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HPE NonStop vs Lenovo Flex System comparison

 

Comparison Buyer's Guide

Executive SummaryUpdated on Jun 3, 2026

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
12
Ranking in other categories
No ranking in other categories
Lenovo Flex System
Ranking in Blade Servers
9th
Average Rating
8.4
Reviews Sentiment
7.7
Number of Reviews
10
Ranking in other categories
No ranking in other categories
 

Mindshare comparison

As of June 2026, in the Blade Servers category, the mindshare of HPE NonStop is 4.9%, up from 4.1% compared to the previous year. The mindshare of Lenovo Flex System is 4.5%, up from 3.2% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Blade Servers Mindshare Distribution
ProductMindshare (%)
Lenovo Flex System4.5%
HPE NonStop4.9%
Other90.6%
Blade Servers
 

Featured Reviews

Roni Wijaya - PeerSpot reviewer
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.
FA
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…

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."
"Technical support is A++. If there is a problem, HPE will fix it."
"We don't have any issues with the stability of HPE NonStop."
"Because we're able to get immediate support, this prevents downtime and directly impacts cost savings."
"The stability of HPE NonStop is good."
"It helps us to keep the business running 24/7."
"It is a nearly perfect product, although it also has some restrictions and short comings."
"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."
"The Lenovo Flex System is very stable."
"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."
"It comes at a good price. We didn't face any problems with this product."
"The stability and speed are always good. The processor is good and it's still working with our loads."
"Flex System's best features are its performance and stability."
"The product is very user-friendly and has many resources at the enterprise level."
"The functionality is reliable and requires minimal support."
 

Cons

"If pushed, then the only thing I can think of would be utilities provided by the vendor."
"It is not flexible...Not a lot of applications run on HPE NonStop."
"I would never advise someone to buy or to implement the new NonStop because it's hard to find skilled people."
"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."
"It would be helpful if they brought the price down."
"The initial setup is complex. You need the help of a consultant for it to go smoothly."
"The hardware fails often, and I feel that HP really needs to pay more attention to this issue."
"The price of the Lenovo Flex System could improve."
"Continuing the production of this product is necessary. It is currently out of support, and we are seeking support from other sources besides Lenovo."
"The solution could improve by providing more integration with other platforms."
"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 user-interface needs improvement, because they have an application from which we have to manage the whole system and all the infrastructure. This application is not working at our premises, because of some problem with the hardware itself. So although we brought it with our systems, and we used it to manage all the systems: the storage, the switches, and everything, nevertheless we have to support every part alone and enter the interface in one-by-one."
"I had some difficulties with the initial setup."
"The product could improve its integration capabilities."
"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."
 

Pricing and Cost Advice

"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."
"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 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 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 price is interesting. I am able to quote a client based on their needs and offer them either Lenovo or Dell."
"There is a one-off payment to buy the equipment and the support is purchased annually."
"We are just paying the operational cost, which is not much."
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Top Industries

By visitors reading reviews
Computer Software Company
15%
Financial Services Firm
15%
Construction Company
13%
Manufacturing Company
5%
Construction Company
16%
Financial Services Firm
11%
Manufacturing Company
11%
University
6%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business4
Midsize Enterprise3
Large Enterprise7
By reviewers
Company SizeCount
Small Business3
Large Enterprise7
 

Questions from the Community

Ask a question
Earn 20 points
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.
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.
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.
 

Also Known As

HP NonStop, HPE Integrity NonStop
Flex System Blade Servers, Flex System SN Series
 

Overview

 

Sample Customers

Bankart, Capital Securities Corporation
Information Not Available
Find out what your peers are saying about HPE NonStop vs. Lenovo Flex System and other solutions. Updated: June 2026.
900,747 professionals have used our research since 2012.