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Dell PowerScale (Isilon) vs IBM Cloud Object 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

Everpure FlashBlade
Sponsored
Ranking in File and Object Storage
8th
Average Rating
8.8
Reviews Sentiment
7.5
Number of Reviews
39
Ranking in other categories
All-Flash Storage (14th), Software Defined Storage (SDS) (9th)
Dell PowerScale (Isilon)
Ranking in File and Object Storage
2nd
Average Rating
8.8
Reviews Sentiment
7.0
Number of Reviews
81
Ranking in other categories
NAS (1st)
IBM Cloud Object Storage
Ranking in File and Object Storage
12th
Average Rating
8.2
Reviews Sentiment
7.2
Number of Reviews
8
Ranking in other categories
No ranking in other categories
 

Mindshare comparison

As of April 2026, in the File and Object Storage category, the mindshare of Everpure FlashBlade is 5.7%, down from 5.7% compared to the previous year. The mindshare of Dell PowerScale (Isilon) is 6.5%, down from 8.8% compared to the previous year. The mindshare of IBM Cloud Object Storage is 1.4%, up from 1.1% compared to the previous year. It is calculated based on PeerSpot user engagement data.
File and Object Storage Mindshare Distribution
ProductMindshare (%)
Dell PowerScale (Isilon)6.5%
Everpure FlashBlade5.7%
IBM Cloud Object Storage1.4%
Other86.4%
File and Object Storage
 

Featured Reviews

MikaelHellström - PeerSpot reviewer
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.
BE
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.
reviewer2384904 - PeerSpot reviewer
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.

Quotes from Members

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

Pros

"We have seen a reduction in the total cost of ownership by around 20%."
"Among its most appealing features are its ease of handling and minimal maintenance requirements."
"We have integrated it with VMware. The integration process is pretty good. Especially with VMware, it helps with the capacity of it."
"My advice for anybody considering this solution is to go by the business needs, as opposed to just choosing the fastest solution."
"The onboarding and integrated monitoring tools are pretty good."
"The most valuable feature is Safe Mode."
"We chose Pure because we like their support model and we like their performance."
"It is very easy to use, and it is very fast."
"Based on the flexibility of the system itself, it was easy for us to manage the growth by buying individual nodes as needed."
"The system is robust, has had a big impact on the efficiency of our organization, and serves as storage for our core application, which is a revenue-generating application that plays a key role in our business."
"My experience with Dell as a vendor is pretty good; they are probably one of the best in the industry."
"Its scalability has been huge for us."
"It has saved me from having to hire one person over the last six months, and our IT team has gotten about 40 percent of its time back."
"I would rate Dell PowerScale (Isilon) as a product a ten out of ten."
"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"
"I rate Dell PowerScale (Isilon) a ten out of ten, and we continue to keep buying it."
"IBM Cloud Object Storage integrates well."
"IBM has the most number of additional services, this is the main advantage."
"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."
"The standout feature of IBM Cloud Object Storage is its top-notch security, making it ideal for sensitive applications like mobile financial transactions."
"The integration itself is pretty easy. The access appliances create the connection between both environments."
"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."
 

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."
"I would like to see more monitoring capability included 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."
"The technical support for Pure Storage FlashBlade also needs improvement. It used to be good, with more experienced engineers. Nowadays, it isn't, and it takes longer for support to solve problems."
"I would like to see more VM-Aware features in the next release of this solution."
"We initially encountered challenges with the assembly process due to issues with the documentation required during setup, an area where Pure Storage needs improvement."
"Its configuration should be easier."
"I want efficiency. FlashBlade doesn't have efficiency now."
"We're still fairly new with it. It's been a pretty positive experience thus far. However, they could improve implementation, as we had to rack and stack it ourselves."
"I think Dell PowerScale (Isilon) can be improved, as the cost models are quite expensive for administration."
"It is a bit higher priced than some of the other systems."
"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."
"Dell's customer service needs improvement. Specifically, hardware failures under warranty should be addressed within the promised timeline."
"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."
"The product’s expansion capacity, pricing clarity, and ease of use need improvement."
"Dell PowerScale can improve on its multi-tenant part because as a service provider, we have bigger clusters in data centers where we can serve multiple customers and grant them dedicated management points and automation features that can be managed in a multi-tenant environment."
"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."
"The performance could be better. You can never achieve the same performance as hardware, and 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."
"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."
"Sometimes technical support lacks a comprehensive understanding of the entire solution, only focusing on the product they support."
"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."
 

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 pricing for FlashBlade is between cheap and moderate."
"Our licensing is renewed annually."
"I rate the tool's pricing a seven to eight out of ten."
"We used a reseller for the purchase."
"I understand that it is competitively priced compared to other brands."
"The pricing is relatively expensive due to the FlashBlade technology. However, for companies needing quick and reliable data access, the cost is justified."
"I have seen ROI. It has allowed me to increase the density of my VMs without having to purchase anything additional."
"Dell PowerScale (Isilon) 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 pricing for this solution is reasonable."
"Price was also a significant factor in our decision to go with PowerScale. The team at EMC, now Dell EMC, came through with a highly competitive offer that tipped the scales towards their solution. There was only one other solution around the same price point, but it could not match PowerScale on features. That other solution is no longer on the market."
"The price of the solution is high."
"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 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."
"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."
"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."
"IBM Cloud is cheaper than AWS. If you want to scale your cloud infrastructure, it can be bought at almost the same price."
"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."
"Pricing is not cheap."
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Top Industries

By visitors reading reviews
Financial Services Firm
12%
Manufacturing Company
10%
Computer Software Company
9%
Government
7%
Manufacturing Company
11%
Computer Software Company
9%
Financial Services Firm
9%
Government
8%
Financial Services Firm
20%
Computer Software Company
15%
Comms Service Provider
8%
University
8%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business11
Midsize Enterprise11
Large Enterprise21
By reviewers
Company SizeCount
Small Business19
Midsize Enterprise20
Large Enterprise46
By reviewers
Company SizeCount
Small Business3
Midsize Enterprise2
Large Enterprise4
 

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 I mentioned before, we did not purchase Dell PowerScale (Isilon) directly. Since our organization is a government ...
What needs improvement with Dell EMC PowerScale (Isilon)?
I have experienced a RAM failure in some of the nodes of Dell PowerScale (Isilon), and that required hardware replace...
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 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...
 

Also Known As

Pure Storage FlashBlade
PowerScale, Dell EMC Isilon
Cleversafe
 

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,
Bitly, Dreamstime, Prime Research
Find out what your peers are saying about Dell PowerScale (Isilon) vs. IBM Cloud Object Storage and other solutions. Updated: April 2026.
890,071 professionals have used our research since 2012.