The document discusses high availability for the LAMP stack, emphasizing its use in custom and open-source web applications. It outlines the architectural considerations of redundancy, scalability, performance, and manageability while offering guidance on deploying solutions on physical hardware, virtual servers, and in the cloud. The goal is to eliminate single points of failure and ensure the service remains reliable and performant under varying loads.

1. High Availability
for the
LAMP Stack
LinuxTrainingAcademy.com/ha-lamp-stack

2. The LAMP Stack
L - Linux
A - Apache
M - MySQL
P - PHP

5. LAMP Stack is Widely Used
● Custom Written Web Applications
● Open Source Web Applications
○ WordPress
○ Drupal
○ MediaWiki
○ SugarCRM
○ Many, many more...

6. Ideal Architecture and Design
● Maximizes availability
● Eliminates single points of failure
● Scales without downtime
● Supportable
● Manageable

7. Architectural Considerations
● Redundancy
● Scalability
● Performance
● Manageability

8. Architectural Considerations
● Redundancy
○ How will your service tolerate failures?
● Scalability
○ How will it serve more users?
● Performance
○ How will your service remain useable under load?
● Manageability
○ How will your service be supported and managed?

9. Is the design realistic?
● Is it feasible to implement?
● Are resources available to implement?
○ Capital
○ Specialized Staff
● Is it too complex?
○ Downtime can be INCREASED due to design
complexity.

10. You will learn how to:
● Deploy on physical hardware.
● Deploy using virtual servers.
● Deploy in the cloud.
● Implement and scale.

11. You will learn how to:
● Eliminate single points of failure.
● Scale to serve an increasing number of users.
● Deploy a performant solution.
● Sleep peacefully knowing your web sites and
web applications are going to be up.

12. Learn more about
High Availability
for the
LAMP Stack
at
LinuxTrainingAcademy.com/ha-lamp-stack