In the early days, enterprises had no choice but to use traditional servers. According to the needs of the project, they first purchase, then find a computer room for hosting, and then the operation and maintenance personnel go to the computer room to do configuration, data backup, maintenance and so on. Not only the deployment cycle is long, the configuration is complex, but also takes up a very high human cost.
Later, virtualization emerged, such as the most famous VMware software, Xen, KVM and other technologies, which can realize virtualization on a single or multiple physical machines, and provide users with virtual resources divided into physical resources. The advantage of virtualization is that users do not need to purchase servers at their own cost, but create new virtual machines on a physical machine, and each project is placed in a virtual machine. But when the scale is larger and larger, the management of virtual machine is more and more difficult, and the problems are more and more.
With the advent of the era of cloud computing, the major cloud service providers began to provide cloud servers. In fact, this is also the mode of virtualization on physical machines. Only one physical machine has become thousands of physical machines. The larger the scale, the higher the technical requirements. This mode not only manages massive virtual machines, but also manages network resources, storage resources, security protection, data backup and so on, so it is much more advanced than VMware.
But the real problem is that there are multiple virtual machines on each physical machine at the bottom, and different customers share instances, which inevitably leads to oversold. In order to solve this problem, an enterprise instance exclusive model was developed to ensure the resource exclusive among tenants and thus ensure the stability.
However, this mode of providing exclusive instances still can not meet the requirements of some customers, such as government affairs, finance and other industries, which have high requirements for data security and can not share physical resources with other users. What should I do? Obviously, it is impossible to use the “bulky” traditional server, so the bare metal server should be born.
The bare metal server is actually a physical machine, but it also has the flexibility of virtual machine and other characteristics. The bare metal server does not need to be virtualized, and there is no performance loss. It solves some users’ requirements of high computing power and data security, has physical security isolation ability, high network packet forwarding ability and very low network delay.
With the change of market demand, the emergence of bare metal servers has attracted much attention. Why? If your application is in the following scenarios, maybe you can find the answer.
Scenario 1: websites and applications with high security and regulatory requirements such as financial securities;
Scenario 2: Supercomputing Center, gene sequencing, big data analysis and other high-performance applications;
Scenario 3: build a core database that requires resource exclusive and network isolation;
Scenario 4: deploy mobile games, mobile apps and other one-stop mobile applications.
In summary, the advantages of bare metal servers are high security physical isolation, elastic scaling, pay as you go, second level delivery, self access at any time and large-scale rapid batch deployment. It allows a single user to have a dedicated bare metal server with complete physical isolation. At the same time, the user can manage the equipment in batches, and can apply for and manage the bare metal server cluster as quickly and flexibly as the traditional virtual cloud server.
The host reference newly launched the bare metal server rental product. The bare metal server is a physical cloud server rental service purchased on demand and paid by volume, which can provide a high-performance, secure and isolated physical server cluster dedicated to the cloud. For details, please refer to customer service zhujicankao.com.