Database Migration Service | Google Databases

Introduction

Google Cloud Database Migration Service (DMS) is a powerful tool that helps you migrate your databases to Google Cloud with minimal downtime. This tutorial will guide you through the process of setting up and using DMS to migrate your on-premises or cloud-hosted databases to Google Cloud.

Prerequisites

Before you start, ensure you have the following:

A Google Cloud project with billing enabled.
Administrative access to the source and target databases.
Google Cloud SDK installed on your local machine.
Basic knowledge of SQL and database management.

Step 1: Set Up Google Cloud Environment

First, set up your Google Cloud environment by creating a new project or selecting an existing one.

To create a new project:

gcloud projects create my-database-migration-project --set-as-default

Next, enable the Database Migration API:

gcloud services enable datamigration.googleapis.com

Step 2: Create a Connection Profile

Create a connection profile for your source database. This profile contains the connection details required to access the database.

For example, to create a MySQL connection profile:

gcloud beta sql connect my-sql-instance --user=root

Provide the necessary details such as hostname, port, username, and password.

Step 3: Create a Migration Job

Next, create a migration job to define the source and destination databases and configure the migration process.

gcloud beta sql import sql my-instance gs://my-bucket/my-database.sql

Specify the source connection profile, destination instance, and other configurations such as migration type (full or continuous).

Step 4: Start the Migration

Once the migration job is created, start the migration process.

To start the migration job:

gcloud beta sql import sql my-instance gs://my-bucket/my-database.sql

Monitor the migration process through the Google Cloud Console or using the gcloud command-line tool.

Step 5: Verify the Migration

After the migration is complete, verify that the data has been successfully migrated to the target database.

To verify the data:

gcloud sql databases list --instance=my-instance

Check for any discrepancies or errors and resolve them as needed.

Conclusion

In this tutorial, you have learned how to use Google Cloud Database Migration Service to migrate your databases to Google Cloud. By following these steps, you can ensure a smooth and efficient migration process with minimal downtime.