裸金属服务器比云服务器好在哪？

什么是裸金属服务器？

我们简单通过一个场景来说明什么是裸金属服务器。从前，如果你想在自己的服务器上搭建网站或者应用，你需要先去购买设备，然后寻找一个机房，把服务器托管进去，之后运维人员需要三五不时的带着工具跋山涉水的（机房通常比较偏远）去机房给服务器做配置、数据备份、维修维护等等。

有了裸金属服务器之后，你就可以省很多事了。不需要去选购设备，也不需要寻找机房、去机房维护；你只需要选择一个裸金属服务商，告诉他你需要什么样的服务器配置，希望选择哪个地区的机房，然后直接线上下单、线上管理就行了。

你可能要说了，这不就是云计算平台吗！非也。

虽然在便利性、弹性计算等特性上与云平台有很多相似之处，但裸金属服务器最大的特点是物理隔离。购买裸金属之后，您会拥有独享的物理服务器，与其他租户之间物理隔离，这对于对核心数据库的安全、隔离有硬性指标要求的用户，以及对于高性能有要求的用户都是非常重要的。

裸金属服务器产品解决了由于公有云虚拟云主机架构限制所不能实现的一些功能部署问题，例如，虚拟化业务、高性能计算业务、对IO性能有极高要求的业务，以及对核心数据要求高度掌控、安全隔离的业务。另外，提供裸金属服务的厂商也会提供运维服务，响应速度也很快，这样节省了您自有运维人员的成本支出。

裸金属服务器比云平台好在哪？

现在，相信你已经明白裸金属服务器相比较传统的服务器有哪些好处了。但是与云平台比呢，如果我对物理隔离和性能没有那么强制的要求，是不是就没必要用裸金属？

实际上，用户上云可能会存在多种形态的计算资源，某些情况下虚拟机无法满足复杂的应用场景，这时候可能就需要需要虚拟机和物理机相结合的场景，裸金属服务器也是在这种需求下应运而生。

1.合规性和安全性

裸金属服务器用户独立享有物理资源，保障性能稳定，满足数据安全和监管的超高要求。

比如，金融、证券等行业对于合规性和安全性有苛刻的要求，采用裸金属服务器部署，能够确保数据隔离、可监管、可追溯。又比如，超算中心、基因测序等高性能计算场景，对计算性能、稳定性、实时性等要求很高，裸金属也是不二的选择。

2.块存储云盘

裸金属服务器具有块存储云盘，可在线挂载、卸载云硬盘，满足弹性存储要求，同时支持使用本地硬盘。

3.VPC网络

裸金属服务为您构建安全隔离的网络环境，在VPC内可自定义IP、子网、配置路由表和网关等，并可实现弹性IP、共享带宽等功能。

4.自主、自动化批量运维

支持在线管理裸金属物理服务器集群，包括开关机、重启、一键重装系统、挂卷、远程登陆、远程串口管理、状态查询等操作。裸金属服务器的开通是自助完成的，您只需要指定具体的服务器类型、所需要的网络配置等，即可快速完成开通部署。还可以使用公共镜像、私有镜像以及共享镜像。

5.按量付费、去虚拟化

裸金属服务具有按量付费、分钟级交付、随时自助获取、弹性伸缩、大规模批量部署、去虚拟化等特点，满足多种用户需求。比如，某些关键的数据库业务不能部署在虚拟机上，必须通过资源专享、网络隔离、性能有保障的物理服务器承载，你就可以选择裸金属服务器。

下图详细列出了弹性裸金属服务与传统虚拟云、传统物理机的区别。

主机参考最新推出了裸金属服务器租用产品，裸金属服务器是一种按需购买、按量付费的物理云服务器租用服务，可以提供云端专用的高性能、安全隔离的物理服务器集群。具体详询主机参考客服zhujicankao.com。

What is a bare metal server?

We simply show what a bare metal server is through a scenario. Once upon a time, if you want to build a website or application on your own server, you need to first purchase equipment, then find a computer room, and trust the server in it. Then the operation and maintenance personnel need to go to the computer room from time to time with tools (the computer room is usually remote) to configure the server, back up the data, repair and maintenance, etc.

With bare metal servers, you can save a lot of things. You don't need to buy equipment, or find a computer room, or go to the computer room for maintenance; you just need to select a bare metal service provider, tell him what kind of server configuration you need, which area of computer room you want to choose, and then directly place an order online and manage online.

You may have to say, this is not the cloud computing platform! No, not too.

Although it has many similarities with cloud platform in convenience, elastic computing and other features, the biggest feature of bare metal server is physical isolation. After purchasing the bare metal, you will have an exclusive physical server and physical isolation with other tenants, which is very important for the security of the core database, isolation of users with hard index requirements, and users with high performance requirements.

Bare metal server products solve some function deployment problems that cannot be realized due to the limitations of public cloud virtual virtual virtual virtual virtual machine architecture, such as virtualization business, high-performance computing business, business with high requirements for IO performance, and business requiring high control and security isolation of core data. In addition, the manufacturers providing bare metal services will also provide operation and maintenance services, and the response speed is very fast, which saves the cost of your own operation and maintenance personnel.

Where is bare metal server better than cloud platform?

Now, I believe you have understood the advantages of bare metal servers over traditional servers. But compared with cloud platforms, if I don't have such mandatory requirements for physical isolation and performance, is it unnecessary to use bare metal?

In fact, there may be many kinds of computing resources on the cloud for users. In some cases, virtual machines can not meet the complex application scenarios. At this time, it may be necessary to combine virtual machines and physical machines. Bare metal servers also emerge under this demand.

1. Compliance and safety

Bare metal server users enjoy independent physical resources to ensure stable performance and meet the ultra-high requirements of data security and supervision.

For exle, the financial, securities and other industries have strict requirements for compliance and security. The deployment of bare metal servers can ensure data isolation, supervision and traceability. For exle, Supercomputing Center, gene sequencing and other high-performance computing scenarios have high requirements for computing performance, stability, real-time, and bare metal is also the best choice.

2. Block storage cloud disk

The bare metal server has block storage cloud disk, which can mount and unload the cloud disk online to meet the elastic storage requirements, while supporting the use of local hard disk.

3.VPC network

Bare metal service builds a safe and isolated network environment for you. In VPC, you can customize IP, subnet, configure routing table and gateway, and realize the functions of elastic IP and shared bandwidth.

4. Independent and automatic batch operation and maintenance

Support on-line management of bare metal physical server cluster, including on-off, restart, one key reinstallation system, volume hanging, remote login, remote serial port management, status query and other operations. The opening of bare metal server is self-service. You only need to specify the specific server type and required network configuration to quickly complete the opening deployment. You can also use public, private, and shared mirrors.

5. Pay as you go, de virtualization

Bare metal service has the characteristics of pay as you go, minute level delivery, self access at any time, elastic scaling, large-scale batch deployment, de virtualization and so on, to meet the needs of a variety of users. For exle, some key database services cannot be deployed on virtual machines. They must be hosted by physical servers with exclusive resources, network isolation and guaranteed performance. You can choose bare metal servers.

The following figure details the differences between elastic bare metal service and traditional virtual cloud and traditional physical machine.

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.

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