Development Status and Red Hat integration of xen Virtual Technology

He Xiaolong: Can I explain hardware virtualization?

Jinlin steel: virtualization technology is not considered in the current design. Some commands cannot be virtualized. In this way, we have achieved quasi-virtualization. For example, I/O commands are used to store data, and it cannot be virtualized. Once our management program receives such a command, we can help it intercept and explain it, return it to the operating system, and let it explain, run, and schedule it, this is a quasi-virtualization technology shared by hardware and software. Of course, Intel's vt can be fully virtualized after its launch, and xen3.0 can support this technology. Why does RedHat use xen? The xen technology is very advanced and conforms to the current technological trend and development level. In addition, xen is fully open-source.

HOST: Is this the only open-source virtual technology available?

Jin Lingang: Currently, this is the most popular one, and its advantage is also the most obvious. In addition, xen has many partners, such as its close joint venture with amdintel and close cooperation with other software vendors.

HOST: When did the cooperation start?

Jin Lingang: At first, Cambridge University proposed the xen concept. enterprises gradually realized that this technology is very good and open-source. Gradually launch it.

HOST: Which year was it from Cambridge?

Jin Lingang: I don't remember this.

HOST: You said that some people are optimistic about this technology, so it is popular. Are there any specific events?

Jin Lingang: the development of xen is still relatively smooth, without any special setbacks. At the earliest time we talked about xen2.0, 2.0 was somewhat limited, and only 32-bit running, a few CPUs, and many other problems were not solved. The 3.0 release will support 32-path SMP technology. It also supports 32-bit and 64-bit. Some other functions are supported by the 3.0 functions mentioned above.

HOST: When did the first Red Hat start to work with xen? What measures were taken at that time?

Jin Lingang: The most important problem is that users have this requirement. Many users think that xen technology is very good and they hope to use it. In addition, xen is open-source, so many people develop it together. The reason why xen has changed dramatically from 2.0 to 3.0 is that it is driven by the entire community. Open-source communities have pushed this technology to maturity. Many companies are focusing on xen projects.

HOST: Do you think xen3.0 will be qualified for enterprise-level requirements on the stability and security of virtual machines?

Jin Lingang: When xen proposed 3.0, the goal was to achieve enterprise-level virtualization technology. Of course, the methods vary from vendor to vendor, but for the Red Hat, we can see the Red Hat Enterprise Linux, the most basic features of enterprise-level applications are security, reliability, stability, and high performance. Therefore, RedHat puts xen in our Enterprise Linux, and after rigorous tests, RedHat puts forward the concept of integrated virtual environment, and brings various xen things into our RedHat applications, of course, the operating system is integrated with hypervisor, storage system, and other aspects. We usually talk about seamless connection to meet the requirements of enterprises. The most basic requirements are security, reliability, stability, and high performance.

He Xiaolong: after the launch of the next Red Hat version, he proposed a more economical enterprise solution for small and medium-sized enterprises. If the Red Hat technology is integrated with some high-performance servers, and xen can provide a good environment for small and medium-sized enterprises.

Jinlin steel: xen3.0 virtual technology our next major event is virtual technology. Transferred from CCID

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