The purity of Cloud hosting is that continuously available and expansion highly flexible. However, it is far beyond the control of the user how this is achieved and maintained. This limits security and control as it is not possible to be sure where data is stored at any given time as it could be spread across any number of cloud machines.

Benefits of Cloud hosting:
• High availability.
• Ideal for unpredictable traffic.
• Ideal for unpredictable resource usage.