Aegir is wonderful way to manage Drupal websites. Although a niche its fast becoming popular with what it can deliver. Almost everybody knows that even though Drupal solves a lot of problems with ease, its deployment at times can be tricky. Especially when the consideration of enterprise scale availability is concerned we have to ensure a lot of things are in place while talking about a professional scale service.
Aegir in itself is a Drupal website that allows you to manage other Drupal instances with a lot of ease and a simple GUI. Allowing you to easily do operating functions that normally required backend expertise. Aegir is built on a standard LAMP stack, and Drush, a command line shell and Unix scripting interface for Drupal. It extends Drush with various provisioning functions, and provides a Drupal-based front-end control-panel.
In addition to the GUI interface, Aegir can be accessed via the command line or an API, which enables the automation of many website-related system administration processes. Being based on Drupal and Drush, Aegir is highly extensible, and several contributed modules exist to extend its functionality. Aegir allows you to deploy and manage many Drupal sites, and can scale across multiple server clusters. Aegir makes it easy to install, upgrade, and backup an entire network of Drupal sites.