Exer 6 (Part I): Intro on DRBD + Making a Dynamic Website

I. DRBD

DRBD or Distributed Replicated Block Device refers to block devices designed as a building block to form high availability (HA) clusters. - drbd.org

It can be used as the basis of:

• Conventional and shared disk file systems
• another logical blocking device
• applications which require direct access to a blocking device

-Wikipedia

Do visit drbd.org to learn more on DRBD. Also, please read my succeeding entries about installation and configuration of DRBD, and integration of it with Heartbeat.

II. Dynamic Website

After reading on DRBD, we created a dynamic website using PHP and mySQL. This website will be used for DRBD on the next parts of this exercise.

First, we installed all the applications that we needed:

• apache2
• php5
• mysql

Then, we made a database of users. It has only one table named user with column names username and password.

There are four functionalities /parts for this website: add user/sign up, log in, edit account, delete account.
Here are some screenshots of the website. Unfortunately, we lost the other screenshots.