Oracle’s Real Application Cluster database architecture for SAP Applications is a new shared cache architecture that overcomes the limitations of traditional shared nothing and shared disk approaches to provide highly scalable and available database systems for SAP customers
Archive for the ‘UNIX Database Info’ Category
Oracle 10g RAC the Database for Deploying SAP Applications
Dienstag, Februar 24th, 2009Ingres Database 9.2 – Incremental Rollforwarddb
Dienstag, Februar 10th, 2009The incremental rollforwarddb feature allows the journals from a database to be incrementally applied, as they are generated, to a backup copy of the database. This feature can be used to minimize downtime in the event that the backup database is needed for disaster recovery
Start the incremental rollforwarddb by issuing the following command
# rollforwarddb dbname +c -j -incremental
Issue one or more of the following commands to cause rollforwarddb to discover new journals and apply them
# rollforwarddb dbname -c +j -norollback
The database remains inconsistent and readonly
Discover and apply new journals by issuing the following command
# rollforwarddb dbname -c +j -rollback
The incremental rollforwarddb ends, and the database is marked consistent and updateable
Ingres Database 9.2 – offered with ease of use enhancements
Dienstag, Februar 10th, 2009New Features in Ingres Database 9.2 continue to reduce the time, complexity, and database administrators (DBA) requirements by eliminating, simplifying and automating many tasks traditionally associated with maintaining an business-class database. Upgrading from previous releases of Ingres Database is a simple, highly automated task