Oracle : Ошибка ORA-19586

"%s k-byte limit is too small to hold piece directory"
*Cause: The user-specified limit for MAXPIECESIZE for this channel
is not enough to hold the backup set control data.
*Action: Allocate a channel specifying a larget valule for MAXPIECESIZE
and retry the operation.

Попробовать перевести

Поискать эту ошибку на форуме