Difference Between A Bare Metal Server And A Cloud Server
As more and more people use cloud servers to build websites and store data, traditional physical servers are gradually declining. But why are more and more users choosing bare metal servers recently? What is so good about bare metal servers? What is the difference with cloud server? How do companies choose? Super technology answers one by one for everyone.
Cloud servers are not perfect, and virtualization will have performance losses. Virtualization For some services with high performance requirements (such as high-performance computing), virtualization will bring performance delays. If intensive I/O (input/output) operations occur, there will also be a performance loss.
Although virtualization promises resource quotas, your experience will still be affected when other tenants have sudden high loads. For some applications that require high performance and stability, this cannot be tolerated.
There are other disadvantages of virtualization. For example, some hardware devices do not support virtualization, and some new hardware functions (such as the new features of CPU) cannot be used under virtualization. These are things that make users very uncomfortable.
Thus, there is a bare metal server. Bare metal servers are still rented. The cloud service provider rents you a dedicated physical server, and you are the only tenant.
Bare metal servers are not limited to physical servers, they are a combination of physical servers and cloud services. “Bare metal” means that it does not include the corresponding operating system and software, this is the customer’s later optional configuration. Most of the bare metal server products of cloud service providers do not provide local hard disks (which can be supported), but mainly provide CPU and memory.
Bare metal servers can usually be seamlessly connected and compatible with other cloud services provided by cloud vendors, such as network services (such as VPC private networks), cloud database services, etc. In this way, it is convenient for the bare metal server to communicate and collaborate with the user’s existing virtualized server, and can effectively utilize cloud resources.
Bare Metal Server Applicable Enterprise
The first type of users, some scenarios that require high security isolation, such as banking, finance, securities and other industries. These industries have compliance requirements for business deployment. You are not allowed to share a lease with others, and data must be physically isolated. Therefore, they are the primary customers of bare metal servers.
The second type of users are those who have extreme requirements for performance. For example, in scientific research scenarios such as supercomputing, aerospace, cosmic observation, and even high-energy physics, the amount of data they have to process is unprecedentedly huge, and the stability of the calculation process is also very demanding. Therefore, bare metal servers are more favored.
The third category of users is game development. The online game business also requires high system performance and requires sufficient service stability. Therefore, it also tends to use bare metal servers.
Bare Metal Server Specifications
The cloud platform provides instance types suitable for different business scenarios, including general-purpose, local storage, memory-optimized, IO-optimized, etc. Different types of instances have dimensions such as CPU, memory capacity, storage media, storage capacity, and the number of network cards. Different configurations.
Storage Configuration
Different types of bare metal servers are configured with local disks with different media, different interfaces, and different capacities. If your business requires data redundancy, it is recommended that you choose a bare metal server equipped with RAID cards. For bare metal servers without local disks, it supports booting from cloud hard disks to achieve minute-level provisioning (referred to as fast provisioning of bare metal servers).
Network Configuration
Support virtual private cloud (VPC), maintain interconnection with cloud servers, GPU cloud servers and other cloud products, and provide intranet bandwidth of more than 2Gb/s. It supports high-speed network, and provides an unrestricted network between bare metal servers in the same availability zone. The internal network bandwidth can reach more than 10Gb/s. Support custom VLAN network, physically adopt QinQ technology to realize user’s network isolation, and provide additional physical plane and network bandwidth. Support IB network, its low-latency, high-bandwidth network characteristics can be used in many high-performance computing (High Performance Computing, HPC) projects.
Mirror Configuration
You can use public mirrors, private mirrors, and shared mirrors.
Security Configuration
Keep the same security group policy as the cloud server. Support enterprise host บริการรักษาความปลอดภัย (Host Security Service, HSS), improve the overall security of the server. Support Anti-DDoS traffic cleaning service, provide DDoS attack protection at the network layer and application layer and real-time alarm notification of attacks. Support Web Application Firewall (WAF) to protect the safety and stability of Web services.
Therefore, for enterprises, if they have critical applications or businesses with high performance requirements (such as big data clusters, enterprise middleware systems) and require a safe and reliable operating environment, bare metal servers are more appropriate.