The difference between currency digitization and virtualization
1、 Different definitions:
1. Electronic currency:
refers to the currency paid by electronic means
2. Digital currency:
is a virtual currency based on node network and digital encryption algorithm
Electronic currency: Based on computer technology, it can be widely used in the fields of proction, exchange, distribution and consumption. It has many functions such as financial savings, credit and non cash settlement2. Digital currency:
e to some open algorithms, digital currency has no issuers, so no one or institution can control its issuance; Because the number of algorithm solutions is fixed, the total amount of digital currency is fixed, which fundamentally eliminates the possibility of inflation caused by the overuse of virtual currency; Because the transaction process needs the approval of each node in the network, the transaction process of digital currency is safe enough
Third, the same point:the circulation mode of e-money and digital money is two-way circulation
extended data
e-money is the virtualization of the value scale of real money and the function of payment means. It is a kind of money without monetary entity. Electronic currency is an invisible currency based on highly developed electronic technology
the value of e-money is transferred from the consumer to the seller through the sales terminal, and then the seller redeems the money. The e-money held by the merchant is sent to the e-money issuer to redeem the money, or to the bank. The bank debits the corresponding amount on its account, and then the bank settles with the issuer through the clearing institution
electronic money can transfer money value directly among the holders. It does not require the intervention of third parties, such as banks. This is also the essential difference between electronic money and traditional cash card and transfer card. p>
remember to adopt it
server virtualization is a necessary part of the whole hyper convergence architecture
first of all, what is super fusion architecture
hyper converged infrastructure (HCI) is also known as hyper converged architecture, which means that in the same unit device (x86 server), it not only has resources and technologies such as computing, network, storage and server virtualization, but also includes cache acceleration, data De plication, online data compression, backup software, etc Snapshot technology and other elements, and multiple nodes can be aggregated through the network to achieve molar seamless scale-out and form a unified resource pool
secondly, understand the characteristics of the lower super convergence architecture:
1. In line with the concept of software defined data center, it must be through software combined with standard x86 server to build distributed storage, instead of using traditional centralized storage based on customized hardware
This concept emphasizes the integrated deployment of distributed storage software and virtualization software, not just the integration of software and hardwareit can be seen that server virtualization is a necessary part of the whole super convergence architecture
finally, combined with the mole composition of hyper fusion procts, the relationship between hyper fusion procts and server virtualization procts is further explained
virtualization
in brief, in IT environment, virtualization is to "isolate" computing resources, so that an object (such as an application, a task, a component) on a certain layer can operate independently without considering other changes under the layer. It is beyond the scope of this paper to discuss virtualization in detail. However, let's explain some terms. Virtualization and "isolation" are often used for some special reasons. In fact, there are technical differences between "virtualization" and
"simulation", "isolation" and "redirection". Virtualization isolates all kinds of computing resources, so it provides the opportunity to reallocate and integrate the isolated resources, so as to make better and more efficient use of these resources<
cloud computing
on the other hand, cloud computing is the ability to access various resources on demand. Generally speaking, there are many answers to what we expect from cloud computing. The definition of cloud computing given by the National Institute of standards and Technology (NIST) summarizes the basic characteristics, how to deliver, and what deployment mode can be regarded as cloud computing. I further simplified this definition and provided a more direct and simpler way to describe cloud computing. Here is my illustration of cloud computing based on 5-3-2 principle<
the obvious difference between cloud computing and virtualization
virtualization and cloud computing are on the contrary, it is not based on the 5-3-2
principle. For example, self-service model is not the basic component of virtualization, but it is essential for cloud computing. Some people will certainly retort that some virtualization solutions contain self-service components. However, the problem is that self-service is neither necessary nor sufficient for virtualization. In cloud computing, self-service is a crucial concept, which must be available to users at any time. Moreover, in order to rece long-term training and support all service levels, self-service is obviously an efficient mechanism. In the long run, it is a crucial factor to accelerate the ROI of cloud computing solutions and make them sustainable
virtualization is the core of virtual machine, which comes from the flexibility of infrastructure management, operation and deployment. Virtualization refers to the ability to consolidate servers, manage virtual machines, streamline desktops, and so on
at the same time, cloud is related to "service", and "service" is related to cloud readiness and response to market opportunities. Cloud focuses on how to go to the market. It focuses on how to make an applied enterprise core business application available on demand, not just to deploy a virtual machine. Cloud is interested in not only the operation of virtual machine, but also the target application running on virtual machine
therefore, virtualization is by no means cloud computing. Cloud computing is far beyond the scope of virtualization.
virtualization is a specific technology, which refers to the virtualization of hardware resources to achieve the characteristics of isolation, scalability, security, and full utilization of resources. CPU virtualization technology: Intel's VT-x, AMD's amd-v. Virtualization software: VMware, Hyper-V, Xen, KVM, OpenVZ, etc< At present, cloud computing mostly relies on virtualization. By virtualizing multiple server entities to form a resource pool, common computing and resource sharing can be realized. In fact, before the word "cloud computing" was put forward, the "server cluster" in the past had already realized these functions, but it was not as advanced as it is now< The main purpose of virtualization technology (especially desktop virtualization) is:
1. Improve the utilization of hardware resources
2. Improve the efficiency of operation and maintenance and management
the main purpose of cloud computing (especially Hadoop mentioned by LZ) is:
1. Analyze massive data in a reasonable time to find out the laws and trends behind