Cisco UCS Tutorial

Cisco UCS is a magnificent and amazing server platform that is an extraordinary fit for virtualization. It is significant in light of the fact that Cisco UCS has a principal distinction between most other server platforms you are accustomed to function with. In this Cisco UCS tutorial, we will learn about its components and architecture

Cisco UCS Tutorial - Table of Content

What is Cisco UCS?

Cisco Unified Computing System is a coordinated computing foundation with plan based administration to robotize and quicken sending of every one of your applications, including cloud computing and virtualization, scale-out and uncovered metal remaining workloads, and in-memory examination, just as edge computing which underpins far off and branch areas and gigantic measures of information from the Internet of Things (IoT). This record gives an outline of the primary segments of Cisco UCS: unified administration, unified registering assets, and unified. Since the framework was first declared, we have joined the top level of server sellers with in excess of 85 percent of Fortune 500 organizations putting resources into Cisco UCS. The framework has set in excess of 150 world execution records, all filling in as demonstration of initiative and commitment to client focused advancement.

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Why Cisco UCS

The challenge for an IT association is to address the issues of the computerized business change while supporting the conventional, solid applications that are the establishment of your business. The digital business change has arrived, and it is making new requests on IT associations: 

  • Applications: Modern applications are turning out to be not so much solid but rather more like natural substances that develop and shrivel using particular, conveyed microservices. It decreases reliance on customary IT foundation and places new requests on IT associations regarding the enormous number of endpoints to handle an adaptable framework expected to help them.  
  • Management: The principal issue for IT associations is overseeing foundation at a scale and having the option to coordinate assets to application prerequisites, and deal with the various kinds of framework in a basic, comprehensive design. 
  • Location: Customary IT associations could once uphold and deal with their customers and applications securely inside the glass dividers of an on-premises data server. Presently they should uphold customers, applications, and remaining tasks at hand in broad daylight, handled, and private cloud conditions.

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Cisco Components 


Cisco UCS Fabric Interconnects 

The Cisco UCS Fabric Interconnect is used to associate your Cisco UCS Servers to your organization. The Fabric Interconnects are the place where Cisco UCS Manager is operated from, that is the software ingredient for Cisco UCS. At the point when you are signing into your Cisco UCS framework, you are really signing into Cisco UCS Manager through the Fabric Interconnects. Every Fabric Interconnect obviously has a remarkable IP address, however a VIP (virtual IP address) is made for the framework in general. Regularly, you may simply hear these alluded to as textures. Typically, we call one Fabric Interconnect Fabric A, and the other Fabric B. You can design the personality of a portion of the ports. For the most part, there are three kinds of ports on a Fabric Interconnect:

  • Ethernet Ports : Ethernet or FCoE connectivity
  • Universal Ports : Function as Ethernet or Fibre Channel ports
  • Uplink Ports : Uplink to the Cisco Nexus Infrastructure

Cisco UCS VIC (Virtual Interface Card)

Consider the VIC as the Cisco UCS Network card, aside from one small detail. It is named a VIC not NIC on the grounds that there is amazing deliberation and virtualization layer influencing everything here. UCS Manager can be utilized to cause the VIC to show up as up to 256 virtual gadgets. In a rack server design, the VIC card would interface either to the Fabric Interconnect or a Fabric Extender (FEX). In a blade server setup, the VIC card associates with the FEX that lives in the rear of the blade chassis, it can't interface straightforwardly to the Fabric Interconnect.


Cisco UCS Blade Server Chassis

The Cisco UCS Blade Server Chassis is called the Cisco UCS B5108 chassis. It gives energy to your blade servers, and has a slot to include FEXes for better connectivity. There are 8 slots in a UCS B5108 Chassis.

Cisco UCS FEX (Fabric Extender)

There exist two types of Fabric Extenders or Cisco FEXs in the Cisco UCS:

  • Blade Chassis FEX: In the event that you are utilizing blade server, you should have FEXes in its rear to give network to the Cisco UCS framework. The FEXes are associated with the Fabric Interconnects. There are two FEX spaces in the Blade Chassis, one for A side availability and one for B side network. FEX An associates with Fabric Interconnect A, and FEX B interfaces with Fabric Interconnect B. The Fabric Interconnects are not cross associated. The failure of a FEX or Fabric Interconnect is dealt with at the software layer, by either the product operating on your blades, or by UCS Manager.
  • Rack Mount FEX: This works with a comparable guideline as the Blade Chassis FEX, aside from it being mounted in a rack. The use of this is to include more ports to your Fabric Interconnect so that you can exploit the Cisco UCS's maximum capacity. 54 ports can get used up before long, and this is Cisco's response to that issue.

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Cisco UCS B-Series Blade Servers 

A blade server is an edge worker. If you find a B before a UCS Server name, for instance the Cisco UCS B200 M5, you naturally realize that model is a blade server. It includes everything a server ought to, and is provided force and network by the Cisco UCS 5108 Blade Chassis. The Cisco Blade Chassis additionally includes a VIC card for network. There are single width, twofold width, and double width twofold stature blades accessible. They are put into the Cisco UCS 5018 edge case horizontally, so with the 8 accessible slots you can have 4 twofold width blades, 8 single width blades, or 2 double width twofold stature blades.

Cisco UCS C-Series Rack Servers

A rack server is a rack server which includes all that it ought to. On the off chance that you see a C before a UCS Server name, for example, the Cisco UCS C220 M5, you realize you are operating with a rack server. It includes a VIC card (or cards) for availability, and interfaces straightforwardly to the Fabric Interconnect or a Rack Mount FEX.


Cisco UCS Architecture


  • Cisco Nexus Switch: The Cisco UCS Fabric Interconnects needs a Nexus switch for the upstream network. 
  • Cisco UCS 6454 Fabric Interconnects: The Fabric Interconnects interface with the remainder of your current circumstance through uplink ports to the Nexus switches. You should decide the number of uplinks to utilize depending on your transfer speed prerequisites. To interface with the Cisco Nexus switches we utilize vPCs or virtual PortChannels which is a PortChannel between the two Nexus switches you are associating with to give excess. On the off chance that one of the upstream Nexus switches comes up short, your UCS System will in any case be operational. 
  • Cisco UCS 5108 Blade Chassis: It gives force and availability from your blade’s VIC card to the Fabric Extender, that thus interfaces with the Fabric Interconnect. 
  • Cisco UCS 2208 Fabric Extenders: The Fabric Extender is the thing that permits your blade to interface with the Cisco UCS Fabric Interconnects. These types of models explicitly are viable with the blade case and Fabric Interconnect we are utilizing.
  • Cisco UCS VIC 1440: The VIC for the blade server can be cut up into up to 256 virtual connectors. You can't utilize a similar VIC in a rack mount server similarly as you can using a blade server. While they give a similar usefulness, the models are unique. 
  • Cisco UCS B200 M5 Blade Server: The Cisco UCS B200 M5 blade server is an extraordinary workhorse, and totally adjustable. Whenever everything has been racked, stacked, and associated, the subsequent stage is to interface with the Cisco UCS by means of UCS Manager and start arrangement.

TOp 30 frequently Asked Ciscon UCS Interview Questions

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In this tutorial we have discussed how Cisco UCS Architecture is and you can use it according to the organization’s requirements. The role of blade servers, rack servers and many other components are mentioned.

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Saritha Reddy
Saritha Reddy
Research Analyst
A technical lead content writer in HKR Trainings with an expertise in delivering content on the market demanding technologies like Networking, Storage & Virtualization,Cyber Security & SIEM Tools, Server Administration, Operating System & Administration, IAM Tools, Cloud Computing, etc. She does a great job in creating wonderful content for the users and always keeps updated with the latest trends in the market. To know more information connect her on Linkedin, Twitter, and Facebook.