No more typing reviews! Try our Samantha, our new voice AI agent.

Cisco UCS B-Series vs Lenovo Flex System comparison

Why PeerSpot?
 

Comparison Buyer's Guide

Executive SummaryUpdated on Feb 3, 2025

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

Cisco UCS B-Series
Ranking in Blade Servers
6th
Average Rating
8.6
Reviews Sentiment
6.4
Number of Reviews
74
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 November 2026, in the Blade Servers category, the mindshare of Cisco UCS B-Series is 7.7%, up from 7.1% compared to the previous year. The mindshare of Lenovo Flex System is 4.2%, up from 3.6% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Blade Servers Mindshare Distribution
ProductMindshare (%)
Cisco UCS B-Series7.7%
Lenovo Flex System4.2%
Other88.1%
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…

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 stable...The solution is scalable."
"UCS has made it possible to replace and upgrade servers quickly and easily while keeping things up and running for the enterprise."
"I can recommend the solution wholeheartedly to other organizations."
"The most valuable feature is the service profiles."
"Great consolidation, high mem capacity, excellent reduction on ports."
"The hardware is easily swappable and, utilizing the boot from SAN option, you can always keep your server intact due to the service profiles."
"The scalability and easy management of the lifecycle, upgrades, and hardware failures are valuable."
"The solution is very unified and the technical team is very supportive, no help is needed from outside vendors."
"One of the most valuable features of this solution is its ease of use."
"The Lenovo Flex System is very stable."
"The most valuable feature of the Lenovo Flex System is the storage system."
"It comes at a good price. We didn't face any problems with this product."
"The product is very user-friendly and has many resources at the enterprise level."
"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."
"Flex System's best features are its performance and stability."
 

Cons

"Previously, the unified port functionality allowed the same port to function as both FC and Ethernet, however, this has now changed."
"The pricing could be improved, as it is a bit expensive solution."
"Right now, the market is rapidly transitioning to solid-state media and the Cisco options tend to be less varied and more expensive than a broader slate of products from HP, Dell or IBM."
"Perfect device, but only if the GUI is made .NET-based, it will be more great."
"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 products are technically quite bulky if you ask me. You really need to be very proficient technically to deploy it and to understand the assignment of the service profiles before you can really make the most of it."
"This product uses a converged network adapter because it is the only way to provide flexibility with both fiber and ethernet connections."
"This model does not support virtualization of the switch."
"The price of the Lenovo Flex System could improve."
"I had some difficulties with the initial setup."
"The installation was not easy."
"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."
"Flex System's integration with the XClarity Management System could be improved."
"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."
"The solution could improve by providing more integration with other platforms."
"The product could improve its integration capabilities."
 

Pricing and Cost Advice

"There is a need to pay towards the licensing costs of the solution on a yearly basis. Price-wise, it is an expensive product"
"A physical licensing fees needs to be paid."
"Cisco products are at the high end in terms of cost, but everything is included with the licensing fees."
"Cisco UCS B-Series is an expensive solution."
"Pricing with Cisco is very high."
"The cost of the Cisco UCS B-Series is comparable to HP solutions but higher than Dell solutions."
"Pricing will be based on your requirements so it is important to plan, engage, and negotiate directly with the Cisco Account Manager."
"From a business point of view, the price is on the higher end."
"The price is interesting. I am able to quote a client based on their needs and offer them either Lenovo or Dell."
"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."
"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."
"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."
report
Use our free recommendation engine to learn which Blade Servers solutions are best for your needs.
920,939 professionals have used our research since 2012.
 

Top Industries

By visitors reading reviews
Construction Company
12%
Outsourcing Company
11%
Financial Services Firm
11%
Marketing Services Firm
8%
Construction Company
14%
Manufacturing Company
11%
Outsourcing Company
9%
Financial Services Firm
9%
 

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
 

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 expensive as Oracle Exadata, making it a worthwhile investment. It pays off in the...
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 and the integration of AI, ensuring the solution remains certified and capable u...
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 different versions of RDBMS such as Oracle, SQL, MySQL. It also includes cloud databas...
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

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

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
Find out what your peers are saying about Cisco UCS B-Series vs. Lenovo Flex System and other solutions. Updated: November 2026.
920,939 professionals have used our research since 2012.