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Viscosity North America

On December 8, 2012, Posted by , In ASM,Data Guard,Exadata,Linux,RAC,RMAN, With Comments Off on Viscosity North America

  Viscosity’s Core Competency centers arounds Oracle Real Application Clusters (RAC).   Because we are the top Oracle RAC Experts, we intimately know storage architecture, network infrastructure, operating systems, and most importantly, Oracle RAC database interactions within the ecosystem.   … Continue reading

Delete Archivelogs in Data Guard After Archivelogs are Shipped to the Standby Site

On October 13, 2012, Posted by , In Data Guard, With Comments Off on Delete Archivelogs in Data Guard After Archivelogs are Shipped to the Standby Site

RMAN> show all; RMAN configuration parameters for database with db_unique_name NRSP are: CONFIGURE RETENTION POLICY TO RECOVERY WINDOW OF 7 DAYS; CONFIGURE BACKUP OPTIMIZATION OFF; # default CONFIGURE DEFAULT DEVICE TYPE TO DISK; # default CONFIGURE CONTROLFILE AUTOBACKUP OFF; # … Continue reading

NFS Options for Performance

On September 29, 2012, Posted by , With Comments Off on NFS Options for Performance

Most DBAs do not understand NFS mount options.  As RAC, Infrastructure, and Virtualization DBAs, we need to know what the NFS options mean and closely follow industry trends as to what options are adopted into best practices.  We need to … Continue reading

Tuning RMAN with Buffer Memory Parameters

On September 29, 2012, Posted by , In Exadata,ZFSSA, With Comments Off on Tuning RMAN with Buffer Memory Parameters

For RMAN Backups to disk (D2D) with ZFS Storage Appliance, you need to review MOS Note:  1072545.1: RMAN Performance Tuning Using Buffer Memory Parameters.     You can effectively optimize high-bandwidth low latency backups and restores using Oracle RMAN and the … Continue reading

ZFSSA Simulator Configuration

On September 28, 2012, Posted by , In ZFSSA, With Comments Off on ZFSSA Simulator Configuration
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