you can secure data access through other protocols like NFS or SMB. You can either access a file because it can be access by anyone in the organization, or you cannot at all. There is no in-between. HTTP is not considered a first-class data access protocol, so the Unified Permission Model that would allow a user to authenticate before being able to access a private file, does not apply. However, with the recent introduction of S3 starting from OneFS 9, I believe the necessary plumbing is already there for HTTPS to also be elevated to a first-class protocol in the future because both protocols sit behind a web server under the hood. It does not sound like it would be too complicated to implement, but it would be a valuable feature and it is currently missing.
ANDRE VINICIUS HAMERSKI - PeerSpot reviewer
Offers cost-effective scalability through open-source storage integration
Ceph Storage allows us to add value related to cost and offers a unique experience compared to traditional storage. We appreciate the scalability of the open-source solution, allowing us to address our growing data needs without encountering major issues. Having used it as a pilot system in Brazil, we gained significant knowledge and the ability to manage our infrastructure as code.

Quotes from Members

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

Pros

"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 would rate this solution an eight plus. It has has good flexibility and stability, it's easy to manage and the response time is good."
"FlashBlade offers low latency, high throughput, and seamless scalability."
"The snapshots, replication, and the ability to have immutable blades are the most valuable features. You're putting data snapshots out in those blades, and they cannot be touched. Its performance is great."
"The solution provides many controllers."
"We can capacity plan at a greater level than we used to."
"I would rate Pure Storage FlashBlade a ten out of ten."
"The most valuable features of FlashBlade include its replication capabilities, reports, and easy allocation. Everything is user-friendly."
"The guaranteed performance, combined with the scalability through its scale-out capability, makes it an excellent choice."
"The most valuable feature of Dell PowerScale (Isilon) is all the capabilities together."
"Since it can scale so easily, as long as I have money to buy more nodes, I can grow it as big as I need to. That is important in our business. As sequencing technologies continue to evolve, and as those technologies evolve, the amount of data generation never gets smaller. It just always seems to get bigger. This is one of the absolute key aspects: We can grow on demand without having to forklift stuff."
"The fact that we were able to set it up, use it, and, for the most part, didn't have to worry about it after we had it set up has been valuable."
"It is stable and very user-friendly."
"The solution is extremely easy to manage. This is its most valuable feature."
"Ability to scale the number of nodes without having to build additional clusters."
"Its scalability has been huge for us."
"The solution is pretty stable."
"Ceph has simplified my storage integration. I no longer need two or three storage systems, as Ceph can support all my storage needs. I no longer need OpenStack Swift for REST object storage access, I no longer need NFS or GlusterFS for filesystem sharing, and most importantly, I no longer need LVM or DRBD for my virtual machines in OpenStack."
"Ceph was chosen to maintain exact performance and capacity characteristics for customer cloud."
"I really like that Red Hat Ceph Storage can be used as a total solution without any storage area network components."
"radosgw and librados provide a simple integration with clone, snapshots, and other functions that aid in data integrity."
"The community support is very good."
"Most valuable features include replication and compression."
"Ceph’s ability to adapt to varying types of commodity hardware affords us substantial flexibility and future-proofing."
 

Cons

"I would like to see the licensing fees improved as well as the price per terabytes."
"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 feature that we're waiting on is better integration with the cell services."
"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."
"I would also like to see better support for CIFS workloads."
"The documentational aspect of FlashBlade needs improvement."
"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."
"It would be nice if you could store file-based in the same box with the same technology."
"The improvement should be in AI. Everything is going towards AI."
"It would be good to have synchronized mirroring between two clusters without using a third-party program."
"Data storage performance needs to be improved."
"The support offered by the product is an area of concern where improvements are required."
"Dell's customer service needs improvement. Specifically, hardware failures under warranty should be addressed within the promised timeline."
"The thing that they are working on now, and we are following closely is more native cloud integrations. The way that we envision workloads in the future is around moving compute to data instead of the other way around. So, we would like to have a single pane glass to manage storage across a variety of different platforms, including native cloud. That would be awesome."
"The solution isn't suitable for small environments or small customers."
"Improvements could be made on the object storage side."
"Geo-replication needs improvement. It is a new feature, and not well supported yet."
"It would be nice to have a notification feature whenever an important action is completed."
"Please create a failback solution for OpenStack replication and maybe QoS to allow guaranteed IOPS."
"Routing around slow hardware."
"If troubleshooting is needed, the response should be faster."
"The product lacks RDMA support for inter-OSD communication."
"What could be improved in Red Hat Ceph Storage is its user interface or GUI."
"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. I'm not sure if this is a Ceph problem or if Ceph should address this, but it was something I ran into. Additionally, there is a performance issue I am having that I am looking into, but overall I am satisfied with the performance."
 

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."
"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 could be cheaper."
"Our customers have seen a reduction in TCO."
"The price is a little high."
"In my opinion, we have paid the right price for the product. I don't think that it is too much or too little."
"The price of this solution could be made more affordable."
"The pricing is relatively expensive due to the FlashBlade technology. However, for companies needing quick and reliable data access, the cost is justified."
"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 price of Dell PowerScale (Isilon) is reasonable."
"This solution is priced slightly higher than others on the market but does offer good quality. With this solution's data reduction and compression, we were able to purchase less. Costs have dropped because of the data rate of compression and deduplication."
"It is an expensive product with a high storage capacity suitable for large data requirements."
"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 solution's licensing cost varies based on capacity and performance requirements."
"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."
"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 this product isn't high."
"Most of time, you can get Ceph with the OpenStack solution in a subscription​​ as a bundle.​"
"I rate the product’s pricing an eight out of ten."
"The other big advantage is that Ceph is free software. Compared to traditional SAN based storage, it is very economical."
"There is no cost for software."
"The operational overhead is higher compared to Azure because we own the hardware."
"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."
"We never used the paid support."
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Top Industries

By visitors reading reviews
Educational Organization
37%
Computer Software Company
11%
Financial Services Firm
8%
Manufacturing Company
8%
Educational Organization
23%
Computer Software Company
11%
Financial Services Firm
8%
Manufacturing Company
8%
Computer Software Company
18%
Manufacturing Company
11%
Financial Services Firm
10%
Government
7%
 

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 for FlashBlade is between cheap and moderate. FlashBlade is worth the money due to the experience and per...
What needs improvement with Pure Storage FlashBlade?
Its configuration should be easier. There should be easier language for the configuration.
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)?
Every time we purchase a PowerScale solution, we buy four nodes for one data center and four for another, with five y...
What needs improvement with Dell EMC PowerScale (Isilon)?
Dell's customer service needs improvement. Specifically, hardware failures under warranty should be addressed within ...
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?
I have not identified any drawbacks, however, the response to public platform inquiries could be faster.
 

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: March 2025.
845,040 professionals have used our research since 2012.