Create an instance

Free trial

Alibaba Cloud provides a free trial for new users of AnalyticDB for PostgreSQL V6.0 instances in elastic storage mode. If you are new to AnalyticDB for PostgreSQL, you can click here to apply for a free trial. If you are ineligible for a free trial, you can perform the following procedure to create an instance in the AnalyticDB for PostgreSQL console.

Create a service-linked role

The first time you use AnalyticDB for PostgreSQL, you must create a service-linked role in the console.

1. Log on to the AnalyticDB for PostgreSQL console.

2. In the upper-right corner of the console, click Create Instance.

3. In the Create Service Linked Role message, click OK.

Create an instance

1. Log on to the AnalyticDB for PostgreSQL console.

2. In the upper-right corner of the console, click Create Instance to go to the buy page.

3. Configure the Product Type parameter. Valid values:

   • Subscription: You must pay an upfront subscription fee when you create an instance. For long-term use, the subscription billing method is more cost-effective than the pay-as-you-go billing method. You are charged lower prices for longer subscription durations.

   • Pay-as-you-go: A pay-as-you-go instance is billed per hour based on your actual resource usage. For short-term use, we recommend that you select the pay-as-you-go billing method. If you no longer need a pay-as-you-go instance, you can release the instance to reduce costs.

4. Configure the parameters that are described in the following table.

   Parameter	Description

   Parameter	Description
   Region and Zone	The region where you want to create the instance. Note After you complete the purchase, you cannot change the region of the instance. To accelerate access to the instance, we recommend that you select a region that is close to your geographical location. Make sure that the AnalyticDB for PostgreSQL instance is deployed in the same region as the Elastic Compute Service (ECS) instance to which you want to connect. Otherwise, you cannot connect these instances over an internal network and make them deliver the optimal performance.
   	The zone where you want to create the instance. Each zone is an independent physical location within a region. Zones in the same region do not have substantial differences. You can create the instance in the same zone as the ECS instance to which you want to connect or in a different zone.
   Instance Resource Type	The resource type of the instance. Valid values: Serverless Mode: You can specify only the required computing resources without the need to reserve storage resources. Elastic Storage Mode: You can add nodes or increase your storage capacity. Note The resource types that are available vary based on the region and zone. If the current region and zone do not provide the required instance resource type, change the region and zone. For information about the resource types that are available in different regions and zones, see Instance specifications.
   Serverless Mode	The scheduling mode for the instance in Serverless mode. Valid values: Manual Scheduling: You can perform manual resource orchestration based on your business requirements. For example, you can manually pause and resume the instance and perform scheduled scaling. For more information, see Manually pause and resume an instance and Manage plans. Auto Scheduling: The instance can be automatically paused and resumed based on traffic detection. If no traffic is detected, the instance automatically enters the idle state. You are not charged for computing resources when the instance is in the idle state. Note This parameter is available only for instances in Serverless mode. You can select Auto Scheduling only when you set the Product Type parameter to Pay-as-you-go.
   Maximum ACUs	The maximum number of AnalyticDB compute units (ACUs) for the instance in Serverless auto scheduling mode. Valid values: 8 to 32, in 8 increments. An ACU is the unit of computing resources for AnalyticDB for PostgreSQL instances in Serverless auto scheduling mode. If your instance fails to meet computing performance requirements, you can modify the value of this parameter. For more information, see Configure instance resources. Note This parameter is available only for instances in Serverless auto scheduling mode.
   Engine Version	The engine version of the instance. Valid values: 7.0 Standard Edition and 6.0 Standard Edition. Note You can select 7.0 Standard Edition only for instances in elastic storage mode. This parameter is available only when you set the Product Type parameter to Subscription.
   Edition	The edition of the instance. Valid values: High Performance (Basic Edition) and High-availability Edition. Note You can select High-performance Edition (Basic Edition) only when you set the Instance Resource Type parameter to Elastic Storage Mode. For more information, see High-performance Edition.
   Vector Engine Optimization	Specifies whether to enable vector search engine optimization. Valid values: Disabled (Recommended for Data Warehouses): In main-stream analysis, data warehousing, and real-time data warehousing scenarios, we recommend that you disable vector search engine optimization. Enabled: In AI-generated content (AIGC) and vector search scenarios, we recommend that you enable vector search engine optimization. Vector search engine optimization can improve the performance of your instance in vector analysis, but consumes large amounts of memory resources and significantly reduces query concurrency. Before you enable vector search engine optimization, make sure that you understand its impact. Note You can enable vector search engine optimization only for V6.0 instances in elastic storage mode. You can enable vector search engine optimization only for instances whose compute node specifications are 4 cores and 32 GB or higher.
   Coordinator Node Resources	The specifications of coordinator node resources. We recommend that you select coordinator node resources with the number of compute units (CUs) to be equal to the number of CPU cores per compute node. If you need more coordinator node resources, you can add more resources after you create the instance. For more information, see Manage coordinator node resources. Note This parameter is unavailable for instances in Serverless auto scheduling mode.
   Compute Node Specifications	The specifications of compute nodes. The available specifications vary based on the resource type and edition. For more information, see Instance specifications. Note This parameter is unavailable for instances in Serverless auto scheduling mode.
   Compute Nodes	The number of compute nodes. The instance performance increases with the number of compute nodes. The number of compute nodes that you can select varies based on the resource type and edition. Serverless mode Valid values when Edition is set to High-availability Edition: 2 to 512, in 2 increments. Elastic storage mode Valid values when Edition is set to High-availability Edition: 4 to 512, in 4 increments. Valid values when Edition is set to High-performance Edition (Basic Edition): 2 to 512, in 2 increments. Note This parameter is unavailable for instances in Serverless auto scheduling mode.
   Disk Storage Type	The disk storage type. Valid values: PL1 ESSD (Recommended) ESSD_PL0 PL2 ESSD (High-throughput) For information about the performance differences between the disk storage types, see Block storage performance. Note This parameter is available only for instances in elastic storage mode.
   Encryption Type	The encryption type of the instance. You can select Not Encrypted or Disk Encryption. Note This parameter is available only for instances in elastic storage mode.
   CMK	The encryption key of disks. This parameter is available only when you select Elastic Storage Mode and Disk Encryption.
   Single Node Storage Capacity	The storage capacity of each node in the instance. Unit: GB. Valid values: 50 to 6000. The value must be a multiple of 50. Note This parameter is available only for instances in elastic storage mode.
   Network Type	The network type of the instance. The value is automatically set to VPC.
   VPC	The ID of the virtual private cloud (VPC) in which the instance resides. A VPC is an isolated virtual network that provides higher security and higher performance than the classic network. Before you configure this parameter, make sure that a VPC and a vSwitch are created in the region where you want to create the instance. For more information, see Create and manage a VPC.
   vSwitch	The vSwitch to which the instance is connected.
   Resource Group	The resource group to which the instance belongs. For more information about resource groups, see What is Resource Management?
   Sample Data	Specifies whether to load sample data to the instance. For information about the sample dataset, see Manage the sample dataset.
   Duration	The subscription duration of the instance. Note This parameter is available only when you set the Product Type parameter to Subscription.

5. Click Buy Now.

6. On the Confirm Order page, perform the following operations based on the value of the Product Type parameter:

   • Subscription

     1. Confirm the information in the Parameters section, read and select the Terms of Service, and then click Pay.

     2. On the Purchase page, click Subscribe.

   • Pay-as-you-go

     Confirm the information in the Parameters section, read and select the Terms of Service, and then click Activate Now.

7. After the instance is created, go to the Instances page to view the instance.

   Note

   It takes a period of time to initialize an AnalyticDB for PostgreSQL instance. You can perform operations only when the instance is in the Running state.

Related operations

FAQ

What do I do if the The DBInstance vswitch id is not valid error is returned when I fail to purchase an AnalyticDB for PostgreSQL instance?

Cause: No vSwitch is selected.

Solution: Select a vSwitch that is deployed in the current VPC. If no vSwitch is available in the VPC, create a vSwitch. For more information, see Create and manage a vSwitch.