The "cloud" is getting closer and closer to our lives, however, its concept is getting farther and farther away from us. I recently saw a set of survey data on the Internet, and more than 90% of readers don't know what "cloud computing" is. When I took this set of data and told an industry insider, he replied disdainfully: "More than 90%, the real understanding is less than 1%."
He is also entangled in the understanding of "cloud computing", "too abstract, there is no specific sensible thing, so it is difficult to understand." Long Zhen also told the author, "The concept itself is a very nonsense thing." Based on this, The author went around to learn from the professionals until someone recommended this "IT is no longer important."
"Cloud computing" is an impetuous concept that is commercialized much faster than we think. Due to the application of "cloud computing", a large number of "cloud products" have been released, including real goods and parallel imports. However, as long as we understand the essence of the concept of "cloud computing", it is naturally clear that the so-called "cloud products" in their mouths are exactly what they are.
Cloud computing is an add-on, use, and delivery model of Internet-based related services that typically involves providing dynamically scalable and often virtualized resources over the Internet. Cloud is a metaphor for the Internet and the Internet. In the past, the cloud was often used to represent the telecommunication network, and later used to represent the abstraction of the Internet and the underlying infrastructure. As a result, cloud computing can even make you experience 10 trillion operations per second, with such powerful computing power to simulate nuclear explosions, predict climate change, and market trends. Users access the data center through computers, laptops, mobile phones, etc., and perform calculations according to their own needs.
Cloud computing has begun to be widely recognized. A large number of terms such as SaaS, PaaS, and IaaS have begun to appear. Many people may say that these are good ways to save money by using the IT service industry. Indeed, the rapid development of server virtualization and Internet technology has led to an increase in the use of IT resources. Of course, we can use the similar practices of “carpooling†and “group buying†to maximize the benefits. “Group purchases†and “carpooling†on cloud services can do better than real-life versions. First, each customer can be charged differently according to the amount of resources used and the time of use. It is also possible to make corresponding dynamic adjustments to the size of the "room".
Since the main task of cloud computing is to perform off-premises execuTIon, the required capacity of computing is not limited by the amount of computing resources available in a certain place. Flexible scalability is naturally a feature of cloud computing. This flexible and scalable feature is very useful. Last year, the online ticketing website of the Olympic Games collapsed in the first time when the service was opened. The unfortunate incident happened precisely because the server hardware and software architecture supporting the ticket purchasing website in the back-end data center did not work as flexible and scalable. When the number of service requests greatly exceeds the workload that the server can provide, the ticketing website has to "strike."
Another very important feature of cloud computing as a service is the provision of value added services to users. What is value-added services on the cloud? Let's imagine an example of such a cloud storage. If there is such a service provider, it has a very efficient data compression algorithm and deduplication algorithm. As long as its algorithm is effective enough, this service provider can provide large-scale cloud storage services to end users, but it does not need to have their own storage hardware equipment of the corresponding scale. Because it can handle the user data itself - fully compressed or deduplicated - and then subcontract the processed results to other cloud storage service providers such as Amazon's S3.
So this smart cloud storage service provider is itself a user to rent services from other cloud storage service providers. Compared with the latter, its advantage is to access the big packet forwarding packet. In addition to this difference in size, it also saves the cost of owning hardware storage resources. Together, these two aspects constitute a clear advantage of this smart cloud storage service provider compared to other third-party cloud storage service providers, which can become a profitable space for providing storage services. This smart cloud storage service provider is actually doing a value-added storage service. From this example we can also see why cloud computing/storage is often called a third-party service.
The industry generally believes that enterprise private clouds will be widely used before public clouds. What is a corporate private cloud? It is roughly the result of rationalization and reorganization of the internal IT resources of the enterprise. The internal IT system developed in history has not only a huge waste of resources (for example, each employee is equipped with a set of heavy-duty front-end hardware devices and expensive software licenses, and most applications are only for processing the office. For desktop office transactions, and on each front-end machine, it is necessary to operate on-premises execuTIon management and maintenance, which is to increase the labor costs. On the cloud security issue, the implementation of the enterprise private cloud is much simpler and easier than the public cloud, so the enterprise private cloud will take the lead in the public cloud.
Is enterprise private cloud a real cloud computing? I personally think that if a corporate private cloud adopts a small but complete approach, it is equipped with its own storage disaster recovery and redundant backup system (according to the SNIA standard of the network storage industry, redundant backup must be equipped in at least three different geographies). Location), then such a private cloud should not be seen as a cloud computing in a strict sense, because it is not in place in the rationalization and reorganization of IT resources, not thorough, still has local heavy configuration, high cost, lack of flexibility, etc. Typical non-cloud computing properties.
A more reasonable and thorough private cloud approach should be to have multiple private clouds share a common cloud storage service. This shared public cloud storage service disposes its resources between many private clouds, so it can be called a "private cloud storage cloud." It not only provides specialized storage services with redundant backup functions for enterprise private clouds, but also provides convenient and quick "moving" services for cloud computing users to prevent so-called "users locked into service providers" (vendor lock- In) The phenomenon occurs. In the hardware architecture, such a "private cloud storage cloud" because the cloud does not require real-time high-speed data processing, without the need for high-end storage technologies such as Fibre Channel-connected disk arrays, disk arrays connected with iSCSI channels more than enough.
However, the "private cloud storage cloud" in the software architecture requires highly intelligent, policy-based SaaS service level and information management functions, especially the need to implement strong security data isolation protection technology. From the point of view of a pure technician, I don't think there is a cloud storage solution on the market that can provide the quality of cloud storage services required by the "private cloud storage cloud", mainly because of the security of the software architecture. Work hard. EMC's Atmos onLine should have the potential to be upgraded in place on the software architecture.
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