What is server virtualization

# I believe many people have heard the term server virtualization. But don’t know what server virtualization is? Let’s summarize server virtualization below.

1: What is server virtualization

Running multiple virtual servers on a physical server is called "server virtualization" "In server virtualization, dedicated virtualization software divides resources such as processor memory on a physical server into multiple resources and allocates them to virtual servers. Since multiple resources can be aggregated on one physical server, servers, thus reducing management costs and load, but there are disadvantages, so caution is required.

2: Three major advantages of server virtualization

1. Reduce installation space

Since physical servers can be aggregated and virtualized, it can reduce Installation space for physical servers, in addition, since it can reduce the number of physical servers, there will be costs not only in terms of space but also in terms of power and management resources.

2. Efficient use of resources

For example, when each department in the company uses a server, the CPU and memory usage of each physical server is very low, and the server resources are usually too large. Therefore, by virtualizing these physical servers and consolidating them on one physical server, efficient utilization of server resources can be achieved.

3. Use of new servers

When there are various scenarios where new services and business software need to be introduced, it is recommended to develop, verify and prepare new servers. If you use server virtualization, you can quickly Schedule a new server. Additionally, scaling can be easily accomplished through server virtualization, increasing the number of servers and reducing system load.

3: Server virtualization method

According to the specific virtualization software to be used, server virtualization can be divided into two methods: host operating system type and super shielding type. , each method will have advantages and disadvantages, among which the super shield type makes up for the shortcomings of processing speed. In recent years, the hypervisor type has become the mainstream virtualization method. The hypervisor virtualization software not only runs on the hardware, but also runs on multiple devices. Run on a guest OS program.

The above is a complete introduction to what server virtualization is. If you want to know more about HTML tutorial, please pay attention to the php Chinese website.

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