This topic describes how to view the network architecture of a PolarDB-X 1.0 (formerly DRDS) instance. This topic also provides migration solutions based on the network architecture, including Migrate a PolarDB-X 1.0 instance of the classic network architecture and Migrate an instance of the classic network and VPC hybrid type.
Scenarios
Upgrades in existing zones
To ensure and continuously improve the performance and stability of PolarDB-X 1.0 in some existing regions and zones, the physical infrastructure in these regions and zones requires upgrades and technical improvements. Affected Alibaba Cloud users receive the [Upgrade and migration announcement of some PolarDB-X 1.0 (formerly DRDS) zones]. PolarDB-X 1.0 provides migration solutions to help you migrate your PolarDB-X 1.0 instances to the destination zones.
Discontinued use of the classic network architecture
To better serve users, Alibaba Cloud has been launching cloud services based on the Virtual Private Cloud (VPC) architecture since 2014. These services provide cloud customers with higher security, stability, flexibility, and performance. After years of development, the VPC architecture has become the default choice for many cloud customers. Therefore, Alibaba Cloud decides to officially discontinue the use of the classic network architecture for PolarDB-X 1.0 instances. If your instance uses the classic network architecture or classic network and VPC hybrid architecture, use the migration solutions provided in this topic to migrate your instance. For more information, see Migrate a PolarDB-X 1.0 instance of the classic network architecture and Migrate an instance of the classic network and VPC hybrid type.
Limits
The operations in this topic are valid only for dedicated instances. If you are using a shared instance, contact us to migrate the shared instance to a dedicated instance.
Network architectures of a PolarDB-X 1.0 instance
The nodes and connection strings of PolarDB-X 1.0 instances vary based on the network architecture. The following figure shows the supported network architectures: classic network architecture, classic network and VPC hybrid architecture, and VPC architecture.
Classic network architecture: Both instance nodes and connection strings use the classic network architecture. Alibaba Cloud has planned to discontinue the use of this architecture. Therefore, you must change the classic network architecture to the classic network and VPC hybrid architecture and then to the VPC architecture. For more information, see Migrate a PolarDB-X 1.0 instance of the classic network architecture.
Classic network and VPC hybrid architecture: The instance nodes use the classic network architecture. The connection strings use the classic network and VPC hybrid architecture. Instances of this architecture can be accessed by Elastic Compute Service (ECS) instances by using connection strings. However, you still need to migrate the classic network-connected instance nodes to VPC-connected nodes in the same zone or across zones. For more information, see Migrate an instance of the classic network and VPC hybrid type.
VPC architecture: Both instance nodes and connection strings use the VPC architecture. PolarDB-X 1.0 instances of this architecture in some existing zones require physical infrastructure upgrades and technical improvements. You can use the switch zone feature to migrate these instances to other zones. For more information, see Switch zones.
View the network architecture of an instance
Log on to the PolarDB-X 1.0 console.
In the top navigation bar, select the region where the instance is deployed.
In the left-side navigation pane, click Instances.
Find the instance and click the instance ID to go to the Basic Information page.
View the network architecture information.
An instance of the classic network architecture
NoteOn the details page of an instance of the classic network architecture, you can view the following information:
The Network Type parameter in the Connection Information section is displayed as Classic Network. No connection string of the VPC type is available.
The Node Type parameter in the Configuration Information section is displayed as Classic Network.
An instance of the classic network and VPC hybrid architecture
NoteOn the details page of an instance of the classic network and VPC hybrid architecture, you can view the following information:
The Network Type parameter in the Connection Information section is displayed as VPC.
The Node Type parameter in the Configuration Information section is displayed as Classic Network.
An instance of the VPC architecture
NoteOn the details page of an instance of the VPC architecture, you can view the following information:
The Network Type parameter in the Connection Information section is displayed as VPC.
The Node Type parameter in the Configuration Information section is displayed as VPC.