Tag: Migration

Why you should run your Oracle Database on Oracle Cloud

Introduction As IT environments are growing and becoming more complex, the need for standardization, cost reduction, and greater agility is raising more than ever. Cloud solutions provide customers with features and capabilities to exactly achieve these goals and satisfy their business demands. When it comes to moving Oracle databases to the cloud, you might ask…

Part 2/5: Zero Downtime Migration (ZDM) – Logical Online Migration using Oracle GoldenGate

Introduction ZDM version 21c supports logical migrations using Oracle GoldenGate. This makes it possible to migrate to Oracle Autonomous Database with zero downtime. This blog post provides a step by step instruction how to accordingly configure ZDM with the minimal parameters required. Data Pump will be used to create the initial load and GoldenGate extract…

Part 1/5: Zero Downtime Migration (ZDM) – Introduction & Installation

Introduction Oracle Zero Downtime Migration (ZDM) is a free to use software solution that allows you to automate your Oracle database migrations from on-premises to Oracle Cloud. Initially, ZDM supported Data Guard based migrations following the principles of Oracle Maximum Availability Architecture (MAA). To support Standard Edition migrations, ZDM uses RMAN backup and restore instead.…

Migrating from non-encrypted, non-CDB on local file system to encrypted PDB on ASM

Introduction Oracle Databases on Oracle Cloud are created using the Multitenant architecture. All databases are encrypted using Transparent Data Encryption (TDE) by default. All databases on Exadata, Bare Metal machines, and RAC on Virtual Machines use ASM storage management. For Single Instance databases on Virtual Machine DB systems you have the choice between Logical Volume…

Minimal Downtime Patching using Refreshable PDB Clones

Introduction Oracle Multitenant allows you to clone PDBs from one CDB to another easily, even though the source and target CDBs were of different patch levels, e.g. 19.9 and 19.10, and even different editions like moving from SE to EE. The only thing you’ll need is to run datapatch afterwards. Unplug and Plug the PDB…