Page 464 - Cloud computing: From paradigm to operation

2 Cloud Computing management

7.2.2 Detailed composition of cloud-based network management functional architecture

Management Management Management Management
service function service function service function service function
Management service FS
Network
management VM Management Management Management
application monitoring service analysis service deployment service composing
function set funtion function function function
Management controller FS

Cloud Cloud hypervisor function
infrastrcture
function set
Cloud physical element functions

Figure 3 – Detailed composition in the management service layer

Figure 3 shows the detailed composition of cloud-based network management functional architecture, which
is a refinery of the components in the management service layer as shown in Figure 2.
The cloud-based network management functional architecture is composed of the following two main parts:
cloud infrastructure function set, and the network management application function set.

The cloud infrastructure function set include cloud physical element functions and a cloud hypervisor
function above them. Cloud physical element functions provide the basic functions of computing and storage.
Cloud hypervisor function provides the functionality to manage cloud physical elements, and provide
virtualization functions above them.

The network management application function set may be further divided into two parts: management
controller function set and management service function set. Management controller function set includes
the basic supporting functions of the management platform, and also provide common functions to support
management applications. Management service function set provides management functions, which are
divided into several aspects for network management, and usually they are application specific.

7.3 The functions of each part in the architecture
In Figure 3, the functions of each component are further explained in this clause.
1) Cloud physical element function: this is the lowest level of cloud infrastructure, and it is usually
composed of the functions provided by physical servers, computers, disks, network connectors and
all other elements that form a physical cloud computing environment. They provide the basic
computing and storage resources from the physical layer.

2) Cloud hypervisor function: it is a management layer over cloud physical element functions. Cloud
hypervisor function provides the management ability of virtualized resources, for example,
creating/deleting a new virtual machine (VM), start/suspend a VM, and query/change a
configuration of a VM, etc. Cloud hypervisor function provides users virtualized resources using a
unified interface. From the users’ perspective, cloud hypervisor function can provide computing and
storage capabilities dynamically, based on users’ requirements.

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