Standby

Considerations when backing up from the Oracle Standby Database (Data Guard) with rman to shared storage (NFS)

To reduce load on the Primary DB in a Data Guard configuration you may decide to do your rman backups from the Standby site. A very common approach today is to use NFS as the backup location, especially when(…)

Handling unified auditing spillover files on the standby-site

Switching to Oracle Unified Auditing may produce lots of data when e.g. auditing activities of the SYS-user. I.e. according the documentation you can do the following to audit similarly as in traditional auditing with audit_sys_operations=TRUE: SQL> CREATE AUDIT POLICY TOPLEVEL_ACTIONS(…)

Having multiple standby databases and cascading with dbvisit

Dbvisit standy is a disaster recovery solution that you will be able to use with Oracle standard edition. I have been working on a customer project where I had to setup a system having one primary and two standby databases.

18c PDB switchover

By Franck Pachot . In multitenant, the recovery and availability are at CDB level. But customers asked for a switchover at PDB level so Oracle has done that in 18c, based on refreshable PDBs. For this test I have two(…)

How to patch Postgres Plus Advanced Server in a Standby configuration

In the last post we looked at how you can patch a Postgres Plus Advanced server. Wouldn't it be nice, in a standby configuration, to patch the standby first without touching the master, then do a controlled(…)

Maintenance scenarios with EDB Failover Manager (3) – Witness node

In the last posts ( Maintenance scenarios with EDB Failover Manager (1) – Standby node , Maintenance scenarios with EDB Failover Manager (2) – Primary node ) we looked at how to perform maintenance(…)

Maintenance scenarios with EDB Failover Manager (2) – Primary node

In the last post I looked at how you can do maintenance operations on the standby node when you are working in a PostgreSQL cluster protected by EDB Failover Manager. In this post I'll look on how(…)

Maintenance scenarios with EDB Failover Manager (1) – Standby node

Recently at a customer we again implemented a PostgreSQL architecture as described some time ago. When we delivered the first draft of the documentation the question popped up how to handle maintenance tasks in a failover cluster(…)

12c Multitenant: PDB spfile parameters for standby database

By Franck Pachot . In multitenant, the spfile parameters at pluggable database level are not stored in the spfile but in the CDB$ROOT table SYS.PDB_SPFILE$ If you open the standby database in read only for reporting, which is one reason(…)

“ORA-01665: control file is not a standby control file”: what can I do?

You have certainly also received this error once in you Oracle DBA career: “ORA-01665: control file is not a standby control file” while trying to create a standby database with RMAN through a full database backup. In fact, the feature(…)