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1. RedHat Cluster
Feel The POWER!
Presented by
Mohammed Al-Maraghy
RedHat Certified Engineer
Fedora Ambassador
All Rights are NOT reserved ... Share the knowledge

2. 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

3. What is a Cluster?

4. Details
A Cluster:
is two or more computers (called nodes) that
work together to perform a task.

6. Differences between
H/W and S/W Cluster

7. Hard Ware Cluster Soft Ware Cluster
Expensive Hardware Inexpensive Hardware
Expensive HA Software Inexpensive HA Software
Complex Simple
Exclusive Systems All Systems

8. Major Software
Cluster Types

9. 1- High Availability
2- Load Balancing
3- High Performance

10. 1- High availability (Failover Clusters) :
When any node fails the cluster automatically fail-over services
from the node down to another.

11. Cont. High Availability :
Used for
1- Databases
2- Fileserver
The need for High Availability Cluster (HA)
- Cost per Minute for downtime

12. 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 from
clients outside the cluster.
Used For
1- Dispatching Web Traffic

13. 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

14. How to start with
RedHat Cluster?

15. Simply download free
documents from:
www.docs.redhat.com

16. Summary
What is a Cluster?
Differences between H/W cluster and S/W
cluster
Major software Cluster types
Get starting with RedHat Cluster

17. Questions?

18. Contact:
maraghy@fedoraproject.org
@MohammedMaraghy