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Cisco UCS B-Series vs Lenovo Flex System vs Supermicro SuperBlade comparison

 

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:
 

Mindshare comparison

As of May 2026, in the Blade Servers category, the mindshare of Cisco UCS B-Series is 7.3%, down from 8.8% compared to the previous year. The mindshare of Lenovo Flex System is 4.5%, up from 3.1% compared to the previous year. The mindshare of Supermicro SuperBlade is 7.8%, up from 5.7% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Blade Servers Mindshare Distribution
ProductMindshare (%)
Cisco UCS B-Series7.3%
Supermicro SuperBlade7.8%
Lenovo Flex System4.5%
Other80.4%
Blade Servers
 

Featured Reviews

MB
Head of IT Operations at NCC BANK LIMITED
Efficient server management reduces costs and supports seamless operations
Cisco UCS B-Series has reliably sustained smooth operations without the need for significant maintenance. Its administration capabilities provide easy access to performance reports, logs, and utilization data, which are essential for effective server management. Additionally, the integration capabilities are seamless, and the power consumption and heat generation are low, resulting in reduced cooling costs and increased financial benefits.
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…
Gergely Lakos - PeerSpot reviewer
DevOps Engineer at a tech services company with 51-200 employees
With many servers in one, these blade servers are easier to manage
The service could be improved by faster servers, more widely available VMs, and more storage in one place. Then, in the event of a blade failure, we could start our VMs on another blade in a couple of minutes. This is why we wanted to buy storage. But now, we want to buy a twin server with 24 VMware discs to create test storage. The next product release should allow more servers to be controlled simultaneously.

Quotes from Members

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

Pros

"The Dual Fabric design allows for online/in-service upgrades during production with no impact."
"The stability of Cisco UCS B-Series is impeccable, as it has been running smoothly without any need for maintenance."
"This host-provisioning solution gives us peace of mind, SLA level, and ease of management from the operation team."
"Easy to deploy, scale and expand based on a number of server range available, with centralization for different resources including network, compute and storage."
"The admin interface is very intuitive."
"I can recommend the solution wholeheartedly to other organizations."
"Cisco UCS B-Series is scalable."
"The stability, in general, has been amazing; there are no bugs or glitches, it does not crash or freeze, and Cisco is extremely reliable and offers good performance."
"The stability and speed are always good. The processor is good and it's still working with our loads."
"The functionality is reliable and requires minimal support."
"It's stable, it works well, and we have had no problem with it for a long time."
"Flex System's best features are its performance and stability."
"We are using Lenovo Flex System for our internal platform where we store our operating systems, Windows, Linux, and VMware, and then virtualize our machines."
"We use the solution as a compute model to run the compute load on servers."
"The Lenovo Flex System is very stable."
"The Lenovo Flex System is very stable."
"We use Supermicro Superblade servers because we are a software engineering company and these competitively priced blade servers with many servers in one are easier to manage."
"I think the IPMI is a really good feature."
"The initial setup was straightforward."
"So far, the solution seems to be very stable."
"It's an affordable and scalable device that fits requirements for a SMB with a tight server budget."
"The ability to save resource is a key feature."
"This solution can be used for various applications, high-performance computing, software as a service, cloud service, and data centers."
 

Cons

"Integration with the storage to get a heatmap of what's going on in the storage site could be improved -- the dashboard, that kind of thing."
"Cisco UCS B-Series competitors have similar features as they do, Cisco needs to make some changes to make their offering better."
"The graphic code that UCS can support is limited and less accessible than other systems."
"It needs a better UI. Cisco makes a great product, but doesn't know how to make a UI."
"The initial setup and service profile deployment can be tricky and should be improved for ease of use."
"The management interface needs a lot of improvement. As it is right now, it's a pain to use."
"Pricing with Cisco is very high. The price is very inefficient."
"Cooling. It is hotter than HP blade servers."
"The installation was not easy."
"I had some difficulties with the initial setup."
"The solution's firmware and driver upgrades are a bit difficult."
"The user interface needs improvement because they have an application from which we have to manage the whole system and all of the infrastructure."
"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 price of the Lenovo Flex System could improve."
"The product could improve its integration capabilities."
"Flex System's integration with the XClarity Management System could be improved."
"The solution does not scale well."
"There is a lack of support for fiber channels currently that needs to be added."
"They need to improve their delivery time. It takes too long right now."
"I think the Supermicro blade servers are not the best. They could improve in scalability but are not really scalable right now."
"There is a lack of support for fiber channels currently that needs to be added."
"Supermicro blade servers are not the best. They could improve in scalability but are not really scalable right now."
 

Pricing and Cost Advice

"The price of this solution is a little bit higher, but given that this system is Cisco, it feels more secure and dependable."
"Cisco UCS B-Series is an expensive solution."
"Every three years, I need to renew my license and support the product...Every time I have to opt for the renewal of the license, I am shocked to learn about the increase in the price of the product."
"We have to pay a monthly licensing fee for the solution."
"A physical licensing fees needs to be paid."
"The product cost is high."
"UCS is expensive, and we will be migrating to the cheaper HP servers."
"Pricing with Cisco is very high."
"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 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 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."
"The product is not expensive."
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Top Industries

By visitors reading reviews
Financial Services Firm
12%
Marketing Services Firm
12%
Construction Company
10%
Comms Service Provider
8%
Financial Services Firm
12%
Construction Company
12%
Manufacturing Company
11%
University
6%
Comms Service Provider
13%
Financial Services Firm
13%
Manufacturing Company
11%
Healthcare Company
10%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business21
Midsize Enterprise15
Large Enterprise41
By reviewers
Company SizeCount
Small Business3
Large Enterprise7
No data available
 

Questions from the Community

What is your experience regarding pricing and costs for Cisco UCS B-Series?
Comparing Cisco UCS B-Series with traditional servers, while its initial cost may be slightly higher, it is not as ex...
What needs improvement with Cisco UCS B-Series?
There is a need for Cisco UCS B-Series to evolve and scale vertically, particularly with the increasing data demands ...
What is your primary use case for Cisco UCS B-Series?
The Cisco UCS B-Series servers are used to run backend databases ranging from small, medium, to large, running differ...
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 fr...
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,...
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Also Known As

UCS B-Series, Unified Computing System B-Series
Flex System Blade Servers, Flex System SN Series
SuperBlade
 

Overview

 

Sample Customers

Aegean Motorway, Anilana Hotels and Resorts, Anonymous Banking Group, Artoni Transporti, Bellevue, BH Telecom, Bowling Green State University, Children's Hospital Colorado, City of Biel, Dimension Data, Dualtec Cloud Builders, Hertz, Houston Methodist, Kuwait Petroleum Italia, Lufthansa Systems GmbH & Co.KG, Outscale, Sony Corporation, Talbots
Information Not Available
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Find out what your peers are saying about Dell Technologies, Hewlett Packard Enterprise, Cisco and others in Blade Servers. Updated: May 2026.
896,202 professionals have used our research since 2012.