53
Private Cloud infrastructure.
Private Cloud services are exclusively available resources, which are
independent in terms of location (on‐premise/off‐premise), and more like
traditional IT infrastructures in terms of security, legal considerations and
availability.
In a true private Cloud an entity’s data should be physically separated from
all other entities data, and hosted on hardware platforms that are
independent from all other entity’s hardware platforms. When considering
a Private Cloud for security and governance reasons it is important to
understand from your Cloud provider, that either the entire hardware
infrastructure is independent including networks and storage devices or if
only the physical server hardware is independent.
With a Private Cloud, the customer rents the technical equipment (IT
components, hardware, software, etc.) in order to provide Cloud services
using an efficient, standardised, virtualised and a secure IT environment
modeled on Cloud design criteria. The enterprise keeps full control over
which authorised persons/groupsuses the services in this infrastructure, in
what way and when. In other words "Private Cloud" relates to providing
Cloud computing services for predefined users and not to the public.
Management and operations are handled within the organisation or by the
Cloud provider. Services are offered on separate networks and most of the
time connected into normally enterprise own security domain.
Benefits of the Private Cloud model:
Private Clouds support customisation and can compensate for the
security and compliance drawbacks of Public Clouds
The Private Cloud concept can allow for efficient Mobile Users and
Bring your own Devices.
Disadvantages of the Private Cloud model:
The major disadvantage of a Private Cloud solution is that the costs are
higher. Upfront costs, if deployed on‐premise, cannot be fully converted into
operating costs because the enterprise has to purchase or establish private
Cloud components in advance and these costs do not scale with actual use
and load. Therefore, part of the Cloud computing benefit sought by the
enterprise is lost. Despite this, the use of Cloud methods in a private
environment can still offer considerable savings potential in the scope of the
overall concept because other Cloud benefits such as self‐service,