Automatic WordPress Backup (to Amazon S3)

Today, I tried another WordPress plugin called “Automatic WordPress Backup”. This plugin will help blog owners to create backup remotely to Amazon S3 service. Since I’m using it and pretty satisfied with the billing usage, I installed it at some WordPress-powered blogs I maintain.
I use one of the available buckets under my account. For this bucket, I set its ACL (Access Control List) to private, of course. After this plugin installed and activated, I only needed to put my Access Key ID and Secret Access Key.
I decided not to include all files for my backup. I only need the database and uploaded contents. After the settings were saved, I simply hit the backup button. The process depends on the disk and database usage. I found that it was pretty fast. One of my backup files was around 300 MB, and it only took less than 5 minutes to complete the process. Also, the backup file was compressed. This should be useful to cut the usage process as you only need to store a single file for each backup.
The backup files will be automatically delivered to my Amazon S3 bucket and when the process completed, I can see the backup history. To download the backup, I only need to click on the backup links.
The backup links are built using pre-signed URLs so that only the account holder (or someone who knows the URLs) can download them.