Tag: Data Guard

How to move your Exadata Cloud Service Databases to X9M with Zero Downtime

Introduction Oracle constantly introduces new Exadata Platforms providing higher performance, lower latency, extended storage, and optimized software and networking. The latest Exadata X9M generation is available on-premises, cloud@customer, and public cloud. AND, it comes at the same price as the previous generation!!! It is as simple as this: higher performance + same price = reduced…

How to measure Network Latency for Oracle Data Guard Replication

Introduction Oracle Data Guard replicates data from the primary to one or multiple standby databases for high availability and disaster recovery. The decision to transfer the redo synchronously or asynchronously depends on your RTO and RPO. Synchronous redo transport provides zero data loss and lower recovery time, but your application needs to wait until the…

How to create a Single Service Name in Data Guard Environments on Oracle Cloud

Introduction Oracle Data Guard provides high availability and disaster recovery by replicating data from the primary to standby databases. In case of an outage on the primary site or for maintenance operation, a standby database becomes a primary and continues serving application requests. This role switch should be transparent for applications, not requiring any changes…

How PDB Recovery Isolation in 21c makes your Life easier

Introduction We already talked about remote PDB cloning in Data Guard environments in previous blog posts. As the datafiles of the cloned PDB are not present on the standby database, there are several manual steps to be followed to create the PDB on the standby site in 19c: Using Transient no-standby PDB. Using STANDBYS=NONE followed…

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.…