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Zero Downtime Migration

Oracle Zero Downtime Migration (ZDM) is a simple, automated solution for moving Oracle Databases into Oracle Cloud Infrastructure (OCI). Oracle Zero Downtime Migration supports direct and seamless migration of Oracle Databases to any Oracle-owned infrastructure, including Exadata Database Machine on-premises, Exadata Cloud at Customer, and Oracle Cloud Infrastructure.

Oracle Zero Downtime Migration use cases

Migrate on-premises databases to Oracle Cloud Infrastructure

Oracle Zero Downtime Migration is Oracle’s recommended solution to migrate Oracle Databases to OCI using Oracle Maximum Availability Architecture (MAA).

Learn more about migrating your on-premises databases to Oracle Cloud (ZIP)

Migrate on-premises Oracle Databases to Oracle Exadata

Oracle Zero Downtime Migration migrates your database to Oracle Exadata, leveraging the same automation and orchestration available for cloud migration.

Learn more about migrating your on-premises databases to Oracle Exadata

Migrate Oracle Databases on AWS RDS to Oracle Cloud Infrastructure

Migrate your Oracle databases on AWS RDS to Oracle Database using ZDM's automation and orchestration, free of charge.

Learn more about migrating your Oracle Database on AWS RDS to Oracle Cloud

Offline Migration with a Backup location

Offline Migration with a Backup location Diagram of physical offline migration, showing all required components with user applications pointing to the on-premises source database. The source database is connected to a backup location via https, the same way the backup location is connected to the target database.
These workflows are supported for Oracle Base Database Service, Exadata Cloud Service, Exadata Cloud@Customer, and on-premises Exadata.

Online Migration with a Backup location

Online Migration with a Backup location Diagram of physical online migration with backup location, showing all required components with user applications pointing to the on-premises source database. The source database is connected to a backup location via https, the same way the backup location is connected to the target database. Then, ZDM is connected to both source and target via SSH, and the source database is connected to the target database via SQLnet.
These workflows are supported for Oracle Base Database Service, Exadata Cloud Service, Exadata Cloud@Customer, and on-premises Exadata.

Migration with Direct Data Transfer

Migration with Direct Data Transfer Diagram of physical online migration with direct data transfer, showing all required components with user applications pointing to the on-premises source database. ZDM is connected to both source and target via SSH, and the source database is connected to the target database via SQLnet.
These workflows are supported for Oracle Base Database Service, Exadata Cloud Service, Exadata Cloud@Customer, and on-premises Exadata.

Offline Migration with a Backup location

Offline Migration with a Backup location Diagram of logical offline migration, showing all required components with user applications pointing to the on-premises source database. The source database is connected to a backup location via https, the same way the backup location is connected to the target database. Data Pump flows for export from the source and import from the target. Then, ZDM is connected to both source and target via SSH.
This workflow is supported for Oracle Base Database Service, Exadata Cloud Service, Exadata Cloud@Customer, on-premises Exadata, and Oracle Autonomous Database.

Online Migration with a Backup location

Online Migration with a Backup location Diagram of Logical Online Migration, showing all required components, user applications pointing to the on-premises source database. The source database connected to a Backup Location via https, same way the backup location is connected to the target database. Data Pump flows for export from the source and import from the target. Then, ZDM is connected to both source and target via SSH, and a GoldenGate hub with two microservices (a replicate and an extract) are connected respectively to the source and the target.
This workflow is supported for Oracle Base Database Service, Exadata Cloud Service, Exadata Cloud@Customer, on-premises Exadata, and Oracle Autonomous Database.

Supported sources and targets



Supported migration workflows and targets

Exadata On-Premises Base Database Service Oracle Exadata Database Service on Dedicated Infrastructure Oracle Exadata Database Service on Cloud@Customer Oracle Autonomous Database on Shared Exadata Infrastructure Oracle Autonomous Database on Dedicated Exadata Infrastructure
Physical Online Migration
yes
yes
yes
yes
no
no
Physical Offline Migration
yes
yes
yes
yes
no
no
Logical Online Migration
yes
yes
yes
yes
yes
yes
Logical Offline Migration
yes
yes
yes
yes
yes
yes

Customers eliminate complexities with zero downtime

  • Cognizant chose to build a new data warehouse with Oracle Autonomous Data Warehouse, leveraging Oracle Zero Downtime Migration.

  • Logicalis Customer uses Oracle ZDM to Quickly Migrate Database Workloads to Oracle Cloud.

  • Learn how NEC empowers its customers with Oracle Zero Downtime Migration.

  • Cognizant minimized implementation risk by using Oracle Zero Downtime Migration to automatically transfer more than 24 terabytes of data to the Oracle Cloud—a process requiring just an hour of manual configuration instead of multiple days effort.

  • Learn how Virginia ABC accelerated data migration to OCI with Oracle Zero Downtime Migration.

Experience ZDM migration methodologies with Hands-On Labs

Oracle ZDM: Logical Online Migration to Autonomous Database
Oracle ZDM: Logical Online Migration to Autonomous Database
Oracle ZDM: Physical Online Migration with Backup Location to Co-Managed Databases in OCI
Oracle ZDM: Physical Online Migration with Backup Location to Co-Managed Databases in OCI
Oracle ZDM: Physical Offline Migration to Co-Managed Databases in OCI
Oracle ZDM: Physical Offline Migration to Co-Managed Databases in OCI

Related products and technologies

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