Information centers
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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.
Information centers
- 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