Create a Read-Only Instance

This article describes how to create read-only instances including intra-city read-only instances and remote read-only instances.

Overview

For the purpose of reducing pressure of reading RDS general instances and realizing elastic expansion of database reading capability, you can create one or multiple read-only instances to meet the massive reading demand of database.

Prerequisites

  1. You have successfully created a general instance. For more information, see Create a General Instance.
  2. The system has successfully created an intra-city DR instance in the time segment you set.

Usage Guidelines

  1. Multiple intra-city read-only instances can be created. We recommend that you create no more than five read-only instances.
  2. Only one remote read-only instance can be created in each region.
  3. The storage specifications of a read-only instance are the same as that of the general instance by default.

Procedures

1.  Log in to the RDS Console.

2.  In the left navigation pane, click RDS-MySQL to enter the DBPaaS for RDS-MySQL page.

3.  Select the target region.

4.  Click Manage in the operation column of the target general instance and select Information tab.

5.  In the Information area, click CREATE READ ONLY INSTANCE on the right side of the page and enter the Create Read Only Instance page.

6.  In the Information of Main Instance area, view and check the basic information of a general instance.

7.  Create a read-only instance based on the following information.

Configuration item

Description

Region

The region of a read-only instance. You can select intra-city or remote region to create an intra-city or remote read-only instance based on the business demand.

Availability Zone

The availability zone of a read-only instance.

: A intra-city read-only instance can only be created in the availability zone of the intra-city DR instance.

Computing specifications

The computing specifications of a read-only instance include CPU and memory. You can select specifications different from that of a general instance to meet business demand.

Billing method

Billing method of a read-only instance is the same as that of the general instance and cannot be modified.

8. Click Confirm Order. Enter Order Confirmation page to confirm relevant information of the read-only instance.

9. Click Confirm Open.

Result

Method 1:

  1. On Payment Result page, click View Order to enter the Product Order page.
  2. The Status of target order is All finished.

Method 2:

In the left navigation pane, click RDS-MySQL. On the DBPaaS for RDS-MySQL page, select the region of the read-only instance. You can view the just created read-only instance and its Status turns from Pending into Running.

•   Intra-city read-only instance

•   Remote read-only instance

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