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How to Determine Size Required for Oracle RAC Database

Last Modified: 2020-11-29
Need to provide our hardware group with size information for Oracle RMAN database backups.  What is a good method to determine size and growth?  We would like to keep 4 backups and have archivelog mode turned on.  Current size of database is 850 GB, e.g. total of allocated for all tablespaces.
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