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