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Lenovo ThinkSystem DM Series vs NetApp AFF comparison

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Comparison Buyer's Guide

Executive SummaryUpdated on Sep 18, 2024

Review summaries and opinions

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

ROI

Sentiment score
1.0
Organizations reduced costs and improved performance with Pure FlashArray X NVMe, achieving quick ROI and efficient resource management.
Sentiment score
2.8
Customers achieved cost savings and improved efficiency with Lenovo ThinkSystem DM Series, benefiting from better data management and scalable solutions.
Sentiment score
7.7
NetApp AFF enhances performance and storage efficiency with cost savings, better response times, and reduced downtime, proving ROI.
By opting for the gold subscription every three years, you get a free upgrade to the latest controller release.
If you wait more than seven years to buy another one, you get a return on your investment.
 

Customer Service

Sentiment score
7.1
Pure FlashArray X NVMe's technical support is praised for responsiveness, despite occasional follow-up issues, earning high customer satisfaction.
Sentiment score
4.9
Lenovo ThinkSystem DM Series customer service experiences are mixed, with some praising it and others citing poor support.
Sentiment score
8.2
NetApp AFF's customer service is praised for responsiveness and resolution speed, though response times and consistency can vary.
With Pure FlashArray X NVMe, we need to escalate the issue and get an account manager for its resolution.
We also had one outage where a controller of one of the products had failed and had to be replaced on-site.
Customers always have their issues resolved promptly.
The support for NetApp AFF is comprehensive—not just the documentation for self-guided reading, but for simple questions, spare parts, or urgent needs, you can have a contract that enables delivery the next business day or within four hours, depending on your process requirements.
 

Scalability Issues

Sentiment score
7.1
Pure FlashArray X NVMe offers scalable storage with low latency, easy upgrades, though capacity customization and high costs are noted.
Sentiment score
6.4
Lenovo ThinkSystem DM Series is highly scalable for medium to large enterprises, though costs and connections can limit expansion.
Sentiment score
7.8
NetApp AFF offers scalable, adaptable storage solutions, easily expanding without disruption, though cost and physical limits present challenges.
You cannot increase capacity if latency is present.
It is highly scalable.
It is suitable for both medium-sized and enterprise businesses.
Lenovo ThinkSystem DM Series is scalable, and I would rate its scalability as a seven out of ten.
You can add more disks, more disk shelves, or migrate the data seamlessly.
 

Stability Issues

Sentiment score
8.1
Pure Storage offers exceptional stability and reliability with outstanding support, consistently achieving high user ratings for performance and service.
Sentiment score
5.5
Lenovo ThinkSystem DM Series is generally stable and reliable, though some users report occasional failures and resilience issues.
Sentiment score
8.4
NetApp AFF is highly stable, reliable, and handles tasks without disruption, with minor bugs resolved quickly.
During the eight years, there have been no problems such as hardware failure or stopping.
I would rate the stability of the solution as a ten out of ten.
I would rate the stability of the product at seven out of ten.
If I have sold fifty boxes, about fifty percent of them experienced failure.
They have always been upgrading very fast and implementing patches to resolve these issues.
 

Room For Improvement

Pure FlashArray X requires cost-effective improvements in UI, integration, cloud features, multitenancy, analytics, backup, AI, and scalability.
Lenovo ThinkSystem DM Series needs licensing flexibility, enhanced features, better service, and improved pricing and management.
NetApp AFF users seek easier setup, enhanced management, lower latency, better support, improved documentation, and cost-effective, scalable solutions.
Many options to check performance, like read, writes, random writes, and random reads, are missing in Pure FlashArray X NVMe.
We would appreciate a built-in transparent failover in the next release to eliminate the need for a separate metro cluster.
I'm eagerly anticipating the roadmap's promise of introducing multiple controllers, which could significantly boost scalability and resilience.
Many customers have lost data while configuring it, indicating a need for improvement.
The GUI of ONTAP Command Manager could be better, but the CLI is perfect.
Our backup system, Commvault, has an amazing capacity to do compression and deduplication better than NetApp AFF by itself.
 

Setup Cost

Enterprise buyers see Pure FlashArray X NVMe as a justified premium investment due to performance and comprehensive licensing.
Lenovo ThinkSystem DM Series offers competitive pricing comparable to Dell and HPE but with complex cost calculations and optional features.
NetApp AFF pricing varies widely, viewed as expensive yet cost-effective, with negotiation impacting affordability and overall value justifying costs.
While the prices may be higher than those of other vendors, we see it as a market leader with benefits.
The support can be a bit pricey, but the solution is more cost-effective than anything else out there.
Pure FlashArray X NVMe’s pricing is cheaper than other products.
There are extra expenses beyond the standard licensing fee for features such as replication and deduplication, which are available on demand.
NetApp support is cheaper than Dell support.
While it is not cheap, they have introduced a new series of AFF that are more affordable.
 

Valuable Features

Pure FlashArray X NVMe offers exceptional performance, reliability, scalability, and seamless VMware integration, enhancing workload efficiency and user experience.
Lenovo ThinkSystem DM Series is praised for FlexClone, cloud tiering, data efficiency, and ONTAP features, offering superior service.
NetApp AFF excels with efficiency, seamless ONTAP integration, ease of use, high availability, low latency, and real-time replication.
Pure Storage has signature security technology, which cannot be deleted, even if you are an administrator.
The platform's robust features include excellent sustainability tracking, and a comprehensive dashboard offering insights into IOPS, bandwidth, performance, and virtual activities.
Its data compression feature is the best that we have ever seen.
One of the most valuable features of Lenovo ThinkSystem DM Series is the snapshot feature.
You can even download the ONTAP simulator and deploy it on your virtualization platform and test almost all features.
Two important features that NetApp AFF has are the performance and the capacity to save data against attacks in general or hardware failure.
 

Categories and Ranking

Pure FlashArray X NVMe
Sponsored
Ranking in All-Flash Storage
14th
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
23rd
Average Rating
7.8
Reviews Sentiment
6.0
Number of Reviews
14
Ranking in other categories
No ranking in other categories
NetApp AFF
Ranking in All-Flash Storage
2nd
Average Rating
9.0
Reviews Sentiment
7.6
Number of Reviews
312
Ranking in other categories
NVMe All-Flash Storage Arrays (2nd)
 

Mindshare comparison

As of July 2025, in the All-Flash Storage category, the mindshare of Pure FlashArray X NVMe is 0.8%, up from 0.8% compared to the previous year. The mindshare of Lenovo ThinkSystem DM Series is 2.1%, down from 2.7% compared to the previous year. The mindshare of NetApp AFF is 9.4%, down from 9.8% compared to the previous year. It is calculated based on PeerSpot user engagement data.
All-Flash Storage
 

Featured Reviews

Jaehoon Oh - PeerSpot reviewer
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.
Mark Richmond - PeerSpot reviewer
Reliable and fast servers with good support
We use on-premise servers with Lenovo ThinkSystem. We set up Hyper-V and load multiple types of servers including a domain controller, a SQL Server, and application servers The solution provides fast servers that are reasonably priced. We set up RAID ten to ensure drive redundancy, leading to…
Ian Rousom - PeerSpot reviewer
Flexible with great support and high-speed multi-protocol storage
Keystone offers flexible consumption models that go beyond just how much capacity at such and such a speed, et cetera. We don't always know what the profile of that data will be. However, if we can quickly agree on terms that meet our needs and make NetApp still reasonably profitable, we can confidently deploy, see how things go and adjust. That kind of service delivery model, that customer service model has sped things up and made contract negotiations much easier. It frankly made the owners of the system more confident. We've experienced faster time to market. It's hard for us to find and retain infrastructure staff. We're in a business where the firm fixed price contract reigns supreme, and so we can't always just offer someone more money. However, if they can dedicate their time to learning one company's portfolio and learning it really well, but be useful in a bunch of different places, they will do well. We've seen that in a lot of different places. We've been able to hire younger people and retain them, moving them from program to program based on their understanding of the solution its skill set, and its portability. It's been useful for high-speed multi-protocol storage in places with ever-increasing density. We have limits on how much power and cooling and rack space we have, and yet they've delivered every time. We needed a storage company that had mastery of multi-protocol, and this solution stands out. They especially stand out as a secure provider. We require solutions that we can run ourselves, that we can air gap since so much of what we do is either classified or very sensitive or cannot live in a public ecosystem. For us, the issue consuming AI has been the trust of the models given to us by third parties. We can't necessarily trust their provenance, what fed them, what originally trained them, or what gave them their worldview, for lack of a better term. We can't simply just trust that at face value since we know nothing about where it came from or what inferences it might make. We must assume that some AI inferences were made deliberately to damage or hurt national security systems. So the models that we start with tend to be very, very primitive, crude, and not well trained, so we have to train them much longer and not always with the availability of cloud that has inexhaustible capacity. A partner who understands this and provides consistency at all scales is very important.
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Use our free recommendation engine to learn which All-Flash Storage solutions are best for your needs.
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Comparison Review

it_user186357 - PeerSpot reviewer
Jan 28, 2015
NetApp vs. XtremIO
Is there another storage platform as feature rich as NetApp FAS? I think it is fair to say that NetApp FAS running Clustered Data ONTAP is a very feature rich platform – the move to the clustered version of ONTAP has brought many next-generation features including Scale-out and Non-disruptive…
 

Top Industries

By visitors reading reviews
Computer Software Company
14%
Financial Services Firm
11%
Manufacturing Company
11%
Government
6%
Computer Software Company
21%
Comms Service Provider
7%
Financial Services Firm
7%
Manufacturing Company
6%
Educational Organization
22%
Computer Software Company
14%
Manufacturing Company
13%
Financial Services Firm
7%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
 

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 needs improvement with Pure FlashArray X NVMe?
Adding some functions to the product would be beneficial. Storage replication should be essential, and the analytics ...
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 is the Biggest Difference Between Dell EMC Unity and NetApp AFF?
Well, Is one thing NetApp Storage has vs other brand is the mix of protocol CIFS with NFS booth working together in t...
What is the Biggest Difference Between Dell EMC Unity and NetApp AFF?
This question is very dependent on your requirements. Both are among the best in the field. Of course, the intended c...
What is the Biggest Difference Between Dell EMC Unity and NetApp AFF?
The answer depends on your needs and budget. If you want high performance (who doesn't) or let's say the latency matt...
 

Also Known As

Pure FlashArray//X NVMe, Pure FlashArray//X, FlashArray//X
ThinkSystem DM Series
NetApp All Flash FAS, NetApp AFF, NetApp Flash FAS
 

Overview

 

Sample Customers

Fremont Bank, Judson ISD, The Nielsen Company
Information Not Available
DreamWorks Animation, FICO, Yahoo! Japan
Find out what your peers are saying about Lenovo ThinkSystem DM Series vs. NetApp AFF and other solutions. Updated: July 2025.
861,803 professionals have used our research since 2012.