orls

The problem originated from a 12c database of the customer and needs to be started to the non-real time apply mode, but the execution is found:Alter database recover managed standby database cancel;Alter database recover managed standby database

For non-Data Guard patch installation tutorials, refer to [Oracle] CPU/PSU patch installation detailed tutorial. Data Guard requires both Primary and Standby patches, so the steps are more complex, the main steps are as follows:1. Stop the log

1:standby Database:Sql> select * from V$version; BANNER------------------------------------------------------------------------------------------------------------------- -----------------------------------Oracle Database 11g Enterprise Edition

12c Dataguard provides a new syntax for implementing DG Switchover. Below is the test. Master Library Execution Check Sql> ALTER DATABASE switchover to Orcldg VERIFY; --Main library for switch checkALTER DATABASE switchover to Orcldg VERIFY*ERROR

Environment Overview: Good Dataguard, build reference: http://blog.51cto.com/snowhill/1923591Source: db_name:db RACPreparation: DB_NAME:SBDB1 stand-alone1 Enable DGMGRLRelated parameters: Dg_broker_startDg_broker_config_file1

Non-Data guard patch installation tutorials refer to the [Oracle] CPU/PSU patch installation detailed tutorial, where Data Guard requires primary and standby to be patched at the same time, so the steps are more complex and the main steps are as

Build the Environment: OS:SOLARIS10 x86-64 Db:oracle 11.2.0 Main Library Host: Sol01 Repository Host: Sol02 2 Master Library Deployment steps 2.1 Master Library Operations Create an archive directory and open archive

Configure Flashbash Database Parameters ALTER system SET db_recovery_file_dest= '/dg/fra ';ALTER system SET db_recovery_file_dest_size=10g;ALTER system SET db_flashback_retention_target=1440;ALTER DATABASE flashback on; Primary library to build

Environment Introduction: a two-node single-instance Linux + oracle11.2.0.3 + customized uard maximize availability environment was set up a few days ago. Fault description: synchronization failed today. An error message is found in the trace file

To test a DG problem, set up a test environment on Vmware and place primary and standby on the same host.I will not repeat the setup process, but I encountered some problems at the end. Record them here for future reference. ---- Some commands