Feel The POWER!

Mohammed Al-MaraghyPresented by

RedHat Certified EngineerFedora Ambassador

All Rights are NOT reserved ... Share the knowledge

RedHat Cluster

Today's Topics

1. What is a Cluster?

2. Differences between H/W cluster and S/W cluster

3. Major software Cluster types

4. How to start with RedHat Cluster?

5. Summary

What is a Cluster?

A Cluster:

is two or more computers (called nodes) that work together to perform a task.

Details

Differences between H/W and S/W Cluster

Hard Ware Cluster Soft Ware Cluster

Expensive Hardware Inexpensive Hardware

Expensive HA Software Inexpensive HA Software

Complex Simple

Exclusive Systems All Systems

Major Software Cluster Types

1- High Availability

2- Load Balancing

3- High Performance

1- High availability (Failover Clusters) :

When any node fails the cluster automatically fail-over services

from the node down to another.

Cont. High Availability :

Used for

1- Databases

2- Fileserver

The need for High Availability Cluster (HA)

- Cost per Minute for downtime

2-Load balancing

- Front end dispatching node

- Pool of inexpensive back-end servers

- Redirect transactions so NO one system is overloaded

- Node failures in a load-balancing cluster are not visible fromclients outside the cluster.

Used For1- Dispatching Web Traffic

3-High performance

A high-performance cluster allows applications to work in

parallel, therefore enhancing the performance of the

applications.

Used For :

- Large computational problems

How to start with RedHat Cluster?

Simply download free documents from:

www.docs.redhat.com

What is a Cluster?

Differences between H/W cluster and S/W cluster

Major software Cluster types

Get starting with RedHat Cluster

Summary

Questions?

maraghy@fedoraproject.org

Contact:

@MohammedMaraghy