Problems of Network Data Storage and Cloud Databases

In cloud environments, especially database manageability is a particularly important quality. This necessitates the development of database self-management technologies that have been explored in the past decade. A separate problem is the absolute scale of cloud computing, since modern SQL-oriented database systems cannot scale to thousands of hosts when placed in a cloudy context. It also requires solving the problem of ensuring the security and confidentiality of data that cannot be guaranteed due to the physical separation of machines or networks. The problem of virtualization, which is conclude the software implementation of hardware resources. There are differentiate between platform virtualization and resource virtualization. The product of platform virtualization are virtual machines - some software abstractions that themselves operate on a platform of real hardware-software systems. The purpose of resource virtualization is to combine or simplify the representation of hardware resources for the user and to get some user abstractions of equipment, namespaces, networks, etc.