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Lenovo ThinkSystem DM Series vs NetApp AFF A-Series comparison

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Comparison Buyer's Guide

Executive Summary

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 FlashArray X NVMe
Sponsored
Ranking in All-Flash Storage
17th
Average Rating
9.0
Reviews Sentiment
6.7
Number of Reviews
36
Ranking in other categories
NVMe All-Flash Storage Arrays (6th)
Lenovo ThinkSystem DM Series
Ranking in All-Flash Storage
22nd
Average Rating
7.6
Reviews Sentiment
6.0
Number of Reviews
14
Ranking in other categories
No ranking in other categories
NetApp AFF A-Series
Ranking in All-Flash Storage
18th
Average Rating
8.8
Reviews Sentiment
6.6
Number of Reviews
8
Ranking in other categories
Enterprise SAN (5th)
 

Mindshare comparison

As of January 2026, in the All-Flash Storage category, the mindshare of Pure FlashArray X NVMe is 1.4%, up from 0.7% compared to the previous year. The mindshare of Lenovo ThinkSystem DM Series is 2.0%, down from 2.3% compared to the previous year. The mindshare of NetApp AFF A-Series is 0.5%, up from 0.1% compared to the previous year. It is calculated based on PeerSpot user engagement data.
All-Flash Storage Market Share Distribution
ProductMarket Share (%)
Pure FlashArray X NVMe1.4%
NetApp AFF A-Series0.5%
Lenovo ThinkSystem DM Series2.0%
Other96.1%
All-Flash Storage
 

Featured Reviews

Jaehoon Oh - PeerSpot reviewer
Chief Technology Officer at Lambda256
Supports efficient storage management through volume snapshots and offers reliable non-disruptive upgrades
I have no specific improvements to suggest for Pure FlashArray X NVMe at this time. The performance statistics could be enhanced. I can see the performance statistics in the Pure Storage console, but it does not show the performance by 4K byte unit. It displays IOPS and bandwidth, but IOPS is about real use, and I want to know how many IOPS are currently running in 4K byte units. I cannot see that IOPS because most storage systems report their performance by 4K byte unit. I want to see Pure Storage performance by 4K byte unit to compare with other storage or other internal NVMe SSD.
CA
Service manager at Crescent Technologies
Complicated deployment and poor support persist, affecting overall satisfaction
The deployment process of Lenovo ThinkSystem DM Series is very complicated compared to previous GUI systems. Many customers have lost data while configuring it, indicating a need for improvement. The after-sales service is also very poor. Furthermore, it does not offer basic features like deduplication, and the service is generally considered to be very bad.
MS
Senior Storage Engineer at Orange Business
Efficient data management leads to significant cost savings through advanced inline deduplication
NetApp's inline deduplication and compression are unmatched compared to other vendors. With both deduplication and compression inline, we experience no cost in terms of performance on the systems, however, we have huge savings on the storage side. We can turn it on for everyone and save storage space, allowing us to sell more to customers. NetApp also provides us with an interface for VLAN separation that no other vendor can provide, allowing our customers distinct, separated network layers in between.

Quotes from Members

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

Pros

"The solution is scalable."
"I appreciate the performance."
"The most valuable feature of this solution is its ease of use."
"The solution is very straightforward to set up."
"The standout features for us in Pure FlashArray X NVMe are its robust DDoS protection, seamless transparent failover, and failback capabilities ensuring high availability."
"Overall stability is very good. It is a very stable solution."
"We are satisfied with the performance as it is significantly faster compared to traditional storage options."
"It's incredibly easy to use and greatly simplified our ability to both deploy and manage our storage subsystems."
"The solution offers very good reliable systems and storage for our clients."
"The most valuable feature of the Lenovo ThinkSystem DM Series is its ability to store data well."
"One of the most valuable features of Lenovo ThinkSystem DM Series is the snapshot feature."
"The most valuable feature of Lenovo ThinkSystem DM Series is its capability to tier to the cloud, such as Microsoft Azure or Amazon AWS. Additionally, the integration is good and they are user-friendly."
"The FlexClone feature is the solution's most valuable aspect."
"Last year, I did a DM Series installation with my colleague, and this installation was effortless because we had Lenovo support on the phone, so it was easy to get help if we had any problems."
"The servers are fast and affordable."
"Ability to cluster two storages together with HA availability."
"NetApp support is fantastic."
"We've reduced downtime. Without all of NetApp's benefits, we would have had to reconfigure parts of storage that would have required downtime. We have dramatically reduced our downtime through successive generations of NetApp, allowing us to get Five 9s availability."
"NetApp's inline deduplication and compression are unmatched compared to other vendors."
"MetroCluster is the best product on the market. It synchronizes the storage. NetApp's update packages are a huge advantage because the firmware and server updates are in one package."
"NetApp's hot and cold storage are its most valuable features. We currently use the A series. Immutable snapshots are another advanced security feature that is positive."
"NetApp helps us get the fastest output."
"NetApp AFF A-Series is faster and more robust compared to the all-flash storage of NetApp."
"The amazing thing is that whenever we have come up with an issue where we need to get something done, and it wasn't necessarily available, they could do things for us, usually within the next revision of the software."
 

Cons

"I want to see Pure Storage not only be for fast storage, but I want to see it be for the entire data center."
"You cannot tag a LUN with a description, and that should be improved. What I like on the Unity side is that when I expand LUNs or do things, there is an information field on the LUN. This is the Information field that you can tag on your LUNs to let yourself know, "Hey, I've added this much space on this date". Pure lacks that ability. So, you don't have a mechanism that's friendly for tracking your data expansions on the LUN and for adding any additional information. That's a downside for me."
"The software layer has to improve."
"In terms of what needs improvement, the dashboard and management could be simplified."
"If the customer only needs 500 terabytes and doesn't care how much data they'll put in the server, IBM is cheaper than Pure."
"I would like to see replication and DR features in the next release of this solution."
"Right now, the box itself is just strictly working as a backend storage system. It would be fantastic if we could access it directly like a NAS device through network access or SIS drives. I think they have an interface, but I am not sure how good it is. If we could address a box directly on the network without having to go through a server, it would be great. The replication schemas could be improved. We are not using replication on the storage level right now. We use a different type of replication. If their replication would be as good as the one that we have, I would probably run the replication schema because it might be faster, but I don't know that for a fact. So, I cannot say that they have good replication. All I can say is that they need to inform us better."
"In the next release, I would like to see real-time analytics for further insight into consumption models."
"Lenovo ThinkSystem DM Series is not stable. If I have sold fifty boxes, about fifty percent of them experienced failure."
"The licensing model needs to be revisited. It needs to be simplified."
"I would like Lenovo to add a feature like IBM Easy Tier to DM Series. This is a crucial feature for the customers."
"The tool's pricing is high."
"Lenovo ThinkSystem DM Series could improve by having a snapshot feature. Additionally, there can be other features added to help restore the data faster."
"There might be improvements needed in drive throughput as disk speed has been a limitation on Windows servers."
"Lenovo could have a wider variety of storage solutions in the NAS space."
"The solution needs a simpler licensing theme around the DM series. The problem is if you only need one of the features, you still have to buy the whole thing. The licensing needs to be more granular or flexible so you have the option to only license FlexCone or Inline Compression features."
"NetApp AFF A-Series should work on cost. The solutions, especially enterprise-level storage, should be more affordable to improve their appeal to businesses."
"It would be helpful if our partner organized a yearly session with my team to discuss the new feature sets on our current solutions and other ways NetApp can help us. Perhaps we are missing some information to help us make the right decision."
"The solution's ransomware protection could be improved."
"We have several problems with the limitations of NetApp systems in terms of volume shares. We have a brick in a 700 or a controller, and we sometimes make small volumes, but Kubernetes container volumes don't allow us."
"Pricing could always be lower."
"I really don't have a lot of complaints. In the past, there were issues, however, they've really done a great job of reaching out."
"NetApp is shifting to the cloud and adopting AI, but it is not improving its core technology to deliver faster storage. We're still waiting to see if it improves speed with solutions like the 90 series."
 

Pricing and Cost Advice

"They can tout the functionality and cutting edge technology that they have, but that's where the price tag comes in. The cost is high, but I think as they grow their business and get more customers that it will probably go down a little bit."
"The licensing is on a yearly basis."
"The product is expensive."
"With Pure Storage, we would like to continue seeing price reductions with flash storage. I don't think we're any different than anybody else when we continue to look to the industry for price reductions of both NVMe and traditional SSD storage. We would like to see these prices continue to decline and erode, even displacing large spinning disks."
"Pretty much everything that you need is licensed when you buy the product. Licensing to me is different than the maintenance cost, but they can bleed into one another. We buy the product, and we expect three years of support bundled into what we negotiate on our storage arrays. I would start to see maintenance costs going into the fourth year, but we're not there yet."
"Given its price, Pure is not the first option."
"Its price could be better. It is not too expensive, but it is the high-end cost. It is kind of a Rolls-Royce. You pay a lot, but you get a lot out of it. So, the price pressure on the way down would be great, but at the end of the day, if you need to do the work, you just pay for it."
"The support cost per array is about $20,000 a year for 24/7 support."
"The solution is highly-priced."
"Lenovo offers two software tiers for the DM Series: basic and premium. If you need more features like the MetroCluster, you must buy the premium version. You can stick to the basic software if you don't need MetroCluster or features like asynchronous replication. That makes DM Series a little cheaper."
"The price of the Lenovo ThinkSystem DM Series is good."
"The solution's pricing is similar to Dell and HPE."
Information not available
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Top Industries

By visitors reading reviews
Computer Software Company
12%
Manufacturing Company
11%
Financial Services Firm
11%
Government
6%
Computer Software Company
21%
Comms Service Provider
9%
Manufacturing Company
6%
Retailer
6%
No data available
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business15
Midsize Enterprise11
Large Enterprise12
By reviewers
Company SizeCount
Small Business13
Midsize Enterprise2
Large Enterprise2
By reviewers
Company SizeCount
Large Enterprise8
 

Questions from the Community

What do you like most about Pure FlashArray X NVMe?
Pure FlashArray X NVMe helps to improve our processing speed. It is user-friendly and easy to use.
What is your experience regarding pricing and costs for Pure FlashArray X NVMe?
The price of Pure FlashArray X NVMe is very expensive, though I do not know the actual price because I am using the E...
What needs improvement with Pure FlashArray X NVMe?
I have no specific improvements to suggest for Pure FlashArray X NVMe at this time. The performance statistics could ...
What is your experience regarding pricing and costs for Lenovo ThinkSystem DM Series?
There are extra expenses beyond the standard licensing fee for features such as replication and deduplication, which ...
What needs improvement with Lenovo ThinkSystem DM Series?
The deployment process of Lenovo ThinkSystem DM Series is very complicated compared to previous GUI systems. Many cus...
What is your primary use case for Lenovo ThinkSystem DM Series?
My primary use case for Lenovo ThinkSystem DM Series ( /products/lenovo-thinksystem-dm-series-reviews ) is for storag...
What needs improvement with NetApp AFF A-Series?
NetApp is doing great with cloud integration; however, there may be room for improvement in integrating with existing...
What advice do you have for others considering NetApp AFF A-Series?
It would be great to see some automation from NetApp. I rate NetApp AFF A-Series a nine out of ten.
What is your experience regarding pricing and costs for NetApp AFF A-Series?
With respect to pricing, NetApp can be competitive but hasn't been explored to a large extent.
 

Also Known As

Pure FlashArray//X NVMe, Pure FlashArray//X, FlashArray//X
ThinkSystem DM Series
No data available
 

Overview

 

Sample Customers

Fremont Bank, Judson ISD, The Nielsen Company
Information Not Available
Information Not Available
Find out what your peers are saying about Lenovo ThinkSystem DM Series vs. NetApp AFF A-Series and other solutions. Updated: December 2025.
881,114 professionals have used our research since 2012.