Benefits of virtual currency

1. Currency virtualization refers to the graal separation of money from precious metals in the development and transformation into credit money. Credit money develops from paper money to bank account and credit card, and money is transformed into a pure value symbol. That is to say, money graally breaks away from its value entity (as the result of abstract labor) and value carrier (such as precious metals, bank notes) and becomes a pure value symbol

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2. Currency virtualization refers to the graal separation of money from precious metals in the development and transformation into credit money. Credit money develops from paper money to bank account and credit card, and money is transformed into a pure value symbol. That is to say, money graally breaks away from its value entity (as the result of abstract labor) and value carrier (such as precious metals, bank notes) and becomes a pure value symbol.

4. Security. First of all, let's talk about my favorite suggestion for the majority of users, that is to take Linux as the main desktop system on everyone's desktop, and save all personal data to external storage devices before installing the system. If some windows applications are often used by us, we should use the virtual machine applications to install a set of windows system on the computer, and then install those common programs in the virtual machine again. After the above work is ready, the data saved on the peripheral devices can be copied back to the Linux system of the local machine or the windows system of the virtual machine as required. This not only ensures the flexibility of the required applications, but also makes these programs have a more secure and stable operating platform when they are connected to the Internet

convenience, in some cases, we may need to run multiple operating systems at the same time. For example, OS X lion can't run the financial software quicken 2007 because Apple no longer supports Rosetta, which is a big "good news" for users who choose this new operating system. Rosetta, by the way, is a necessary technology for legacy PowerPC applications to run. At this time, running virtual windows in OS X system is a good solution

cost saving: if you plan to deploy two (or more) computer devices at home or in the office, virtualization technology can significantly save costs compared with purchasing new machines. Even with the extra hard disk and the cost of windows OEM certification, it's much cheaper than buying a new one. In particular, some virtual clients are completely free

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5. Advantages of virtualization technology:
① higher resource utilization: virtualization can support the dynamic sharing of physical resources and resource pools, and improve resource utilization, especially for different loads whose average demand is far lower than the need to provide dedicated resources

2. Rece the management cost - Virtual can improve the efficiency of staff through the following ways: rece the number of physical resources that must be managed; Hiding part of the complexity of physical resources; The task of public management is simplified by automation, better information and central management; Realize the automation of load management. In addition, virtualization can also support the use of common tools on multiple platforms

③ improve the flexibility of use - dynamic resource deployment and reconfiguration can be realized through virtual environment to meet the changing business needs

④ improve security - Virtual can achieve isolation and partition that simple sharing mechanism can not achieve, and these features can realize controllable and secure access to data and services

⑤ higher availability - Virtual can delete, upgrade or change physical resources without affecting users

6. Higher scalability - according to different procts, resource partitioning and aggregation can support virtual resources that are much smaller or larger than indivial physical resources, which means that you can adjust the scale without changing the configuration of physical resources

7 interoperability and investment protection - virtual resources can provide compatibility with various interfaces and protocols that the underlying physical resources cannot provide

8. Improve resource supply - compared with indivial physical resource units, virtual resource allocation can be carried out in smaller units.

6. The basic advantage is that it is easy to manage data, safe and cost-effective.
the deployment of desktop virtualization has certain requirements for background servers. Take a blade server with 2-way 4-core 48gb memory as an example, it can run about 45 windows virtual machines with 1g virtual memory. You may have concerns about this. The back office needs to invest a lot of servers, but the essence of desktop virtualization is to transfer the cost originally invested in the purchase and operation of PC to the back office. At the same time, it can improve data security, simplify operation and maintenance management, extend the service life of front-end equipment, and greatly rece energy consumption if thinclint is adopted. Many market research institutions believe that a successful implementation of desktop virtualization project can save about 30% of the operation and maintenance costs, which leads to the popularity of desktop virtualization in the context of the overall economic downturn. There are many successful cases in Dell

7. Virtualization storage can bring new functions, such as allowing transparent storage expansion. Among these functions, one of the most striking is thin provisioning. Thin provisioning can consume only the drive space actually used. Another favorite function of storage administrators is data De plication
when the user deploys data De plication at the top of the block level, data De plication will check the disk usage of the logical area and look for the same data block. These same blocks are linked to the first instance, and the plicate blocks are recycled by the storage system
other functions that may drive administrators to turn to virtualized storage are volume management functions, such as replication, snapshot, and migration
volume or Lun replication from one storage system to another is a good thing for disaster recovery. In fact, solutions like VMware site recovery manager rely on this replication technology, which is needed to recover the system to another site. A snapshot of a Lun can also be very useful. Lun snapshot can operate like the snapshot function of virtual machine, and the whole data set can be quickly recovered to the specified point in time
finally, the migration function can also bring a lot of convenience to the architecture administrator. With virtualization engine with virtualization technology (such as VMware's storage vmotion function), administrators can migrate from one storage system to another. But it's not very useful for non virtualized storage. San based migration can migrate a volume from one storage system behind the storage processor to another, so as to migrate data from the device that needs to be removed
one of the main use scenarios of this function is to migrate data from old disk arrays (such as those using ultra-320 SCSI disks) to new disk arrays (such as those using serial link SCSI (SAS) drives). This can lead to better performance. By virtualizing the storage environment, a Lun can be migrated from one storage system to another, completely independent of the connected system. This is mainly because the VMware esxi host or windows server is not connected to the underlying storage, but to the storage processor, that is, the abstraction layer
one of the hidden benefits of virtualized storage is that administrators can solve the data protection problem of unstructured data. For example, several terabytes of storage, although it does not seem too much, but if it contains 1KB file data, you will soon find that so much data is difficult to manage in the file system
this situation makes this type of data backup extremely cumbersome. Virtual storage can solve this problem at the block level, or snapshot the volume to another storage system, so as to meet the requirements of data protection. As long as the storage system can operate on the contents of the Lun at the block level, the benefits of virtual storage will come out.

8. The application can only be installed on the server. It does not need to be installed on all computers. The client only needs to open the application directly through the virtual software client. A more advanced mode is to deploy multiple versions of a software on the server, such as the versions of office 2000-2013. The client does not need to install Office. It can use the version it wants, At the same time, when the virtual application is released, users can use the application outside the company.

9. Storage virtualization is a technology, which abstracts the physical layer resources and presents users with a flexible and logical data storage space. Well, what about the storage instry. Benefits 1. In the traditional IT architecture, after a new application is installed in the system, the storage administrator must allocate enough storage space for the application to ensure that the application can run normally when the demand grows, which is commonly known as over configuration. People are used to allocate a lot of storage space for applications in advance, but in practical applications, it is difficult to use all of these storage space, resulting in waste. Thin provisioning allows storage administrators to allocate the storage space needed for virtual applications and allocate the actual capacity only when data is written. This is called on-demand allocation. Thin provisioning technology can not only effectively improve storage utilization, but also allow storage administrators to allocate sufficient storage space for independent projects with unknown storage requirements in an environment with changing capacity requirements, which can be shared by other projects. Second, disaster tolerance and fault tolerance ensure business continuity. Without virtualization, data replication occurs between similar arrays and similar hosts. Now we gather multiple disk systems to build a large storage pool. Through the storage virtualization engine, the data that needs to be copied in the storage virtual pool can be saved to the specified device, that is, it can be copied asymmetrically. That is to say, there is no need to provide an equivalent host and disk in the location of failure recovery, and the storage replication can be carried out according to its own needs.

10. The so-called server virtualization refers to the abstraction of server physical resources into logical resources, so that a server can become hundreds or even tens of thousands of virtual servers, so that we are no longer limited by physical resources. What are the benefits of server virtualization

1. Rece energy consumption

by turning physical servers into virtual servers and recing the number of physical servers, you can achieve great savings in power and cooling costs. According to the number of servers and related hardware in the center, enterprises can benefit from recing energy consumption and cooling demand, thus recing it costs

2. Save space

the use of virtualization technology greatly saves the occupied space and reces the number of servers and related hardware in the data center. Avoid over deployment. Before implementing server virtualization, administrators usually need to deploy additional servers to meet the unexpected needs. With server virtualization, this extra deployment can be avoided

3. Cost saving

the use of virtualization technology greatly reces the number of purchasing servers, while the corresponding space and energy consumption are reced. Each server can save about $500 to $600 per year

4. Improve infrastructure utilization

by pooling infrastructure resources and breaking the barrier of one application and one physical machine, virtualization greatly improves resource utilization. By recing the purchase of additional hardware, enterprises can achieve significant cost savings

5. Improve stability

improve availability, and bring a highly reliable server application environment with transparent load balancing, dynamic migration, automatic fault isolation, and automatic system reconfiguration. By isolating the operating system and applications from the server hardware devices, viruses and other security threats cannot infect other applications

6. Rece downtime events

one of the major functions of migration virtual machine server virtualization is to support the migration of running virtual machines from one host to another, and there will be no downtime events in this process. Helps virtualized servers run longer than physical servers

7. Improve flexibility

improve the flexibility of it to business through dynamic resource configuration, support the integration of heterogeneous operating systems, support the continuous operation of old applications, and rece the migration cost. It supports the integration of heterogeneous operating systems, supports the continuous operation of old applications, supports the rapid transfer and replication of virtual servers, and provides a simple and convenient disaster recovery solution
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