Tencent ECS regional selection reference guide

How to select Tencent ECS region ？ What factors should be considered? The ECS region is the city where the ECS data center is located. Choosing a suitable ECS region for different business needs has a great relationship with the access speed of website users. Wei Aisi's notes share a variety of reference factors that need to be considered in the regional selection of Tencent ECS.

Tencent ECS regional selection reference guide

When purchasing Tencent ECS, you will see the concepts of region and availability zone. There is a difference between the two. The region contains multiple zones.

1. ECS region

The ECS region refers to the city where the data center of the ECS is located, also known as the server node. Tencent ECS regions include: South China, East China, North China, Southwest China, Hong Kong, Macao and Taiwan, Southeast Asia, South Asia, Northeast Asia, West America, East America, North America, Europe, etc. Specifically, Guangzhou, Shanghai, Nanjing, Beijing, Chengdu, Chongqing, Hong Kong, Singapore, Bangkok, Jakarta, Mumbai, Seoul, Tokyo, Silicon Valley, Virginia, Toronto, Frankfurt, Moscow and other regions.

2. ECS zone

The zone is an independent zone of the computer room in the same region. If one zone fails, the normal operation of the other zone will not be affected. For example, there are currently 6 zones in Guangzhou. Deploying applications in different zones can improve the disaster tolerance capability and reliability of the business.

be careful: The region and availability zone of Tencent ECS cannot be changed after successful purchase , Lao Wei suggested that you should consider the region and availability zone before purchasing. If you buy wrong, you can only apply for a refund to purchase again. Refund may lose the qualification of first purchase and you can't enjoy the preferential price. Please carefully choose according to several factors in the selection of Tencent ECS regional availability zone shared by Lao Wei below!

Tencent ECS regional selection factors

1. Relationship between region and access speed

Theoretically, the closer the Tencent ECS region is to users, the lower the network latency and the faster the opening speed. So Lao Wei suggested that the principle of proximity should be considered first when choosing Tencent ECS region.

For example, if the user is in Guangzhou, the first choice is Tencent ECS Guangzhou; Users in southwest China give priority to Chengdu and Chongqing; Shanghai machine room will be selected first in East China.

Similarly, if your users are in the United States, it is recommended to select Tencent Cloud US ECS regional nodes to provide access services. If you create an ECS in China, your user access will have a high access delay. It is not recommended.

The regional nodes of Tencent ECS are all over the world, and no matter where your users are, you can find a suitable region nearby.

2. Filing or not

If you do not want to purchase Tencent ECS for filing, do not select mainland China, including Beijing, Shanghai, Guangzhou, Chongqing, Chengdu and other regional nodes. If you don't want to file, you can choose Hong Kong, the United States, Singapore, Japan and other regions outside mainland China.

Tencent Cloud Global Purchase Promotion selects global nodes with affordable prices (as low as 18% off), free IP switching, coverage of 27 regions, 56 machine rooms, Europe, America, Japan, South Korea and Southeast Asia, and high-quality lines, BGP multi line optimization helps business go to sea.

3. Intranet connection between ECS and other products

If you need to purchase other Tencent cloud products, such as Tencent Cloud Object Storage 、 Tencent cloud database The problem of intranet connection should also be considered. Wei Aisi notes take Tencent cloud object storage and Tencent cloud database as examples to illustrate that ECS, object storage and cloud database use intranet communication in the same region with lower latency and smoother connection. More importantly, the security of intranet connection is high.

Lao Wei suggested that when selecting multiple Tencent cloud products, you should choose the same zone in the same region, so that cloud products can be connected through the intranet and have the advantages of low access latency and fast access speed.

4. Trade off between business high availability, disaster recovery and network latency

For large businesses and financial businesses with high requirements, it is recommended to deploy the business in different zones in the same region, so as to isolate problems between zones. If problems occur in Zone 1, it will automatically switch to Zone 2, without affecting the normal operation of the business. High application reliability, cross zone disaster tolerance. Evaluate the business scenario in advance, balance the relationship between high availability and low latency, and realize the balance between the two considering the network latency between different availability zones.