This document provides an overview of information centers. It discusses what an information center is, why they are needed, their key components, and clustering techniques. An information center is a secure location that stores an organization's server data. It provides security, connectivity, and cheaper maintenance than individual servers. Critical components include air conditioning, uninterruptible power supplies, rack and plate servers. Clustering involves connecting servers to share data and requests. The document describes active-active and active-passive clustering, and data mirroring across server clusters.

1. Information
centers
By :
Miral & Mekki

2. Enta tany !!!! :D

3. Agenda !!
 What is Information Centers?!!
 Why do we need Information Centers ?!!
 Components of Information Centers
 Clustering :
 Active-Active Cluster.
 Active-Passive Cluster.
 Mirroring.
 Summary (Video)!!!

4. What is Information centers?!!
 Informationcenter is a place that
contains the data of the organization
stored on servers.
 Simplythe information system is like the
place where we can keep all the data of
the organization safe and accessible.

5. Why do we need them?!!
 Security.
 Connectivity.
 Maintenance.

6. Security
 More secure to have all the servers in one
place and put physical security over
them.
 Also no one has ever succeeded in
hacking an Information Center
from outside.

7. Connectivity
 Connectivity
would be easier than
placing each server on a deferent site
and connect them together.
 Connection is established using Fiber
optics or twisted shielded pair cable.

8. Fiber Optics & Twisted Shield

9. Maintenance
 Cheaper than maintaining every server
alone at it own site!!!

10. Components of Information
Centers
 Air Condition.
 Uninterruptible Power Supply (UPS).
 Servers:
 Rack servers.
 Plate Servers.

11. Air Conditioners
 The most popular brand is Thompson.
 They must stay up and running (working)
24/7.

12. UPS
 Very Important and Expensive.
 Provides fail over when the electricity
goes off.
 Itprovides the servers with power
to save their sessions and shut down
safely.

13. Servers
 The most important component.
 Servers are the data holders.
 Two types of servers are used in
Information Centers:
 Rack servers.
 Plate servers.

14. Rack servers

15. Plate servers

16. Clustering
 Cluster:
when two or more servers are connected to
each other physically or wireless they said to
be a Cluster.
 Clustering:
Sharing Data and Requests over a Cluster.
 We will discuss two types of clusters :
 Active-Active Clustering.
 Active-Passive Clustering.

17. Clustering

18. Active-Active Clustering
 Allservers of the cluster are up and
running.
 The incoming request goes to the server
with the minimum number of requests.
 Thiscluster provides high availability But
also has a lack of reliability.

20. Active-Passive Clustering
 Also called the Fail Over Cluster
 Only one server is up and running All other
servers on the cluster is idle.
 When the up server goes down other server
fail over and take his place.
 This cluster provides high reliability and
availability.

22. Mirroring
 Techniqueused to keep the data
updated in all the servers on the cluster.
 Alsoused to keep back up’s of the data
in case of the server goes down or the
power goes off.

23. Mirroring

24. Summary

25. Questions?!!!

26. Thank you!!
@muhammed_mekki