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Cisco UCS B-Series vs Lenovo Flex System 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:
 

Categories and Ranking

Cisco UCS B-Series
Ranking in Blade Servers
4th
Average Rating
8.6
Reviews Sentiment
6.4
Number of Reviews
72
Ranking in other categories
No ranking in other categories
Lenovo Flex System
Ranking in Blade Servers
10th
Average Rating
8.4
Number of Reviews
10
Ranking in other categories
No ranking in other categories
 

Mindshare comparison

As of January 2025, in the Blade Servers category, the mindshare of Cisco UCS B-Series is 8.3%, down from 11.4% compared to the previous year. The mindshare of Lenovo Flex System is 3.0%, down from 3.2% compared to the previous year. It is calculated based on PeerSpot user engagement data.
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Featured Reviews

Prasanth Kailasam - PeerSpot reviewer
Supports multiple hypervisors but needs to improve in the area of configuration
Speaking about how the tool can improve computing efficiency in data centers, I feel that, ultimately, there are other kinds of hardware or servers that Cisco provides. From a management perspective, certain aspects can be incorporated to help users understand their current standing. It would be good if certain larger configurations could also be made suitable for the tool to suit the needs of multiple customer bases. For virtualization needs, the product works well. I have dealt with certain virtualization environments using - Cisco UCS B-Series. As of now, the tool is fine. Cisco UCS B-Series recently got registered with Nutanix, one of the market's HCI platforms. Nutanix can run on Cisco. Cisco UCS B-Series' direction is right. I don't think any further improvement is required in the tool right now. The integration capabilities of the product are okay. I haven't seen any challenges when installing the tool in an environment. I think that the tool supports multiple hypervisors. Speaking about the feature that has improved our company's data center operation, I would say that the Cisco brand name provides our organization with the benefits we need from the product. I believe that manageability is one crucial aspect of the tool, considering that it is pretty easy to manage. Performance-wise, some improvements have been introduced in Cisco UCS B-Series. Whenever somebody evaluates and goes ahead with some traditional setup in their environment, along with HP and Dell, they can also consider Cisco as a part of it because it has become more cost-effective and competitive presently. Networking-wise, the tool is pretty strong, and it operates as a brand that actually helps with the support offered to customers. The support offered by Cisco adds a lot of confidence for the clients. I feel that Cisco is doing a lot of innovation in order to offer scalability and flexibility to adopt future technologies. I believe Cisco users might see a lot more solutions that get introduced in the market that might become more and more compatible with many products in the future. In the future, I think that users will see AI and other related aspects run pretty well in a Cisco environment. I would say that the benefits and value of the use of the product stem from the brand name attached to Cisco products. Cisco's support when you use Cisco UCS B-Series is good. In the networking space, Cisco has been a leader for a very long time, and the same kind of credibility is what you can expect when you consider Cisco UCS B-Series. Considering the availability of the products from competitors, I rate the tool a seven out of ten.
Syed  Ibrahim - PeerSpot reviewer
Provides a high initial ceiling before upscaling is required, user-friendly and rich in resources, but has occasional stability issues
The solution should come with cloud native applications to prepare for cloud based solutions. 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. The level of customer support needs to be improved. There is currently an issue with Lenovo switching out SAN switches from the chassis, which will cause problems for people who already have a set up with the SAN switch connected to the central storage. This could require an entirely different network, adding an additional cost for the user.

Quotes from Members

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

Pros

"The scalability is very good."
"I like that it's very manageable very easy to use and configure. I am not an expert, but the graphic user interface is quite simple very easy to use. It's a complete solution."
"The Boot from SAN function is good because using OTV, we can boot the device from any remote location."
"The most valuable feature of the solution stems from the fact that it is easily scalable."
"Great security and functionality."
"Dell has a huge portfolio of products."
"The GUI makes is simple to use and deploy."
"In terms of the flexibility of the tool to adapt to technology needs, I think it is a very good solution."
"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 initial setup is straightforward."
"The functionality is reliable and requires minimal support."
"The most valuable feature of the Lenovo Flex System is the storage system."
"The Lenovo Flex System is very stable."
"The stability and speed are always good. The processor is good and it's still working with our loads."
"We use the solution as a compute model to run the compute load on servers."
 

Cons

"The cost is expensive and has room for improvement."
"Dell should address the issue of direct support and spare parts availability in our region."
"The initial setup process is complex."
"Compared to the deployment of servers such as Dell XCDs, the deployment of UCS servers is more complex. They take longer to deploy."
"The monitoring features and integration with other products can be improved."
"It should be more user-friendly."
"The price of the solution could improve."
"The solution is difficult to set up."
"The solution could improve by providing more integration with other platforms."
"The most valuable feature of the Lenovo Flex System is the storage system."
"I had some difficulties with the initial setup."
"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 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."
"Flex System's integration with the XClarity Management System could be improved."
"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."
"The solution's firmware and driver upgrades are a bit difficult."
 

Pricing and Cost Advice

"Cisco UCS B-Series is an expensive solution."
"From a business point of view, the price is on the higher end."
"The type of service level purchase will determine the level of support response that you receive from Cisco."
"Considering our market, I rate the pricing of Cisco UCS B-Series as a six."
"The pricing for Cisco is less than for the HP Proliant series."
"The cost of the Cisco UCS B-Series is comparable to HP solutions but higher than Dell solutions."
"UCS is expensive, and we will be migrating to the cheaper HP servers."
"Compared to the more in-demand hyper-converged environments such as Nutanix or DVX rail, Cisco UCS B-Series is even more costly due to the expensive fabric interconnects."
"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."
"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."
"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."
"There is a one-off payment to buy the equipment and the support is purchased annually."
"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."
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Top Industries

By visitors reading reviews
Computer Software Company
19%
Financial Services Firm
13%
Government
9%
Manufacturing Company
9%
Financial Services Firm
25%
Computer Software Company
17%
Government
12%
Real Estate/Law Firm
5%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
 

Questions from the Community

What do you like most about Cisco UCS B-Series?
The most valuable feature of the solution stems from the fact that it is easily scalable.
What is your experience regarding pricing and costs for Cisco UCS B-Series?
The pricing is competitive. While the UCS price was high before, it is more competitive now.
What needs improvement with Cisco UCS B-Series?
If we could get more reference architecture available on the portal, it would be helpful in making decisions. Also, the content should be more extensive, especially technical content.
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
 

Learn More

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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
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Find out what your peers are saying about Cisco UCS B-Series vs. Lenovo Flex System and other solutions. Updated: January 2025.
831,265 professionals have used our research since 2012.