HPE NonStop vs Lenovo Flex System comparison

Hewlett Packard Enterprise and Lenovo are both solutions in the Blade Servers category. Hewlett Packard Enterprise is ranked #12, while Lenovo is ranked #8 with an average rating of 8.7. Hewlett Packard Enterprise holds a 4.7% mindshare in Blade Servers, compared to Lenovo’s 4.6% mindshare. Additionally, 90% of Hewlett Packard Enterprise users are willing to recommend the solution, compared to 100% of Lenovo users who would recommend it.

HPE NonStop

Read 12 HPE NonStop reviews

963 Views
963 Comparison Views

90% willing to recommend

Lenovo Flex System

Read 10 Lenovo Flex System reviews

716 Views
716 Comparison Views

100% willing to recommend

HPE NonStop

Lenovo Flex System

Comparison Buyer's Guide

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Executive SummaryUpdated on Feb 3, 2025

HPE NonStop and Lenovo Flex System compete in the enterprise computing solutions market. Customers often favor HPE NonStop for its scalability and high availability. However, Lenovo Flex System is noted for broader integration capabilities and modern architecture, offering a compelling value proposition for many.

Features: HPE NonStop is recognized for its fault-tolerant systems, ensuring 24/7 uptime for mission-critical applications, along with strong workload management capabilities. It also offers linear expandability, allowing businesses to double processing power easily. Lenovo Flex System stands out with its flexible architecture, supporting diverse configurations and advanced virtualization features, making it suitable for dynamic IT environments.

Room for Improvement: HPE NonStop can refine its integration capabilities and modernize its architecture to compete with contemporary systems. Additionally, expanding its ecosystem support would enhance its adaptability. Lenovo Flex System could improve its deployment simplicity, enhance user interface design, and streamline processes to reduce configuration complexity, making it more accessible for less-technical teams.

Ease of Deployment and Customer Service: HPE NonStop offers a straightforward deployment process and dedicated support, making it reliable with minimal setup hurdles. Lenovo Flex System requires intricate configuration due to its advanced features but benefits from robust support infrastructure, which aids in its complex deployments.

Pricing and ROI: HPE NonStop has a higher initial setup cost justified by its exceptional reliability and long-term operational savings, providing strong ROI for businesses prioritizing uptime. Lenovo Flex System offers a more moderate pricing structure, attracting customers with a fast ROI and cost-effective scalability, appealing to organizations seeking scalable growth.

To learn more, read our detailed HPE NonStop vs. Lenovo Flex System Report (Updated: March 2026).

Buyer's Guide

HPE NonStop vs. Lenovo Flex System

March 2026

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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

HPE NonStop

Ranking in Blade Servers

12th

Average Rating

8.8

Reviews Sentiment

6.9

Number of Reviews

Ranking in other categories

No ranking in other categories

Lenovo Flex System

Ranking in Blade Servers

8th

Average Rating

8.4

Reviews Sentiment

7.7

Number of Reviews

Ranking in other categories

No ranking in other categories

Mindshare comparison

As of March 2026, in the Blade Servers category, the mindshare of HPE NonStop is 4.7%, up from 3.8% compared to the previous year. The mindshare of Lenovo Flex System is 4.6%, up from 2.8% compared to the previous year. It is calculated based on PeerSpot user engagement data.

Blade Servers Mindshare Distribution
Product	Mindshare (%)
Lenovo Flex System	4.6%
HPE NonStop	4.7%
Other	90.7%

Blade Servers

Featured Reviews

Roni Wijaya

Vice President of It Operations at a computer software company with 51-200 employees

With a perfect record for uptime, the solution ensures a return on investment

Since it is a legacy tool, there is a need to change it for flexibility. I think now it has improved because the security is very good. It is very secure for the performance of the machine critical application service, and it is very good. I don't know how to speak more on improvement needed because it's a good enough tool. However, depending on the application, it's limited. Not a lot of applications run on HPE NonStop. It is not flexible because I know that because of the compatibility of Java with HPE NonStop. When we are using Java, the performance is not good.

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Farhan-Ahmad

Senior System Administrator at Khushhali Microfinance Bank

Used to run the compute load on servers, but firmware and driver upgrades are a bit difficult

We use the solution for multiple purposes, such as in the virtualization cluster and the standalone applications We use the solution as a compute model to run the compute load on servers. The solution's firmware and driver upgrades are a bit difficult. I have been using Lenovo Flex System for…

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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

"Feature-wise, the most valuable one is the fact that it has 100 hundred percent uptime every year. Secondly, it is stable."

"This is the standard for reliability and fault-resilience."

"They've been very reliable since we started using them in 1978, but we're going to replace them in a few years."

"The stability of HPE NonStop is good."

"Because we're able to get immediate support, this prevents downtime and directly impacts cost savings."

"It helps us to keep the business running 24/7."

"If you are contemplating a fault-tolerant, high uptime transaction processing machine with above normal transactions volumes - to act as a transaction server with infrequent changes to code - and you simply must have bulletproof performance - this might be the ticket."

"Technical support is A++. If there is a problem, HPE will fix it."

More HPE NonStop pros

"It's stable, it works well, and we have had no problem with it for a long time."

"We use the solution as a compute model to run the compute load on servers."

"The Lenovo Flex System is very stable."

"Flex System's best features are its performance and stability."

"It comes at a good price. We didn't face any problems with this product."

"The functionality is reliable and requires minimal support."

"One of the most valuable features of this solution is its ease of use."

"The initial setup is straightforward."

More Lenovo Flex System pros

Cons

"The NonStop Support Center is very good, with an occasional bump in the road."

"It is not flexible...Not a lot of applications run on HPE NonStop."

"If pushed, then the only thing I can think of would be utilities provided by the vendor."

"Currently the NonStop platform doesn’t support virtualization of servers or CPU’s. Only storage."

"It would be helpful if they brought the price down."

"HPE NonStop could improve by having infrastructure management."

"The NonStop system is well priced, but the software that runs on it is quite pricey."

"NonStop (formerly known as Tandem) in the Guardian OS could use another, friendlier macro language."

More HPE NonStop cons

"Flex System's integration with the XClarity Management System could be improved."

"It does not have the same module flexibility that was present in IBM Blade. On the Blade System, I was able to choose between the Cisco module, or BMC module. Since the switch to Lenovo, I have not had the same choice of modules, only the BMC modules."

"The user interface needs improvement because they have an application from which we have to manage the whole system and all of the infrastructure."

"The solution could improve by providing more integration with other platforms."

"The solution's firmware and driver upgrades are a bit difficult."

"The most valuable feature of the Lenovo Flex System is the storage system."

"Forced restarts due to free upgrades is an issue that needs to be resolved. We can manage this as we have high availability and redundancy, but without that it could be a real problem."

"I had some difficulties with the initial setup."

More Lenovo Flex System cons

Pricing and Cost Advice

"HPE NonStop is definitely on the higher end."

"On a scale of one to ten, where one is very cheap, and ten is very expensive, I rate the pricing an eight."

"The price of the solution is too high. If they lowered the price substantially it would open up more opportunities. It's considered a replacement for the old 9000 boxes of HP. If it had a lower price, we would be able to compete in the financial, and other sectors and other solutions such as Terraform. Having a high price makes other solutions more attractive."

"There is a one-off payment to buy the equipment and the support is purchased annually."

"We have the whole maintenance for the 3 years, starting the deployment. We also have the VMware license for 3 years and I think we have another license to buy. There are no additional costs besides licensing."

"The 14 blade server allows significant room for upscaling before having to invest in another chassis. You would have to purchase another chassis much sooner in the case of an eight or nine blade server."

"The is an annual license cost to use the Lenovo Flex System. If the price was less expensive and flexible overall and for additional features, our customers would be happier."

"We are just paying the operational cost, which is not much."

"The price is interesting. I am able to quote a client based on their needs and offer them either Lenovo or Dell."

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Top Industries

By visitors reading reviews

Computer Software Company

17%

Financial Services Firm

14%

University

Manufacturing Company

13%

Financial Services Firm

11%

University

Marketing Services Firm

Company Size

By reviewers

Large Enterprise

Midsize Enterprise

Small Business

By reviewers
Company Size	Count
Small Business	4
Midsize Enterprise	3
Large Enterprise	7

By reviewers
Company Size	Count
Small Business	3
Large Enterprise	7

Questions from the Community

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What is your experience regarding pricing and costs for Lenovo Flex System?

Compared to its quality, the pricing is very reasonable and represents good value.

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What needs improvement with Lenovo Flex System?

Continuing the production of this product is necessary. It is currently out of support, and we are seeking support from other sources besides Lenovo.

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What is your primary use case for Lenovo Flex System?

We are using Lenovo Flex System on the server for our VMware environment, which includes our VMs and all our servers, Linux and Windows. It manages the daily operation efficiently.

See all answers

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Intel MFSYS25 vs HPE NonStop

Compared 8% of the time

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Compared 14% of the time

Fujitsu Primergy BX400 Series vs Lenovo Flex System

Compared 12% of the time

Dell PowerEdge MX- Series vs Lenovo Flex System

Compared 11% of the time

Cisco UCS E-Series Servers vs Lenovo Flex System

Compared 7% of the time

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Product Reports

Buyer's Guide

HPE NonStop

March 2026

Download HPE NonStop product report

Buyer's Guide

Blade Servers

February 2026

Download Lenovo Flex System product report

Also Known As

HP NonStop, HPE Integrity NonStop

Flex System Blade Servers, Flex System SN Series

Overview

When availability matters, the new HPE Integrity NonStop X enables you to stay ahead of your competition by mitigating the risk of downtime and effortlessly meeting your business processing, OLTP, and database requirements all with an industry-standard x86 architecture. HPE brings you an unparalleled portfolio of HPE Integrity NonStop systems the NonStop i family and the NonStop X family. These systems deliver the highest level of availability for the most-demanding, high-value workloads and customer-facing applications.

Hewlett Packard Enterprise

Flex System is Lenovo’s proven, 2nd generation blade, that efficiently runs your infrastructure applications with up to 80% better density than standard rack server deployments.

Lenovo

Sample Customers

Bankart, Capital Securities Corporation

Information Not Available

Buyer's Guide

HPE NonStop vs. Lenovo Flex System

March 2026

Free Report: HPE NonStop vs. Lenovo Flex System

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