Virtualization and cloud computing
The essence of virtualization is to divide existing computer resources into several computer resources through virtualization technology, these computer resources are independent of each other.
The ultimate goal is to improve computer utilization and maximize computer flexibility.
The simplified IT infrastructure and resource management methods help enterprises reduce IT resource overhead, integrate resources, and save costs.
Platform Virtualization |
Server Virtualization |
Software virtualization-resident architecture-VMware Workstation |
Hardware virtualization-native architecture-hypervisor |
Desktop virtualization |
Resource virtualization |
Storage Virtualization |
Network Virtualization |
Application Virtualization
Presentation Layer Virtualization
VMware Service Virtualization leader, founded in 1998, is headquartered in Palo Alto, USA's California welfare region. It is the main controlling shareholder of EMC, a giant in the memory industry.
Microsoft acquired connectix in 2003 before obtaining the virtualization technology, and then officially entered the virtualization field.
Citrix application virtualization leader, founded in 1989, headquartered in Nevada, USA
Other virtualization Manufacturers
Oracle, RedHat, and parallels
1. features:
On-demand service resource pooling Based on interconnected networks
High-availability resource control
2. Cloud Computing Architecture
Infrastructure as a service (IAAS) Infrastructure as a service
Platform as a service (PAAs) platform as a service
Software as a service (SAAS) software as a service
These three layers: for users, they are independent of each other, because the services provided by each layer are different. From a technical perspective, layer-3 services are mutually dependent, but not interdependent.
3. Cloud Computing Model
Major public clouds in the public cloud world: Microsoft's windowsazrue, goolge's apps, Amazon's AWS
Advantages: low cost, high flexibility, and large-scale application
Advantages of private cloud: high data security and high Resource Service Quality
Hybrid cloud public cloud and private cloud
Advantages: users can enjoy the privacy close to the private cloud and the cost of public cloud, and can quickly access a large number of computing capabilities located in the public cloud to meet their needs.
The "inspur" proposes that the industry cloud should be established and maintained by organizations that play a leading role or master key resources within the industry or a region, and should be either open or semi-open, provides paid or free services to the industry or relevant organizations and the public.
4. Relationship between cloud computing and Virtualization
There is no inevitable relationship between the two. To achieve cloud computing, there is no need for virtualization. However, to improve resource utilization and facilitate management, cloud computing still needs virtualization. virtualization is only one way to achieve cloud computing.