This document summarizes key aspects of data centers, including their history, components, requirements, physical infrastructure, and modular approaches. A data center houses computer systems and associated equipment to provide data storage and Internet connectivity solutions. It discusses the core, aggregation, and access layers that make up their physical network architecture. Modern data centers require careful facility design for layout, power, cooling, and security, as well as robust system and service management infrastructures. Modular and containerized approaches provide scalable and portable alternatives to traditional building-based data center facilities.

1. By:-Dhanalaxmi.Nadar (Roll.no-20 new sies)
Vairavi.Vanniyar (Roll.no-19 old sies )
Presentation On

2. A Data Center or computer centre
(also DC) is a facility used to house
computer systems and associated
components, such as
telecommunications and storage
systems.
It is also known as server rooms in
general language

3. • Data centers have their roots in the huge computer rooms of the
early ages of the computing industry.
• Companies needed fast Internet connectivity and nonstop operation
to deploy systems and establish a presence on the Internet.
• .Many companies started building very large facilities, called
Internet data centers (IDCs), which provide businesses with a range
of solutions for systems deployment and operation.
• Data centers are typically very expensive to build and maintain.
History

4. The old computer data center at NASA’s jet propulsion
lab

5. Various aspects of the data centers include:
•Facilities: layout, power/cooling, physical security
•System infrastructure: servers, networking,
storage, and security;
•Service management and operation considerations
REQUIREMENTS FOR MODERN DATA CENTERS

6. • A data center can occupy one room of a building or
more floors or entire building.
• Most of the equipment is often in the form of servers
mounted in 19 inch rack cabinets.
• Three elements of the building of data center are
facility
1. topology design (space planning),
2. engineering infrastructure design (mechanical
systems such as cooling and power)
3. technology infrastructure design (cable plant).
• The aim is to create a master plan such as number, size,
location, topology, IT floor system layouts, and power
and cooling technology and configurations.
DATA CENTER PHYSICAL INFRASTRUCTURE

7. Three Elements of Data Center
Topology design
Engineering
infrastructure
design
Technology
infrastructure
design

8. The data center architecture is based on a three-layer approach.
CORE LAYER
AGGREGATION LAYER
ACCESS LAYER

9. Data Center 3.0 Infrastructure Portfolio

10. • The core layer provides the high-speed packet switching backplane
for all flows going in and out of the data center.
• The core layer provides connectivity to multiple aggregation
modules and provides a resilient Layer 3 routed fabric with no
single point of failure.
• The core layer runs an interior routing protocol, such as OSPF or
EIGRP, and load balances traffic between the campus core and
aggregation layers
Data Center Core

11. Data Center Aggregation Layer
• The aggregation layer is the boundary for the data center
infrastructure.
• In common designs, the aggregation layer is also the
connection point for data center firewalls and other
services.
• Thus, it consolidates traffic in a high-speed packet
switching fabric and provides a platform for network-
based services at the interface between the data center.

12. Data Center Access Layer
• This is the lowest of the three layers of the architecture,
where all servers physically attach to the network.
• The storage path can use Ethernet or Fibre Channel (FC)
interfaces
• The back-end high-speed fabric and storage path (10 GE)
can also be a common transport medium when IP over
Ethernet is used to access storage. In this design SAN is
the only recommended storage networking which requires
the FC connectivity.

13. • A Modular data center is a alternative to traditional data centers.
• A Modular data center can be placed anywhere data capacity is
needed.
• Modular data center systems consist of purpose-engineered
modules .
• It offer scalable data center capacity with multiple power and
cooling options.
• This can be shipped anywhere in the world, and can be added or
integrated in any other module.
• Modular data centers typically consist of standardized
components, making them easier and cheaper to build.
MODULAR DATA CENTER

14. Containerized data centers
In a portable data center the entire data center equipments are fitted into a
Standard shipping container which can be moved by a truck onto a ship.

15. Flexible Data Center is constructed of sheet metal components
that are formed into four data center halls linked by a central
operating building.
Flexible data center