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 February 2026, in the File and Object Storage category, the mindshare of Pure Storage FlashBlade is 5.5%, down from 5.9% compared to the previous year. The mindshare of Dell PowerScale (Isilon) is 7.1%, down from 8.6% compared to the previous year. The mindshare of IBM Cloud Object Storage is 1.2%, up 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	5.5%
IBM Cloud Object Storage	1.2%
Other	86.2%

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.

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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.

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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 features are data warehousing, speedy recovery, and analytics. Its latest release is cost-effective."

"It is very easy to use, and it is very fast."

"Approximately 40% to 50% of my time is saved using Pure Storage FlashBlade compared to different products."

"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."

"FlashBlade offers low latency, high throughput, and seamless scalability."

"The product is scalable and easy to expand."

"The most valuable feature is Safe Mode."

"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."

More Pure Storage FlashBlade pros

"It assists with eliminating storage silos because it provides SMB and NFS protocols. PowerScale has also helped free up our employee's time to focus on other business priorities."

"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."

"I rate Dell PowerScale (Isilon) a ten out of ten, and we continue to keep buying it."

"PowerScale allows us to manage storage without managing RAID groups or migrating volumes between controllers. It has really simplified things. We're not having to worry about the underlying infrastructure. That takes care of itself. We just worry about the data. It's really easy for deploying and managing storage at the petabyte scale."

"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 single pane of glass for both IT and for the end-user is a valuable feature. On the IT side, I can actually control where things are stored, whether something is stored on solid-state drives or spinning drives... The single pane of glass makes it very easy to use and very easy to understand. We started at 100 terabytes and we moved to 250 and it still feels like the exact same system and we're able to move data as needed."

"The solution allows me to use SSMDS to store data for end users and share it within different locations."

"It is stable and very user-friendly."

More Dell PowerScale (Isilon) pros

"IBM Cloud Object Storage integrates well."

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

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

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

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

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

Cons

"The documentational aspect of FlashBlade needs improvement."

"There could be improvements in public cloud integration."

"To improve FlashBlade, some analysts suggest enhancing its handling of relational database management systems and SQL queries."

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

"I would like to have Snapshots and Snapmail in the next release. People who came from a NetApp background, especially expect these features."

"The solution is expensive."

"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."

"The speed could be improved."

More Pure Storage FlashBlade cons

"The solution can be a bit complex for those not well versed in the technology."

"I would like to see increased reporting and statistics functionalities."

"It would be good to have synchronized mirroring between two clusters without using a third-party program."

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

"The improvement should be in AI. Everything is going towards AI."

"Always, there is room for improvement in terms of cybersecurity, as new challenges are continually emerging in the market."

"The downside of Dell PowerScale (Isilon) is that if we are replacing a drive, sometimes in the worst-case scenarios, some of the other drives will also go to the SmartFail state."

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

More Dell PowerScale (Isilon) cons

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

"Room for improvement depends on customer needs. Some customers prefer pure Object Storage using the S3 protocol, while others use a gateway in front of the storage grid to enable CIFS or NFS."

"IBM has limited cloud storage."

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

"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."

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

"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."

"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."

More IBM Cloud Object Storage cons

Pricing and Cost Advice

"The price of this solution could be made more affordable."

"It's a costly solution, but Pure Storage FlashBlade doesn't require additional licenses. All of the software is combined into one bundle."

"The product is very expensive."

"The pricing for FlashBlade is between cheap and moderate."

"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."

"Our licensing is renewed annually."

"Licensing fees are paid yearly."

"I feel that the price could always be lowered."

More Pure Storage FlashBlade pricing and cost advice

"The solution's licensing cost varies based on capacity and performance requirements."

"The price of Dell PowerScale (Isilon) is reasonable."

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

"It is an expensive product with a high storage capacity suitable for large data requirements."

"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 is high."

"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."

"Dell PowerScale (Isilon) is an expensive solution."

More Dell PowerScale (Isilon) pricing and cost advice

"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."

"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."

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Top Industries

By visitors reading reviews

Financial Services Firm

12%

Manufacturing Company

10%

Computer Software Company

Government

Computer Software Company

11%

Manufacturing Company

11%

Financial Services Firm

Healthcare Company

Financial Services Firm

25%

Computer Software Company

16%

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	20
Large Enterprise	43

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)?

Regarding pricing, Isilon can be cost-efficient; if you are using more capacity nodes without needing more performanc...

What needs improvement with Dell EMC PowerScale (Isilon)?

One downside of Dell PowerScale (Isilon) is that it is really complicated to configure. It is not something you can j...

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...

MinIO vs Pure Storage FlashBlade

Comparisons

Compared 9% of the time

VAST Data vs Pure Storage FlashBlade

Compared 8% of the time

Pure Storage FlashArray vs Pure Storage FlashBlade

Compared 8% of the time

Dell ObjectScale vs Pure Storage FlashBlade

Compared 6% of the time

Red Hat Ceph Storage vs Pure Storage FlashBlade

Compared 6% of the time

More Pure Storage FlashBlade Competitors

NetApp FAS Series vs Dell PowerScale (Isilon)

Compared 20% of the time

Qumulo vs Dell PowerScale (Isilon)

Compared 6% of the time

Dell ObjectScale vs Dell PowerScale (Isilon)

Compared 5% of the time

VAST Data vs Dell PowerScale (Isilon)

Compared 4% of the time

HPE StoreEasy vs Dell PowerScale (Isilon)

Compared 4% of the time

More Dell PowerScale (Isilon) Competitors

MinIO vs IBM Cloud Object Storage

Compared 18% of the time

Dell ObjectScale vs IBM Cloud Object Storage

Compared 16% of the time

Red Hat Ceph Storage vs IBM Cloud Object Storage

Compared 12% of the time

IBM Spectrum Scale vs IBM Cloud Object Storage

Compared 8% of the time

VAST Data vs IBM Cloud Object Storage

Compared 6% of the time

More IBM Cloud Object Storage Competitors

Product Reports

Download Pure Storage FlashBlade product report

Pure Storage FlashBlade

January 2026

Dell PowerScale (Isilon)

Download Dell PowerScale (Isilon) product report

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