Dell PowerScale (Isilon) vs IBM Cloud Object Storage comparison

Dell PowerScale (Isilon) vs. IBM Cloud Object Storage

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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

Mindshare comparison

As of January 2026, in the File and Object Storage category, the mindshare of Pure Storage FlashBlade is 5.3%, down from 6.0% compared to the previous year. The mindshare of Dell PowerScale (Isilon) is 7.1%, down from 8.4% compared to the previous year. The mindshare of IBM Cloud Object Storage is 1.1%, down from 1.2% compared to the previous year. It is calculated based on PeerSpot user engagement data.

File and Object Storage Market Share Distribution
Product	Market Share (%)
Dell PowerScale (Isilon)	7.1%
Pure Storage FlashBlade	5.3%
IBM Cloud Object Storage	1.1%
Other	86.5%

File and Object Storage

Featured Reviews

MikaelHellström

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.

Read full review

Bill Engelmeyer

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.

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reviewer2384904

Account Technology Specialist at a tech vendor with 10,001+ employees

Enables seamless data replication and supports comprehensive data analytics workflows

The capability to replicate data in different locations is valuable since it enables customers to have a cluster over various sites. Also, important is the capability to provide RESTful APIs for custom connectors. In terms of security, I advise customers to rotate access keys to enhance protection. Additionally, scalability is effortless as you can add nodes or expand the license.

Read full review

Quotes from Members

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

Pros

"It helps simplify our storage, because the user interface is very simple and the installation is easy."

"The ease of deployment and management has helped us simplify our storage. We also do not have to worry about capacity management as much. A lot of these things are native to Pure Storage."

"It performs well and it is also very fast."

"Using this solution has made our backups more reliable."

"The solution provides many controllers."

"The onboarding and integrated monitoring tools are pretty good."

"It's very easy-to-use."

"Among its most appealing features are its ease of handling and minimal maintenance requirements."

More Pure Storage FlashBlade pros

"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."

"The most valuable feature we started using, beyond the initial scope for the solution, is the multi-protocol system that allows you to access the same set of files using different network protocols like NFS or SMB. PowerScale’s Unified Permission Model ensures that data security and access permissions are honoured regardless of whether the client is a Windows desktop or a Linux server"

"On a scale of one to ten, with one being worst and ten being best, I would rate Dell PowerScale (Isilon) a ten."

"Features like ransomware protection, file lock retention, and third-party integrations (e.g., Superna for ransomware protection) are significant benefits."

"PowerScale has made it extremely easy to scale file data across our organization. We have two implementations of Isilon. One is a replica of the other. When scaling, we add nodes to each location and expand the cluster. The process is straightforward."

"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."

"This has been a valuable solution for our business overall. It offers business continuity and replication features."

"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."

More Dell PowerScale (Isilon) pros

"One of Cloud Object Storage's best features is infinite capacity. This is one of the main advantages if you don't want to use your own storage. You also have the ability to write only, write once, and read many. It's like tape storage but software-based. This feature is essential for financial institutions that require that kind of protection if you write backup or data there."

"Overall, I rate IBM Cloud Object Storage a ten out of ten."

"The most valuable feature I like is when you connect it via CLI plug-in...It is a stable solution."

"The capability to replicate data in different locations is valuable since it enables customers to have a cluster over various sites."

"The standout feature of IBM Cloud Object Storage is its top-notch security, making it ideal for sensitive applications like mobile financial transactions."

"IBM Cloud Object Storage integrates well."

"IBM has the most number of additional services, this is the main advantage."

"The integration itself is pretty easy. The access appliances create the connection between both environments."

Cons

"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."

"There could be improvements in public cloud integration."

"In terms of technical support, the experience has been mixed. The support is done through email and is not that great, making it a very problematic area I've been dealing with for over four years."

"I want efficiency. FlashBlade doesn't have efficiency now."

"I would like to see more VM-Aware features in the next release of this solution."

"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."

"In my opinion, one way Pure Storage FlashBlade can be improved is by having more compatibility between the FlashArray and FlashBlade, allowing for synchronized data between both platforms."

"It's on the expensive side, as expected for a niche product."

More Pure Storage FlashBlade cons

"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[...]the Unified Permission Model that would allow a user to authenticate before being able to access a private file, does not apply."

"We see room for improvement in Dell PowerScale (Isilon) because we need personnel to effectively utilize all our infrastructure; it's not easy to find skilled people to work on AI and data analysis."

"We had some issues with level 1 support. We had to fight with them on repeated issues. There is room for improvement in level 1 support."

"It is a bit higher priced than some of the other systems."

"There are some missing features in the product, especially when our company needs to do some tape backup, and we see that the tool doesn't have integration capabilities."

"Dell PowerScale needs to reduce its price."

"Isilon has limitations on the number of files that can be generated."

"The solution isn't suitable for small environments or small customers."

More Dell PowerScale (Isilon) cons

"The performance could be better. It isn't bad, but everything is network-based, so you have a performance penalty on the network. You can never achieve the same performance as hardware. That's the disadvantage of cloud storage solutions in general. Cloud performance is one of the main issues clients have."

"One improvement could be incorporating a feature similar to Dropbox's version history. This would allow users to track modifications made to files over time, which is particularly important for maintaining a record of changes. While the free version might not include this feature, it could be included in the paid version to provide added value to clients. Additionally, having a version history feature that allows users to access modifications made to files over the past three months could be beneficial."

"Sometimes technical support lacks a comprehensive understanding of the entire solution, only focusing on the product they support."

"The performance could improve in IBM Cloud Object Storage. The throughput or objects per second can have degradation."

"If I had to choose one area, it would be making the consoles more intuitive would be helpful. Sometimes, they can be a little complicated if you're not familiar with them."

"IBM has limited cloud storage."

"One area where IBM Cloud Object Storage could potentially improve is in modernizing its underlying codebase."

"IBM Cloud storage is not cheap, but it could be."

More IBM Cloud Object Storage cons

Pricing and Cost Advice

"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."

"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 could be cheaper."

"Our customers have seen a reduction in TCO."

"I understand that it is competitively priced compared to other brands."

"We used a reseller for the purchase."

"The pricing is relatively expensive due to the FlashBlade technology. However, for companies needing quick and reliable data access, the cost is justified."

More Pure Storage FlashBlade pricing and cost advice

"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."

"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."

"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."

"Dell PowerScale is an expensive solution compared to other products like Qumulo."

"The price of the solution is high."

"It's a high-cost offering amounting to three or four million Swedish kronor, or about $400,000 or euros, for approximately 480 terabytes of storage."

"It is a really expensive solution."

More Dell PowerScale (Isilon) pricing and cost advice

"Like most cloud providers, IBM likely charges based on storage capacity, typically per gigabyte or terabyte. Their pricing is competitive when compared to AWS or Microsoft."

"You have the option of a monthly or yearly license. Most customers choose the monthly option. I understand what you would like to say. IBM also lets you choose among four types of Cloud Object Storage. The difference is usage, performance, etc. Of course, high-performance storage is more expensive, while low-performance storage is for cold data, and it's really cheap."

"IBM Cloud is cheaper than AWS. If you want to scale your cloud infrastructure, it can be bought at almost the same price."

"Pricing is not cheap."

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Top Industries

By visitors reading reviews

Financial Services Firm

11%

Manufacturing Company

10%

Computer Software Company

10%

Government

Computer Software Company

12%

Manufacturing Company

11%

Financial Services Firm

Government

Financial Services Firm

26%

Computer Software Company

17%

Manufacturing Company

Government

Company Size

By reviewers

Large Enterprise

Midsize Enterprise

Small Business

By reviewers
Company Size	Count
Small Business	11
Midsize Enterprise	11
Large Enterprise	21

By reviewers
Company Size	Count
Small Business	17
Midsize Enterprise	18
Large Enterprise	39

By reviewers
Company Size	Count
Small Business	3
Midsize Enterprise	2
Large Enterprise	4

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 for my experience with the pricing, setup cost, and licensing, we have had Dell PowerScale (Isilon) for a while no...

What needs improvement with Dell EMC PowerScale (Isilon)?

Dell PowerScale (Isilon) can be improved by enhancing the ability for more native data mover technologies that offer ...

What do you like most about IBM Cloud Object Storage?

The integration itself is pretty easy. The access appliances create the connection between both environments.

What is your experience regarding pricing and costs for IBM Cloud Object Storage?

In general, Object Storage should be a cheaper solution.

What needs improvement with IBM Cloud Object Storage?

The interface can feel clunky and outdated compared to AWS S3 or Azure Blob Storage. While scalable, latency can be...

Pure Storage FlashArray vs Pure Storage FlashBlade

Comparisons

Compared 10% of the time

MinIO vs Pure Storage FlashBlade

Compared 10% of the time

Red Hat Ceph Storage vs Pure Storage FlashBlade

Compared 7% of the time

VAST Data vs Pure Storage FlashBlade

Compared 6% of the time

Dell ObjectScale vs Pure Storage FlashBlade

Compared 6% of the time

More Pure Storage FlashBlade Competitors

NetApp FAS Series vs Dell PowerScale (Isilon)

Compared 16% of the time

Qumulo vs Dell PowerScale (Isilon)

Compared 7% of the time

Dell ObjectScale vs Dell PowerScale (Isilon)

Compared 6% of the time

HPE StoreEasy vs Dell PowerScale (Isilon)

Compared 5% of the time

VAST Data vs Dell PowerScale (Isilon)

Compared 5% of the time

More Dell PowerScale (Isilon) Competitors

MinIO vs IBM Cloud Object Storage

Compared 27% of the time

Dell ObjectScale vs IBM Cloud Object Storage

Compared 20% of the time

Red Hat Ceph Storage vs IBM Cloud Object Storage

Compared 14% of the time

IBM Spectrum Scale vs IBM Cloud Object Storage

Compared 8% of the time

NetApp StorageGRID vs IBM Cloud Object Storage

Compared 6% of the time

More IBM Cloud Object Storage Competitors

Product Reports

Pure Storage FlashBlade

Download Pure Storage FlashBlade product report

Download Dell PowerScale (Isilon) product report

Dell PowerScale (Isilon)

January 2026

IBM Cloud Object Storage

Download IBM Cloud Object Storage product report

Also Known As

No data available

PowerScale, Dell EMC Isilon

Cleversafe

Overview

FlashBlade is the industry’s most advanced scale-out storage for unstructured data, powered by a modern, massively parallel architecture to consolidate complex data silos (like backup appliances and data lakes) and accelerate tomorrow’s discoveries and insights.

Pure Storage

Dell PowerScale leads in unstructured data management with unified file and object storage, massive scalability, security, and cloud adaptability, enhancing AI, analytics, and enterprise applications with exceptional performance and resilience.

Dell PowerScale Isilon provides a comprehensive platform for unstructured data, excelling in scalability, management, and performance. With features like single-pane management, SyncIQ, and SmartQuotas, it handles large datasets with flexibility and robust security. Its multi-protocol support and seamless expansion improve operational efficiency. While it offers strong data protection, enhancements in cloud integration, cybersecurity, and performance are sought. Users note potential for cost reductions and streamlined configurations and mention desired improvements in object storage handling and NFS support.

What are the key features of Dell PowerScale Isilon?

Single-pane management: Simplifies data control and monitoring through a unified interface.
SyncIQ: Ensures efficient data replication for business continuity.
SmartQuotas: Provides intelligent quota management for optimized storage allocation.
Multi-protocol support: Facilitates cross-platform data access and integration.
Seamless storage expansion: Allows effortless scaling to accommodate growing data needs.

What benefits should users consider when reviewing Dell PowerScale Isilon?

Operational efficiency: Reduces workload with easy management and automation.
Enhanced security: Offers comprehensive data protection and recovery options.
Scalability: Supports large-scale data storage with flexible growth capabilities.
Performance: Delivers high-speed data processing for demanding applications.
Integration flexibility: Adapts to on-prem and hybrid cloud environments for diverse deployment needs.

Organizations across industries utilize Dell PowerScale Isilon for large-scale unstructured storage, supporting applications like video archiving, genomic data storage, and high-resolution imaging. Educational institutions, research centers, and media enterprises rely on its scaled-out storage capabilities, providing centralized, secure storage for diverse applications in hybrid, cloud, and on-prem environments.

Dell Technologies

IBM Cloud Object Storage is a web-scale platform that stores unstructured data - from petabyte to exabyte - with reliability, security, availability and disaster recovery without replication.

IBM

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,

Bitly, Dreamstime, Prime Research

Dell PowerScale (Isilon) vs. IBM Cloud Object Storage