Marc Wagner

dbvisit StandbyMP with Oracle SE2 – switchover error with ORA-27125

After having recently deployed a new customer system running Oracle SE2 databases in Disaster Recovery environment using dbvisit StandbyMP v11.4.1 on Oracle Linux 8.8, I did some final test running a switchover. The switchover failed with following error: ORA-27125: unable(…)

dbvisit StandbyMP with Oracle SE2 – ERROR_CODE:808 Database in unknown mode (94). Setup cannot proceed.

I recently deployed a new installation at one customer with 2 linux servers and 2 Oracle SE2 databases with dbvisit StandbyMP v11 disaster recovery solution. I prepared the standby database using RMAN duplication method, and then just wanted to create(…)

Oracle Zero Downtime Migration : Offline logical database migration from on-premises to Autonomous DB 

I have recently written a blog introducing the Oracle ZDM (Zero Downtime Migration) tool : https://www.dbi-services.com/blog/zero-downtime-migration-zdm-to-oracle-cloud-infrastructure-oci/ I have also done some tests performing an offline logical database migration from a database running on an OCI(…)

Zero Downtime Migration (ZDM) to Oracle Cloud Infrastructure (OCI)

The question to migrate or not to the Cloud comes more and more often now. There are some added values to go to the Cloud as analytics capabilities, scalability and flexibility, cost saving, no dedicated hardware and its related maintenance,(…)

ODA vnetwork bridge with no IP address

It is not mandatory to setup an IP address on a bridge interface. A bridge forwards packets at MAC layer. But of course, if I would like to reach the DB System or the Compute Instance from the ODA, then(…)

Want to easily test Dbvisit StandbyMP for Oracle SE?

As you might know Dbvisit StandbyMP is a great Disaster Recovery solution for Oracle SE databases. Dbvisit recently communicated, providing now, a Test Drive system for customer to easily try the product and for partner to easily have a Demo(…)

ODA and Dbvisit : Create a SNAPSHOT database?

As you might know, Oracle doesn't offer any disaster recovery solution for their Oracle Standard Edition databases. Oracle Data Guard ensures high availability, data protection and disaster recovery for Oracle Enterprise Edition database only. Dbvisit is a great disaster recovery(…)

Can we benefit from Oracle SEHA relocate and failover with dbvisit StandbyMP switchover?

I recently wrote an article about how to combine Oracle SEHA database running on ODA 2-HA and dbvisit StandbyMP solution. See my article here : https://www.dbi-services.com/blog/combine-oracle-seha-on-oda-with-dbvisit-standbymp/. But are really all those high availability and disaster recovering(…)

Combine Oracle SEHA on ODA with Dbvisit StandbyMP?

I recently blog on Oracle SEHA on ODA, see my article https://www.dbi-services.com/blog/seha-on-oda/. Oracle SEHA is used for High Availability for Standard Edition. Dbvisit Standby is a Disaster Recovery well known application designed for Oracle Standard Edition.

OCI : How to change VCN Name?

Starting my first experience with Oracle Cloud Infrastructure, I played with my lab and wanted to change my VCN name. I thought it might be more than easily with the Web Console, but could realise this was not possible. I(…)