Like a trend, and now no one does not talk about the cloud, even more in the early years of virtualization. In fueled by major IT vendors and Internet companies competing to build cloud users and cloud, a few years even if a small-scale enterprises or units may also manages the "multi-cloud."
However, due to the construction and management of dispersed, often difficult to find someone who can clear and comprehensive explanation of each cloud characteristics and differences, often only know nothing of its business, which designs the existence of an excessive waste of resources, who may be responsible for other issues a bunch of nobody knows for sure, the only certainty is the increased difficulty and a lot of manpower management.
Let me define the cloudy, cloudy satisfied that the terms and value of the tube and so on are introduced, clear away some of the basic concepts of understanding deviation.
How to define the distinction cloudy
IaaS cloud
Said IaaS cloud in fact not rigorous, but one kind of metaphor borrowed the concept of emphasis on providing infrastructure resources of the cloud platform type, typical business units have self-built engine room and the type of traditional IDC data center hosting, IaaS defined as more commercial promotion or project need of names.
This cloud in early general only room facilities, surrounded by power, infrastructure services for hardware devices, such as machine on the shelves after power delivered to users, while supporting some daily hardware alarm notification and inspection services.
With the popularity of virtualization technology, when has the ability to store multiple computing nodes and melt into a pool after the original machine immediately upgraded to a bunch of X86 we call "cloud platform", like water and electricity as elastic call. This is a defined technical level clouds.
PaaS cloud
As the industry gradually expand the scale of business transformation and user management services made more demands, such as the resource services in addition to the virtual machine, you also need database services, middleware services, large data network services, security services, as well as some advanced services , micro-services, Devops services, in addition to the hardware state management service based surveillance, but also business surveillance systems, centralized resource management, automated operation and maintenance operations, processes send a single, reporting and portals and so on.
IDC found that the traditional "IaaS cloud" has no competition, virtualization alone can not satisfy the user, to coincide with the gradual rise of the Internet, the industry gradually found a set of required features for cloud "operating system", at this time the most representative Openstack It came into being.
Head and various Internet operators are customized based on its proprietary PaaS cloud services, such as Huawei typical cloud, Tencent cloud, telecom cloud. They first force in the field of public cloud, private cloud gradually sink to even put more fashionable name of the first such data sets, application sets, AI in Taiwan. This is a mask underlying infrastructure, focus on differentiated services defined cloud.
Cloud industry
We often hear from the mouth of a user such as cloud-government, police clouds, cloud education, more customization is based on the industry IaaS and PaaS cloud infrastructure, configure different levels of resources and the types of services for business applications industry characteristics, more multi cloud from one definition of business.
Cloud area
There are also a number of provinces and cities to counties, or directly to the unit named after cloud, nature probably also similar to IaaS and PaaS clouds, repeat them here not to proceed.
Cloudy how the environment nanotubes
When we are about to separate a variety of diverse complex cloud platform area, it was soon faced with a series of how unified management of issues, including:
Between public and private clouds, cloud platform between different manufacturers are not able to unify the management?
If you can control, what granularity tube to be initiated more than a one-stop virtual machines on the cloud platform to create, switch, snapshots it?
As long as the cloud was not taken over the platform, all virtual machines on the system that are uniform nanotubes together?
Cloud platform itself, the virtual machine system components and PaaS service components: To answer this question, we need to open cloud platform analysis into three parts.
cloud platform
Is essentially a set of operating system for the cloud, similar to Windows, Linux upgrade, most of us are using the factory-commercialization of value-added products and packaging platform, which offers a variety of convenient services, such as viewing a resource pool of capacity , multi-tenant isolation authorization, additions and deletions to move a virtual machine backup, these are internal curing platform features that can only be called by the public API manufacturers, or rely only on the basis of a small amount of open interfaces and network access (some manufacturers may) be able to drive the action is very limited, which is an objective technical limitations.
Virtual Machine System Components
That platform virtual machine components of the operating system, database, middleware and application delivery (strictly speaking virtual machine hardware is also part of the cloud platform), and essentially no difference with their physical machine, virtualization platform delivered , substantially independent of each other and the underlying platform, the pipe can still be satisfied by a conventional method, such as Agent.
PaaS service component
PaaS cloud more as a service to provide directory "package" over database services, middleware services, domain name services, security services, big data analysis services, micro-services, often based on open source components reform package, with the traditional components already different, it is not possible in a conventional manner nanotubes, the need for specific analysis, often in a variety of ways API, log, network access protocols indirectly nanotubes.
What value Cloudy nanotubes
Suppose we really can achieve nanotube cloud platform sets from the three dimensions, but simply to focus on things together, what value? We can try to think from the perspective of operation and maintenance operations scenarios:
1. unified management and allocation of resources needs, business people do not care about the underlying resource type, only need to apply for the allocation of resources on-demand bill of lading, a unified platform for dynamic scheduling, cost accounting.
2. unified monitoring needs, especially distributed to business systems while under the cloud the cloud, or is concerned about the need to monitor demand for hardware, cloud platforms and system component status, the only way to a real sense from the business and improve the monitoring of efficiency and quality.
3. To provide the possibility of automated platform across the cloud, the drive interface or data resources on different platforms, the dimensions of the components of the interface register to form a unified platform assembly atom, a custom schedule organized into standardized processes to meet the complex between the cross-platform mission requirements, in theory, such as virtual machine migration.
4. In addition, there may be unified process work order services under cloudy environment, unified operational data visualization, data analysis and Comprehensive
These scenes may have under cloudy circumstances uniform nanotubes infinite imagination, to be users, manufacturers, service providers and ecology of all forces to jointly tap.
Author: Zeng Jiacheng
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