当前位置:网站首页>[wonderful learning journey of cloud computing] phase I: getting to know cloud computing for the first time
[wonderful learning journey of cloud computing] phase I: getting to know cloud computing for the first time
2021-09-15 04:19:45 【ytxs】
Speaking of “ Cloud computing ” These three words , I'm sure you've heard it countless times , So I want to ask you ,“ Cloud computing ” What is it ? Can you answer that ? First of all, when we hear the three words of Cloud Computing , It feels very tall , Highly unmeasurable , New technology pronouns and so on . If you haven't touched , It feels far away from us , It's not living , Unlike QQ Life oriented application software like wechat .
01 Cloud computing begins Let's start with the age of computers ,386 Time , Refer to 80386, It's using 8086 Machine and instruction set , and CPU Instruction sets are divided into complex instruction sets and reduced instruction sets . We are familiar with ordinary PC It uses a complex instruction set , Minicomputers use a reduced instruction set , such as UNIX System . And then again 80186、80286、80386、80486、80586, Later, these were collectively referred to as 80X86 Era . After it was introduced into China, it was called X86, That's what we're talking about now X86 framework . Since it is not possible to register trademarks digitally , at that time Intel The company puts itself CPU Named Celeron series 、 Pentium series 、 Core series , But these are not used by the server CPU, The server uses Xeon series (Intel Xeon Platinum ) Of CPU.How to understand Cloud Computing ? First, build a website in the traditional way , How to do it ? Server purchase required , network bandwidth , Register the website domain name , Development , A series of complex processes such as operation and maintenance , Finally, I can build my website . It's like we want clean water , Many tools need to be purchased in the early stage , Spend a lot of manpower , Finally, a well can be drilled . however , In a cloud scene , We can buy a virtual machine directly on the cloud , After relevant configuration, you can use , Then upload the files needed by the website , Then you can build the website , This can also save a lot of manpower and material resources . Case study : If I start a business and build a portal , In the Huawei cloud scenario , You can buy an elastic ECS first , You don't have to buy a real physical server . in addition , Elastic ECS can be charged on demand , Some cloud computing vendors can even charge by minute , Then start selecting cloud services CPU And memory , You can select the image to use according to your needs , Such as website construction 、 E-commerce , You can also choose a hard disk , Elastic public network IP, After the configuration is completed, confirm the purchase , You can use it after creating it in two minutes . The cloud is to buy a server ? Definitely not , This is just one of the cloud services , There are also various value-added services . For example, data analysis , You can track the operation of ECs in this year , Analyze which month the website has the highest traffic , And it can be compared with the same type and give follow-up operation suggestions . And flexible services , When the business needs to expand more servers , The same server can be easily expanded by purchasing elastic scaling Services , After setting the policy , During the peak period of business, the same business virtual machine can be automatically created to provide business ; When the business has passed the peak period , It can return to the normal state through elastic services . You can't do this in the traditional virtual world , This is the advantage of enterprise virtualization .
02 Cloud computing and virtualization
from 1964 From the year onwards ,IBM Is a great enterprise , It has a history of one hundred years . and IBM The most profitable businesses are mainframes and minicomputers , Its minicomputer is P series (POWER framework ), Its system is AIX. The minicomputer service charge is very expensive , and UNIX Not open source , therefore UNIX Slowly declining . But what other companies will use minicomputers ? But financial companies still use , Because the minicomputer is too stable , Its hardware and software are IBM Of , There is no compatibility issue , It can ensure the stable operation of key businesses .
Thank you for reading this issue , This is the first issue of our cloud computing topic , Later, Mr. Zou will lead the Yutian cloud computing lecturer team to output more high-quality technical content , Welcome your long-term attention , Look back regularly !
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https://chowdera.com/2021/09/20210909111630760e.html
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