oracle10g - Backup Time reduction question -

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i told full db backup of db size 65gb takes between 4-5hrs in oracle 10g. normal ?

we have separate program activity take 1.5 hrs. need perform full backup , program activity in single session means 5 + 1.5 = 6.5 hrs needed perform whole session. given maximum of 5-hr activity change window.

question 1) there way in oracle 10g backup delta change occurred db (but dont know tables updated in db backup specifically) between 2 days ? if so, how ? 2) easy import delta-changed tables in db in order reduce backup time ? if so, how ?

thanks

actually have seen 65g database take 10 hrs. backups highly tunable medium. backup rate depends on many factors including medium being backed . setup i.e rman vs non rman . disk vs tape . if can add little more facts questions. answer can possible . oracle 10g introduced plethora of optimizations in backup area block change tracking file , recover as. details can found in oracle 10.2 backup & recover guide @ incremental strategy tuning backups area.


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