What is top events in Statpack Report? RMAN can make CPU % peak and high IO. You should not schedule in peak time. Data Pump also spend much I/O. Surachart Opun Oracle ACE, Contributor (Oracle User Group in Thailand) http://surachartopun.com skye: surachart_op On Fri, Aug 26, 2011 at 3:10 PM, mek s <sidi.bouzid.meknessy@xxxxxxxxx>wrote: > Hello, > > Database : 11gR2 > > I was recently provided an access to a new database, because users are > complaining of poor perfromance. > During my monitoring of this database, and using statspack report (because > we don't have licensed diagnostics pack), I have seen both RMAN and Datapump > processes running together during peak hours. So I asked the DBA , if she's > scheduling RMAN and datapump together? > > She replied that she knows nothing about these datapump processes and that > could be RMAN who is using (“ Module: Data Pump Worker”) ! > I never read that before in the Oracle documentation! Is it correct that > RMAN utility can use Data Pump Workers??! > I know That RMAN must access to V$ and GV$ views to extract some > information useful for backup process BUT, is RMAN using Data Pump Workers > for that? > > Thank you, > > S >