jim3cantos wrote:I refer to the "merge overhead" indicated in the KB when the destination of the backup copy job is a rotated disk
The KB is simply wrong. temp file is not used during merge of increment into full backup file, changes are merged into the full directly (temp file is used in case of GFS and compact operations, though).
jim3cantos wrote:I think so but in fact we use the incremental (recommended) method for backup jobs. Isn't the situation the same in this case?, i.e. the changes of the oldest incremental backup are injected directly into the full backup file?
With the forever forward incremental backup method, the oldest increment is merged into the full backup file, right. However, in case of rotated drives, backup copy job implements retention algorithm differently
, depending on the backup repository type.