How to estimate RMAN incremental backup size using block change tracking file
Last updated on APRIL 26, 2017
Applies to:Oracle Database - Enterprise Edition - Version 10.1.0.2 and later
Zero Data Loss Recovery Appliance Software - Version 220.127.116.11.0 and later
Information in this document applies to any platform.
***Checked for relevance on 7-Dec-2015***
Customer wants to estimate their incremental backup size for disk / tape storage sizing purposes. The block change tracking (BCT) file tracks which database blocks were changed since the last RMAN backup, so that RMAN incremental backups only need to read and write the changed blocks. The change tracking file data can also be used to estimate future incremental backup size.
Sign In with your My Oracle Support account
Don't have a My Oracle Support account? Click to get started
My Oracle Support provides customers with access to over a
Million Knowledge Articles and hundreds of Community platforms