You may already be familiar with Amazon S3, the most popular solution for cost effective storage services nowadays. You will need it when you are looking for:

• Low cost storage: it happens to be my case, when I implemented a Drupal based web app for a local governmental authority. The app is used by branches from all provices of the country, and they usually upload a large amount of data (documents, photos, scans etc ...) regularly. Using the app server's storage is too expensive. So I converted the Drupal file system to Amazon S3, leaving only the core and modules on the app server.
• Fast loading: many bloggers have used S3 to store their photos, videos, audios and files, for better serving their readers. As customers are from all over the world, saving the multimedia content to S3 will let them access them much faster.
• And many more benefits

In this tutorial, we will show you how to convert the Drupal 7 file system to Amazon S3 and sync all existing files to S3 Storage.

1. Preparation

You will need to run several client programs like drush and awscli. So if your site is on a shared hosting, you are not able to install and execute them. Pls download it to your local host and configure it there. After that you can upload to your shared hosting.

The techniques that I use in this tutorial are:

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