ZDM (Zero Downtime Migration) is Oracle's tool for migrating databases to the Oracle Cloud with zero downtime and data loss. It supports both physical and logical migration methods. Upcoming enhancements include logical migration capabilities, cross-platform and cross-version support, and centralized logging of fleet migrations to Oracle Cloud Object Storage. ZDM leverages Oracle Maximum Availability Architecture best practices to provide simple, reliable database migrations to the Oracle Cloud.

1. Oracle ZDM - Zero Downtime Migration
Next Generation Oracle Cloud Database Migration
Kamalesh Ramasamy
Principal Member of Technical Staff
Oracle Database Cloud Development
Copyright © 2020 Oracle and/or its affiliates.

2. The following is intended to outline our general product direction. It is intended for information purposes
only, and may not be incorporated into any contract. It is not a commitment to deliver any material, code,
or functionality, and should not be relied upon in making purchasing decisions. The development,
release, timing, and pricing of any features or functionality described for Oracle’s products may change
and remains at the sole discretion of Oracle Corporation.
Statements in this presentation relating to Oracle’s future plans, expectations, beliefs, intentions and
prospects are “forward-looking statements” and are subject to material risks and uncertainties. A detailed
discussion of these factors and other risks that affect our business is contained in Oracle’s Securities and
Exchange Commission (SEC) filings, including our most recent reports on Form 10-K and Form 10-Q
under the heading “Risk Factors.” These filings are available on the SEC’s website or on Oracle’s website
at http://www.oracle.com/investor. All information in this presentation is current as of September 2020
and Oracle undertakes no duty to update any statement in light of new information or future events.
Safe Harbor
Copyright © 2020 Oracle and/or its affiliates.

3. Director of Development
Oracle ZDM and FPP
Copyright © 2020 Oracle and/or its affiliates.
Sam Ravindhran
Ricardo Gonzalez Senior Principal Product Manager
Oracle Database Cloud Migration
Zero Downtime Migration

4. Agenda
1. ZDM Overview
2. ZDM Installation and Command Line interface
3. ZDM Migrating to Oracle Cloud – Methods
4. The Future of ZDM
1. ZDM Logical Migration
5. Q & A
Copyright © 2020 Oracle and/or its affiliates.

5. Zero Downtime
Migration
5
Today
ZDM

6. Zero Downtime Migration Overview
Copyright © 2020 Oracle and/or its affiliates.
FreeLeverages Oracle
MAA best practices
24
Simple Zero data loss

7. Zero Downtime Migration
Copyright © 2020 Oracle and/or its affiliates.
Simple Comprehensive Fleet Scale
Single Button Approach
Extensive checks prior to Migration
Extensive checks post Migration
Resumable
Dry-run option
Centralized
Scheduled Operations
Command Deck
Audit Trail
MAA Compliant
Customizable Workflow
Migrations in Parallel
Jobs Framework

8. Zero Downtime Migration Today
Sources Targets Cloud platform
8
Physical
Online
&
Offline

9. ZDM – Installation and CLI
Copyright © 2020 Oracle and/or its affiliates.

10. Zero Downtime Migration
Copyright © 2020 Oracle and/or its affiliates.
Installation
• Download - https://www.oracle.com/database/technologies/rac/zdm.html
• Install ZDM in Linux Host (Oracle Linux 7)
• As zdmuser
• ./zdminstall.sh setup oraclehome=zdm_oracle_home
oraclebase=zdm_base_directory ziploc=zdm_software_location
-zdm
• oraclehome ZDM toolkit installation home
• oraclebase ZDM config files, logs and other artifacts
• ziploc ZDM compressed shiphome file

11. Zero Downtime Migration
Copyright © 2020 Oracle and/or its affiliates.
Connectivity
• SSH keys
• ZDM service node require ssh keys or root access to both source/target
• Password-less SSH key files
• Customized Connectivity access feasible through a custom adapter
• RAC - Access to one of the nodes is adequate
• Supports Bastion Server & HTTP Proxy

12. ZDM prerequisites
Copyright © 2020 Oracle and/or its affiliates.
Target DB
• A Placeholder DB using OCI console must be created
• Should be in Open Mode
• Different Patch level ?
• Cloud and On-Premises Database must be at the same patch level or
higher
• TDE Wallet status should be set to OPEN and WALLET_TYPE
should be set to AUTOLOGIN

13. ZDM CLI
• Migrate database - ( job ID is assigned for this migration task)
zdmcli migrate database {-eval | -listphases | -pauseafter <phase>}
• Query Job
zdmcli query job -jobid job-id
• Resume Job
zdmcli resume job -jobid job-id
• Abort migration
zdmcli abort job -jobid job-id
• Audit migration
zdmcli audit job -jobid job-id
Copyright © 2020 Oracle and/or its affiliates.

14. ZDM – Migrating to Oracle Cloud
Copyright © 2020 Oracle and/or its affiliates.

15. ZDM Migrating to Oracle Cloud
Pick right
migration
method
• ONLINE Vs
OFFLINE
Migrate &
Switch
• Prepare ZDM
response file
• Plan &
execute job
• Phased
migration
1 2 3
Copyright © 2020 Oracle and/or its affiliates.
Migration
Preparation
• Fulfil
Prerequisites
• Step by Step
Guide à
www.oracle.co
m/goto/zdm

16. ZDM Migration Methods
Copyright © 2020 Oracle and/or its affiliates.
Migration Method High Availability Backup or Data Transfer Medium
PHYSICAL
Block Copy
OFFLINE
Backup - Restore
1. Oracle Cloud Object Store
2. Oracle ZDLRA
3. Shared Storage – NFS
ONLINE
Data Guard - Physical Standby - Switchover

17. ZDM Physical Migration
Copyright © 2020 Oracle and/or its affiliates.
User
Apps
SQLnet
SSH SSH
ZDM
Primary DB Standby DB
Backup
Location
https
Overall Architecture

18. Zero Downtime Migration
Physical Online Workflow in 8 steps
Summary
18
Download & Configure ZDM1
ZDM Starts Database Migration2
ZDM Connects the Source Database to Backup Location3
ZDM Orchestrates Transfer of DB Backup Files4
ZDM Instantiates a Standby DB5
ZDM Synchronizes Primary & Standby6
ZDM Switches Over & Swaps Roles7
ZDM Finalizes the Migration Process8

20. ZDM 19.7 Enhancements
Copyright © 2020 Oracle and/or its affiliates.
• Resiliency – Auto retry on network interruption
• Datapatch execution part of workflow
• Wallet based password input
• Migration metrics collection
• Live Backup and Restore job progress monitoring and reporting
• Fleet level migration log aggregation to Oracle Cloud OSS

21. ZDM 19.7 Enhancements
Copyright © 2020 Oracle and/or its affiliates.
User
Apps
SSH SSH
ZDM
Primary DB Standby DB
Fleet Migration
Metrics, Progress &
Logs
Location
Migration logs
Contd…
Migration logs
Migration Progress &
Metrics

22. Zero Downtime
Migration
22
The Future
ZDM
Coming Soon

23. Zero Downtime Migration - The Future
Sources Targets Cloud platform
23
Cross
Version Ok
Non-CDB
to
PDB Ok
*Dedicated
&
Shared
*Dedicated
&
Shared
Coming Soon
Logical Physical
Online
&
Offline
Cross
Platform

24. ZDM Migration Methods
Copyright © 2020 Oracle and/or its affiliates.
Migration Method High Availability Backup or Data Transfer Medium
PHYSICAL
Block Copy
OFFLINE
Backup - Restore
1. Oracle Cloud Object Store
2. Oracle ZDLRA
3. Shared Storage – NFSONLINE
Data Guard - Physical Standby - Switchover
LOGICAL
SQL Unload - Reload
OFFLINE
Oracle Data Pump
1. Oracle Cloud Object Store
1. oci-cli
2. Shared Storage – NFS
3. Secure Copy
4. DBLINK
ONLINE
Oracle Data Pump + Oracle Golden Gate
Coming Soon

25. ZDM Logical Migration
• Migration Method using Data Pump & GoldenGate
• OFFLINE_LOGICAL
• ONLINE_LOGICAL
• Integrates Oracle Cloud Premigration Advisor
• Supports ADB and non-ADB system as target
• MAA Best Practices compliant
Copyright © 2020 Oracle and/or its affiliates.
Coming Soon

26. Copyright © 2020 Oracle and/or its affiliates.
Worfklow
Validation Setup Migration Post Actions
• Workflow is defined in 4 categories divided in operational phases
• Workflow can be customized by inserting plug-ins on each phase
• Migration can be paused and resumed at all operational phases
Coming SoonZDM Logical Migration

27. ZDM Logical Migration – Architecture with OCI Object Storage
27
Object
Storage
On-Premises
Source DB
ZDM
OCI Compute
GG Hub
Trail
Files
User
Apps
Extract Replicat
OCI DBCS
ExaCS
ExaCC
Autonomous
Database
Coming Soon

28. 28
1
Step 1 – Download & Configure ZDM
Online Logical Migration with Object Storage
On-Premises
Source DB
ZDM
www.oracle.com/goto/zdm
User
AppsComing Soon

29. 29
2
Step 2 – ZDM Connects to Source and Target Database and performs validations
Online Logical Migration with Object Storage
On-Premises
Source DB
ZDM
User
Apps
OCI DBCS
ExaCS
ExaCC
Autonomous
Database
Coming Soon
Validate Validate

30. 30
Step 3 – ZDM Connects to the OCI Object Storage and performs validations
Online Logical Migration with Object Storage
On-Premises
Source DB
ZDM
User
Apps
Object
Storage
3
OCI DBCS
ExaCS
ExaCC
Coming Soon
Autonomous
Database
Validate

31. 31
Step 4 – ZDM Configures Oracle GoldenGate on Cloud Market Place and starts capturing
Source DB Transactions
Online Logical Migration with Object Storage
On-Premises
Source DB
ZDM
User
Apps
Object
Storage
4
OCI Compute
GG Hub
Trail
Files
Extract
OCI DBCS
ExaCS
ExaCC
Autonomous
Database
Coming Soon

32. 32
Step 5 – ZDM Starts a Network Data Pump Export Job and Transfers the Files from the Source DB
Server to the OCI Object Storage
Online Logical Migration with Object Storage
On-Premises
Source DB
ZDM
User
Apps
Object
Storage
5
OCI Compute
GG Hub
Trail
Files
Extract
OCI DBCS
ExaCS
ExaCC
Autonomous
Database
Coming Soon

33. 33
Step 6 – ZDM Downloads the Dump Files to a local File system in the Target and starts a Data
Pump Import Job into the Target Database
Online Logical Migration with Object Storage
On-Premises
Source DB
ZDM
User
Apps
Object
Storage
6OCI Compute
GG Hub
Trail
Files
Extract
OCI DBCS
ExaCS
ExaCC
Coming Soon
Autonomous
Database

34. 34
Step 7 – ZDM Configures Oracle GoldenGate on Cloud Market Place and starts applying changes
via the Replicat
Online Logical Migration with Object Storage
On-Premises
Source DB
ZDM
User
Apps
Object
Storage
OCI Compute
GG Hub
Trail
Files
Replicat
7
Extract
OCI DBCS
ExaCS
ExaCC
Autonomous
Database
Coming Soon

35. 35
Step 8 – ZDM Switches Over Clients to the Target Database
Online Logical Migration with Object Storage
On-Premises
Source DB
ZDM
User
Apps
Object
Storage
OCI Compute
GG Hub
Trail
Files
ReplicatExtract
8
OCI DBCS
ExaCS
ExaCC
Autonomous
Database
Coming Soon

36. 36
Step 9 – Finalize at will and ZDM Cleans the GoldenGate Deployment
Online Logical Migration with Object Storage
On-Premises
Source DB
ZDM
User
Apps
8
OCI DBCS
ExaCS
Autonomous
Database
Coming Soon

37. Data Pump Dump Transfer options
• Oracle Cloud OSS
• Shared path
• Secure Copy
• Transfer Server
ZDM Offline Logical
© 2020 Oracle
Coming Soon

38. 38
Dumps stored in shared storage
Offline Logical Migration with Shared Storage
On-Premises
Source DB
ZDM
User
Apps
ExaCC
Coming Soon
NFS

39. 39
Transfer Dumps to Target server via secure copy
Offline Logical Migration with Secure copy
On-Premises
Source DB
ZDM
User
Apps
SCP or RSYNC
ExaCC
Coming Soon

40. Dump Transfer from Transfer Server
• Overcome connectivity constraints
• Reduce workload on DB server
• Utilize oci cli to upload to OSS
ZDM Offline Logical
© 2020 Oracle
Coming Soon

41. 41
Transfer Server - Use Case#1
Offline Logical Migration with Transfer Server
On-Premises
Source DB
ZDM
User
Apps
ExaCC
Coming Soon
Transfer
Server
Copy
NFS

42. 42
Transfer Server – Use case#2
Offline Logical Migration with Transfer Server
On-Premises
Source DB
ZDM
User
Apps
OCI DBCS
ExaCS
ExaCC
Coming Soon
Autonomous
Database
Transfer
Server
Object
Storage
NFS

43. 43
Transfer Server – Use case#2a
Offline Logical Migration with Transfer Server
On-Premises
Source DB
ZDM
User
Apps
OCI DBCS
ExaCS
ExaCC
Coming Soon
Autonomous
Database
Transfer
Server
Object
Storage
oci-cli
NFS

44. 44
Transfer Server – Use case#3
Offline Logical Migration with Transfer Server
On-Premises
Source DB
ZDM
User
Apps
OCI DBCS
ExaCS
ExaCC
Coming Soon
Autonomous
Database
Transfer
Server
Object
Storage
oci-cli
NFS

45. 45
Transfer Server - Use Case#4
Offline Logical Migration with Transfer Server
On-Premises
Source DB
ZDM
User
Apps
ExaCC
Coming Soon
Source
Transfer Server
Copy
NFS
Target
Transfer Server
NFS

46. ZDM Logical Migration
• ZDM executes Oracle Cloud Premigration Advisor
• Performs ONLINE and OFFLINE specific checks
• Identifies migration BLOCKERS & WARNINGS
• Unsupported Data Types
• User defined objects in SYS
• XML type schemas, tables, columns
• Users with elevated privileges
• LONG, LONG RAW types - unsupported in ADW
Copyright © 2020 Oracle and/or its affiliates.
Coming Soon
Prechecks For Unsupported Data Types in Source Database

47. ZDM Logical Migration
• Autonomous default tablespace
• REMAP Tablespaces
• PARALLEL set by default number of OCPUs
• EXCLUDE like index, cluster, db_link etc
• Compression & Encryption enabled
• Other recommendations
Copyright © 2020 Oracle and/or its affiliates.
Coming Soon
Data Pump optimal defaults

48. ZDM Logical Migration
Copyright © 2020 Oracle and/or its affiliates.
Coming Soon
Sample Output

49. ZDM Logical Migration
Copyright © 2020 Oracle and/or its affiliates.
Coming Soon
Sample Job Output

50. ZDM Logical Migration
Copyright © 2020 Oracle and/or its affiliates.
Coming Soon
Sample Job Output

51. Zero Downtime Migration
Copyright © 2020 Oracle and/or its affiliates.
Simple Migration to the Oracle Cloud
FREE
Leverages Oracle MAA Best Practices
Zero Data Loss
Cloud Security Enabled

52. 52
www.oracle.com/goto/zdm
Copyright © 2020 Oracle and/or its affiliates.

53. 53
www.oracle.com/goto/move
Copyright © 2020 Oracle and/or its affiliates.

54. Q&A
www.oracle.com/goto/zdm
www.oracle.com/goto/move

55. Thank you
Oracle Zero Downtime Migration
Product Development
55
Confidential – © 2019 Oracle Internal/Restricted/Highly Restricted