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What Is Bare Metal Server?

Bare Metal Server (BMS) features both the scalability of VMs and high performance of physical servers. It provides dedicated servers on the cloud that offer the computing performance and data security required by core databases, key application systems, high-performance computing (HPC), and Big Data. You can apply for and use BMSs on demand.

The BMS self-service feature allows you to apply for a BMS by yourself. To apply for a BMS, you only need to specify the server type, image, network, and other configurations, then you will obtain your requested BMS within 30, or even 5 minutes. You can focus on your services without worrying about the server supply or O&M.

Product Features

BMS has the following features:

  • Flavors

    The cloud platform provides various instances types applicable to different scenarios, including general-purpose, disk-intensive, memory-optimized, and I/O-optimized. Different types of instances have different CPUs, memory capacity, storage medium, storage capacity, and NIC quantity.

    For more information about instance configurations, see Instance Family.

  • Storage

    BMSs have local disks with different media, interfaces, and capacities. If your service has requirements on the data redundancy capability, you are advised to purchase a BMS with RAID cards.

    BMSs that do not have local disks can be booted from Elastic Volume Service (EVS) disks. These BMSs can be provisioned in minutes.

  • Networks
    • Through a Virtual Private Cloud (VPC), BMSs can communicate with Elastic Cloud Servers (ECSs), GPU-accelerated Cloud Servers (GACSs), and other cloud products. VPC provides a 2 Gbit/s or higher bandwidth.
    • A high-speed network is an internal network among BMSs and provides high bandwidth for connecting BMSs in the same AZ. It provides a 10 Gbit/s or higher bandwidth.
    • User-defined VLANs are supported. The QinQ technology is used to isolate user networks and provide additional physical planes and network bandwidth.
    • The IB network features low latency and high bandwidth, and is applicable to various HPC projects.

    For more information about network configurations, see Network.

  • Images

    Public, private, and shared images are supported.

  • Security
    • Use the same security group policy as the ECS.
    • The Host Security Service (HSS) is supported, which improves the overall security of BMSs.
    • The Anti-DDoS service is supported, which provides defense against network-layer and application-layer DDoS attacks and real-time alarm notification.
    • The Web Application Firewall (WAF) service is supported, which ensures secure and stable running of web services.

Comparison of BMSs, Physical Servers, and ECSs

Table 1 compares BMSs, physical servers, and Elastic Cloud Servers (ECSs). Y indicates supported and N indicates unsupported.

NOTE:

No performance and feature loss: BMSs have all the features and advantages of physical servers. Your applications can access the BMS CPU and memory without any virtualization overhead.

Table 1 Feature comparison

Category

Function

BMS

Physical Server

ECS

Provisioning method

Automatic provisioning

Y

N

Y

Computing

No feature loss

Y

Y

N

No performance loss

Y

Y

N

Exclusive resources

Y

Y

N

Storage

Local storage

Y

Y

N

Booting from an EVS disk (system disk)

Y

N

Y

Using an image (free from OS installation)

Y

N

Y

Configurable RAID card

Y

Y

N/A

Network

VPC

Y

N

Y

User-defined network

Y

N

N

Communication between physical servers and VMs through the VPC

Y

N

Y

Management and control

Consistent remote login experience as VMs

Y

N

Y

Monitoring and auditing of key operations

Y

N

Y

Basic Concepts

  • For the physical computing resources on the cloud, that is, BMSs running in HUAWEI CLOUD data centers, see Instance Family.
  • For the data center where BMSs reside, see Regions and Availability Zones.
  • For the different types of BMSs with varied CPU, memory, storage, and networks, see BMS Types.
  • For the templates of BMS running environments, which contain an OS and some pre-installed applications, see Image.
  • For the BMS networks and their application scenarios, see Network.
  • For the IP addresses used to access the Internet, see EIP.

Access Methods

The public cloud provides a web-based service management system. You can access BMS through the management console or HTTPS-compliant application programming interfaces (APIs). These two access methods differ as follows:

  • API

    If you want to integrate BMSs on the cloud platform into a third-party system for secondary development, use an API to access BMSs.

  • Management console

    Use this access method for other operations. After registering with the public cloud, log in to the management console and choose Computing > Bare Metal Server on the homepage.

    If you have not registered, see Preparations.