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.
Zero Downtime features and solutions
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
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.
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.
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.
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.
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.
Supported sources and targets
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Supported Sources
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Oracle Zero Downtime Migration-supported sources include Oracle Databases on-premises, on Oracle Cloud Infrastructure, and on Amazon Web Services RDS for Oracle.
- Supported Database versions
Oracle ZDM supports the following source database versions:
- Oracle Database 11g
- Oracle Database 12c
- Oracle Database 18c
- Oracle Database 19c
- Supported Configurations
Oracle ZDM supports the following source configurations:
- Oracle Database single instances
- Oracle Real Application Clusters (RAC) one-node databases
- Oracle Real Application Clusters (RAC) databases
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Supported target Oracle Database Cloud services
- Supported Oracle Database Cloud Services
Oracle Database on Oracle Cloud is available in a range of configurations, according to your needs. Oracle Zero Downtime Migration supports different target Oracle Database Cloud Services.
- Supported Oracle Database Cloud Services
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
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Cognizant chose to build a new data warehouse with Oracle Autonomous Data Warehouse, leveraging Oracle Zero Downtime Migration.
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Logicalis Customer uses Oracle ZDM to Quickly Migrate Database Workloads to Oracle Cloud.
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Learn how NEC empowers its customers with Oracle Zero Downtime Migration.
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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.
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Learn how Virginia ABC accelerated data migration to OCI with Oracle Zero Downtime Migration.
Experience ZDM migration methodologies with Hands-On Labs
Resources
Step-by-Step Guides
- Oracle ZDM Logical Migration to Autonomous Database (PDF)
- Oracle ZDM Logical Migration to Oracle Base Database Service/Exadata Database Service (PDF)
- Oracle ZDM Physical Migration to Oracle Base Database Service/Exadata Database Service (PDF)
- Oracle ZDM Logical Migration Performance Guidelines (PDF)
- Oracle PeopleSoft Application with Autonomous Database Shared Migration Guide (PDF)
Related products and technologies
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Exadata Database Machine
Exadata on-premises
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Exadata Cloud@Customer
Oracle Autonomous Database and Exadata Database Service delivered on-premises
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Autonomous Database
The future of Oracle Database
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Oracle Cloud Infrastructure
Oracle’s next-generation cloud
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