An RDS instance is a database server to which your application servers can connect to store data. Before you create or connect to an RDS instance, you must gather information about your application server.
Procedure
-
Determine whether your application is or will be deployed on an Alibaba Cloud product, such as an Alibaba Cloud ECS instance. This topic uses an ECS instance as an example.
-
If so, proceed to step 2.
-
If your application is not on Alibaba Cloud and you do not plan to migrate it, this procedure does not apply. You can create an RDS instance and connect to it over the public network.
NoteConnecting over the public network is less secure, performant, and stable than connecting over a private network.
-
-
Identify the specific ECS instance.
-
Go to the ECS Instance List page and select a region from the top menu. The number next to each region indicates the count of ECS instances within it.
NoteIf you do not have an ECS instance, see Create an ECS instance.
-
Locate the ECS instance where your application is or will be deployed. This is the ECS instance that will connect to the RDS instance, for example, ECS instance A.
-
-
Check the region and network type of the ECS instance.
In the ECS Instance List, the region appears in the region selector at the top of the page. The network type appears in the Network type column of the instance list.
NoteIf the network type is classic network, we recommend that you migrate the instance to a VPC. For instructions, see Migrate an ECS instance from the classic network to a VPC.
-
Check the VPC details.
If the network type is VPC, click the instance ID. On the instance details page, find the VPC ID and VPC name in the Configuration information section.