Dell PowerScale (Isilon) vs VAST Data comparison


Comparison Buyer's Guide

Executive Summary

Categories and Ranking

Dell PowerScale (Isilon)
Ranking in File and Object Storage
Average Rating
Number of Reviews
Ranking in other categories
NAS (1st)
Ranking in File and Object Storage
Average Rating
Number of Reviews
Ranking in other categories
All-Flash Storage (17th), NVMe All-Flash Storage Arrays (8th)

Mindshare comparison

As of June 2024, in the File and Object Storage category, the mindshare of Dell PowerScale (Isilon) is 7.1%, down from 7.3% compared to the previous year. The mindshare of VAST Data is 3.7%, up from 1.9% compared to the previous year. It is calculated based on PeerSpot user engagement data.
File and Object Storage
Unique Categories:
All-Flash Storage
NVMe All-Flash Storage Arrays

Featured Reviews

Yamandù Correa - PeerSpot reviewer
May 20, 2024
Helps reduce data silos, improves performance, and flexibility
Our customers have seen improvement in performance, space, and flexibility for growth and management of data protection through snapshots and other systems. The AI models are something we are looking forward to trying but are not there yet. The algorithms are specific to each company and their industry. One of the most important things is the data localization. Many scenarios require the project data traffic to be close to where it is generated and read. A lot of interaction is between users and systems. So data localization is one of the most important things in terms of using the data algorithm. We don't need to manage our PowerScale and run its storage from any location yet but it is something that is coming for sure because several customers have centralized data in main data centers. But in different locations across the globe. So this is going to be a topic. I think that through the different functionalities that the Dell platform can grant, it will be a great player. When it comes to the flexibility for supporting various data workloads while protecting them, the combination of PowerScale and PPDM and all the other components of the data protection solution right now is key. So the automatic integration between the products is one of the killer features of the solution itself. PowerScale helped us to reduce data silos. This has simplified the management of large data environments in terms of scalability and management instead of having a different solution for the right reports to see how the data evolves and how to better manage them. PowerScale can do that in combination with the other components of the ecosystem. In terms of risk reduction, We need to mention the data management and the recovery part, So of course, the integration with the data domain is key. The fact that we can rely on these functions, and the fact that we also manage different customers, and possess the recovery plans and tests that can prove the solution is working.
Alan Powers - PeerSpot reviewer
May 3, 2023
Stability-wise, a device that has been up and running for years
The solution is useful for machine learning and scientific applications, including computer simulations The failover capability and resiliency are some of the solution's valuable features. The big thing is resilience because it has richer coding in it, so multiple devices can't fail. Also, one…

Quotes from Members

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


"Dell PowerScale includes a wealth of features that are important from a security and recovery perspective."
"Dell PowerScale's performance is good."
"The product's scalability feature is super easy to use."
"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."
"The tool's most valuable features are high density and scalability."
"Its most valuable feature is the DR capabilities replication."
"It has allowed us to have more consistent quality controls. It has also allowed us to expand the number of servers in clients processing and accessing data, allowing us to get a lot bigger projects out the door."
"The solution provides massive performance, scalability, efficiency, and ease of management."
"This has been one of the most reliable storage systems that I have ever used."
"The solution is useful for machine learning and scientific applications, including computer simulations."


"The tool's support team and the way the cases are handled by the product's technical support team are both areas of concern where improvements are required."
"If they integrated some functions, as they have on Data Domain with a cyber recovery vault, it would be ideal."
"There aren't many templates still coming out for it. They need to provide templates so we can copy and paste what we've done in the past to future, new things."
"Its configuration needs to be more straightforward."
"PowerScale is not suitable for virtual environments."
"It would be good to have synchronized mirroring between two clusters without using a third-party program."
"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."
"Dell PowerScale's deployment is not easy."
"The write performance could be improved because it is less than half of the read performance."
"The read/write ratio is an area in the solution with some flaws and needs improvement."

Pricing and Cost Advice

"It is a really expensive solution."
"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 Dell PowerScale (Isilon) is reasonable."
"It is an expensive solution."
"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 (Isilon) is an expensive solution."
"It is an expensive product with a high storage capacity suitable for large data requirements."
"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 acquired VAST Data as a one-time, capital purchase."
"Price-wise, VAST Data is not the cheapest, not the most expensive one."
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Top Industries

By visitors reading reviews
Educational Organization
Computer Software Company
Financial Services Firm
Manufacturing Company
Computer Software Company
Manufacturing Company
Financial Services Firm

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
No data available

Questions from the Community

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)?
The solution's licensing cost varies based on capacity and performance requirements.
What needs improvement with Dell EMC PowerScale (Isilon)?
Dell PowerScale (Isilon) is a little bit pricey, and its pricing could be improved.
What do you like most about VAST Data?
The solution is useful for machine learning and scientific applications, including computer simulations.
What is your experience regarding pricing and costs for VAST Data?
Price-wise, VAST Data is not the cheapest, not the most expensive one.
What needs improvement with VAST Data?
The read/write ratio is an area in the solution with some flaws and needs improvement.

Also Known As

PowerScale, Dell EMC Isilon
No data available



Sample Customers

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,
Norwest Venture Partners, General Dynamics Information Technology, Ginkgo Bioworks
Find out what your peers are saying about Dell PowerScale (Isilon) vs. VAST Data and other solutions. Updated: May 2024.
789,674 professionals have used our research since 2012.