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 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 IBM Cloud Object Storage is 1.1%, down from 1.9% compared to the previous year. It is calculated based on PeerSpot user engagement data.

File and Object Storage

Featured Reviews

Eric Black

Solutions Architect at Recovery Point Systems

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.

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Eric Burgueño

High-Performance Computing Services Manager at The New Zealand Institute for Plant and Food Research Limited

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.

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Steve Qualls

Senior Storage Engineer at Q & Q IT Consulting

Offers the ease with which you can move data between on-premises storage and the cloud and then retrieve it back on-premises when necessary

IBM Cloud Object Storage supports big data and analytics workflows. However, I usually have to refer to my documentation for that. Cloud environments are part of almost every project I've been involved in over the last few years, but I rely heavily on documentation whenever I need to do anything in the cloud. I know the basics, but the technical details always need refreshing. I create the drawings or diagrams of how the on-premises and cloud environments interact. So, visual representations are helpful. I'll diagram the on-premises environment, the cloud environment, and any appliances in between and then work from there. The integration capabilities simplified our data workflows. Like, the integration itself is pretty easy. The access appliances create the connection between both environments.

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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 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."

"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."

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

"The solution is able to handle workloads and is easy to use. It allows us to actually manage the boxes in less time."

"The initial setup was straightforward. If you know how to plug in power and network you're pretty much qualified. They were on site to configure the network, the box to fit into our network architecture. Other than that, we self-managed from there."

"We have integrated it with VMware. The integration process is pretty good. Especially with VMware, it helps with the capacity of it."

"The main feature I have found to be product replication."

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

More Pure Storage FlashBlade pros

"Isilon is flexible in supporting various data workloads while keeping them protected. Dell continues to release updates and patches which enhance the use of this solution. This includes offering ransomware protection."

"Dell PowerScale helps in saving costs related to power and rack space, reducing physical hardware from over one hundred to twenty-nine chassis."

"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."

"Eyeglass is used to monitor for malware, which is very useful for us."

"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."

"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."

"Its most valuable feature is the DR capabilities replication."

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

More Dell PowerScale (Isilon) pros

"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."

"IBM Cloud Object Storage integrates well."

"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."

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

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

Cons

"The Pure Storage Orchestrator is our biggest pain point at the moment. If we can have more say in future developments of feature sets that we will need to support for our use case, that would be pretty beneficial to us."

"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."

"The documentational aspect of FlashBlade needs improvement."

"Compared to, for example, Hitachi NAS, the solution is not mature at all. It's just in its infancy as far as technology goes."

"The speed could be improved."

"It would be beneficial if the layer could support the S3 protocol and be container ready in the next release."

"I would like to see the licensing fees improved as well as the price per terabytes."

"Its configuration should be easier."

More Pure Storage FlashBlade cons

"Dell PowerScale (Isilon) could improve the load distribution capability. For example, in some cases, the system load is not distributed automatically on all the nodes but is concentrated only on one. You have a peak request on only one node and the others don't do anything."

"The management and monitoring tools comprise a disparate suite of products and the roadmap is very unclear. We've got four different products that look after the Isilon, management-wise, and it's a bit of a mess."

"Improvements could be made to reduce the costs and the high level of knowledge needed to maintain and use them. We had old hard drives with moving parts in Dell PowerScale, and due to this, we must switch to a more efficient environment with all-flash."

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

"The product’s expansion capacity, pricing clarity, and ease of use need improvement."

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

"There is room for improvement with the updates. It can take a significant amount of time to do a major OS update. However, even though it takes multiple reboots, the cluster stays up. If we want to apply a newer version of the OS, we have to roll back some of the patches so that we can upgrade. It requires a few reboots just to do that. The cluster doesn't come down, everything is still running, but it's time-consuming, at times."

"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."

More Dell PowerScale (Isilon) cons

"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."

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

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

"IBM has limited cloud storage."

"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."

"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."

More IBM Cloud Object Storage cons

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."

"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."

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

"I have seen ROI. It has allowed me to increase the density of my VMs without having to purchase anything additional."

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

"Our licensing is renewed annually."

"The product is very expensive."

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

More Pure Storage FlashBlade pricing and cost advice

"Dealing with the product costs and licensing areas is getting easier since Dell is simplifying the licensing process and licensing packages offered to users."

"We paid an additional fee to have Dell's ProDeploy Plus team implement it."

"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 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."

"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."

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

"Dell PowerScale is expensive on the start-up side but we can recoup those costs quickly by not having to reapply the savings to other equipment."

More Dell PowerScale (Isilon) pricing and cost advice

"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."

"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."

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842,767 professionals have used our research since 2012.

Top Industries

By visitors reading reviews

Educational Organization

37%

Computer Software Company

11%

Financial Services Firm

Manufacturing Company

Educational Organization

23%

Computer Software Company

11%

Manufacturing Company

Financial Services Firm

Educational Organization

40%

Financial Services Firm

18%

Computer Software Company

Government

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 ...

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?

Room for improvement depends on customer needs. Some customers prefer pure Object Storage using the S3 protocol, whil...

VAST Data vs Pure Storage FlashBlade

Comparisons

Compared 12% of the time

Red Hat Ceph Storage vs Pure Storage FlashBlade

Compared 11% of the time

MinIO vs Pure Storage FlashBlade

Compared 11% of the time

Pure Storage FlashArray vs Pure Storage FlashBlade

Compared 8% of the time

Dell ECS vs Pure Storage FlashBlade

Compared 6% of the time

More Pure Storage FlashBlade Competitors

NetApp FAS Series vs Dell PowerScale (Isilon)

Compared 15% of the time

Dell ECS vs Dell PowerScale (Isilon)

Compared 13% of the time

Qumulo vs Dell PowerScale (Isilon)

Compared 9% of the time

HPE StoreEasy vs Dell PowerScale (Isilon)

Compared 7% of the time

VAST Data vs Dell PowerScale (Isilon)

Compared 6% of the time

More Dell PowerScale (Isilon) Competitors

MinIO vs IBM Cloud Object Storage

Compared 27% of the time

Dell ECS vs IBM Cloud Object Storage

Compared 26% of the time

Red Hat Ceph Storage vs IBM Cloud Object Storage

Compared 22% of the time

NetApp StorageGRID vs IBM Cloud Object Storage

Compared 10% of the time

Cloudian HyperStore vs IBM Cloud Object Storage

Compared 8% of the time

More IBM Cloud Object Storage Competitors

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 EMC PowerScale (Isilon) storage solutions are designed to help manage data for enterprises of all types. Dell PowerScale systems are simple to install, manage, and scale to virtually any size and include a choice of all-flash, hybrid, or archive nodes. Dell PowerScale solutions stay flexible and reliable no matter how much storage capacity is added, how much performance is required, or how business needs change in the future.

With Dell PowerScale, your data lake always stays simple to manage, simple to grow, simple to protect, and simple enough to handle the most demanding current and future workloads.

Ideal for companies of any size, from small enterprises to multi-national ones, Dell PowerScale storage provides secure collaboration, modular scalability, flexible consumption models, and easy cloud integrations, all with management tools spanning multiple platforms.

Key Benefits of Dell EMC PowerScale Storage

Centralized management: Manage your storage infrastructure from a single unified platform.
Data protection: Dell PowerScale offers security, data protection and replication tools. Back up and protect your data from cyber-attacks with an integrated ransomware defense system.
Artificial intelligence: PowerScale is the foundation for building an integrated and optimized IT infrastructure for AI projects, from concept to production.
Cloud support: Store and manage your data on the cloud and move data between your data center and the cloud. Dell PowerScale runs data-intensive cloud workloads with no outbound traffic costs.
Long-term storage: Dell PowerScale offers highly efficient and resilient active archive storage or long-term data retention for large-scale data archives. With the proven scalability architecture of PowerScale, you can meet your growing archiving demands. Dell PowerScale has a wide variety of enterprise-grade data protection and security options to keep your archived data safe.

Reviews from Real Users

Dell EMC PowerScale storage stands out among its competitors for a number of reasons. Two major ones are its scalability capabilities and its user-friendly centralized management system.

Rachel B., a chief operations officer & acting CFO at Like a Photon, writes, "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."

Keith B., the director of IT at NatureFresh Farms, writes, "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."

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