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Setting of CONFIGURE DATAFILE BACKUP COPIES parameter of RMAN

edited Aug 15, 2011 11:22PM in Database Backup and Recovery (MOSC) 2 commentsAnswered




Hi

we have a 11g R2 database and we are making nightly full backups of the database using backup sets
The backups are written to +FRA

We were wondering what is the impact of the following on our RMAN backups


CONFIGURE DATAFILE BACKUP COPIES FOR DEVICE TYPE DISK TO 1; # default

Would this mean that for each backup set, RMAN will create a copy of it?
So, for example, if the database size is 100GB and the full backup size is 60 GB, RMAN will
create 2 backup sets of 60 GB each and need to have 120 GB in FRA to store these?

What is oracle's recommendation on setting this parameter? What are the downside of setting it to ZERO?

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