Last updated on FEBRUARY 26, 2015
Applies to:Oracle Database - Enterprise Edition - Version 22.214.171.124 to 126.96.36.199 [Release 11.1 to 11.2]
Information in this document applies to any platform.
RMAN not using Unused Block Compression/Optimization during backup.
ORA-19883 and ORA-19864 errors seen in the alert.log file of the database when an RMAN backup is taken with "Unused Block Optimization".
This usually happens when RMAN is taking a backup of a bigfile tablepace and that tablespace has reached certain size, usually after reaching more than 2.5Tb, but some customer have seen those errors only when the bigfile is more than 4TB.
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