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 March 2026, in the File and Object Storage category, the mindshare of Pure Storage FlashBlade is 5.6%, down from 5.8% compared to the previous year. The mindshare of Dell PowerScale (Isilon) is 6.7%, down from 8.8% compared to the previous year. The mindshare of IBM Cloud Object Storage is 1.3%, up from 1.1% 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)	6.7%
Pure Storage FlashBlade	5.6%
IBM Cloud Object Storage	1.3%
Other	86.4%

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.

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

"The initial setup is pretty easy and simple."

"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."

"We can capacity plan at a greater level than we used to."

"The most valuable feature is Safe Mode."

"I would rate Pure Storage FlashBlade a ten out of ten."

"The product is scalable and easy to expand."

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

"The initial setup is pretty quick."

More Pure Storage FlashBlade pros

"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."

"The solution provides massive performance, scalability, efficiency, and ease of management."

"The most valuable feature of Dell PowerScale (Isilon) integration with other solutions because of the standard file system protocol."

"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."

"The guaranteed performance, combined with the scalability through its scale-out capability, makes it an excellent choice."

"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 recent introduction of inline deduplication and compression has drastically improved our efficiency ratios to make it an economical product. This solution has also had a positive impact on our employees' productivity because it reduces the amount of admin that our staff needs to handle."

"The flexibility and the user-friendly interface are the most valuable features."

More Dell PowerScale (Isilon) pros

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

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

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

"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."

"IBM Cloud Object Storage integrates well."

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

"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."

Cons

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

"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."

"I have not seen ROI."

"The technical support needs to improve. When we open a case, it is auto assigned to a support tech person. Nine out of ten times, we get an email right back saying that person is off until tomorrow. I cannot handle that. They just did this over the weekend to us, too. I had to call our rep and have them do something about it."

"The feature that we're waiting on is better integration with the cell services."

"I would like to see more monitoring capability included in the next release of this solution."

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

"In the realm of micro-services, I think that Pure Storage can do well if they start getting in there and making their arrays more micro-services ready."

More Pure Storage FlashBlade cons

"I think Dell PowerScale (Isilon) can be improved, as the cost models are quite expensive for administration."

"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. That's a little bit of a ding that we have on it. It does so much magic in order to protect itself from drive failures or multiple drive failures, that it automatically handles the provisioning and storage of your data. But by doing that, finding out why a file of a certain size, or a directory of a certain size, is using more storage than is being reported in InsightIQ, is very difficult to discern."

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

"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."

"Improvements could be made on the object storage side."

"They should add some new services that should be for on-premises, and more analytics should be there for the data, allowing for a deep dive from that analytics, which is currently missing."

"Dell PowerScale (Isilon) could improve in terms of having some problems with using IPv6 and IPv4 on the same namespace at the same time, which is one of our biggest problems as you have to do some really bad workarounds to get that working."

"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."

More Dell PowerScale (Isilon) cons

"IBM has limited cloud storage."

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

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

"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."

"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 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."

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

More IBM Cloud Object Storage cons

Pricing and Cost Advice

"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."

"I rate the tool's pricing a seven to eight out of ten."

"Licensing fees are paid yearly."

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

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

"The price could be cheaper."

"The price is a little high."

"The product is very expensive."

More Pure Storage FlashBlade pricing and cost advice

"It is an expensive solution."

"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."

"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."

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

"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."

"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."

"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."

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."

"Pricing is not cheap."

"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."

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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

Government

Financial Services Firm

25%

Computer Software Company

16%

Manufacturing Company

University

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	44

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)?

When it comes to Dell PowerScale (Isilon), I think that because it differs when you have a normal customer and a deve...

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 5% of the time

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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 4% 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

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Dell ObjectScale vs IBM Cloud Object Storage

Compared 15% of the time

MinIO vs IBM Cloud Object Storage

Compared 14% of the time

Red Hat Ceph Storage vs IBM Cloud Object Storage

Compared 11% of the time

Hitachi Content Platform vs IBM Cloud Object Storage

Compared 8% of the time

Huawei FusionStorage vs IBM Cloud Object Storage

Compared 6% of the time

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Product Reports

Pure Storage FlashBlade

Download Pure Storage FlashBlade product report

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