I have a case, suggestions please. We have a database of 7tb size and LO RMAN BACKUP is very slow(takes three days to complete) when we checked with tape team and server team for the cause of slowness I was told its because cpu utilisation is 98% and it's consumed more by oracle process.
When we check using top command the oracle process shows 98% but the process does not sustain for long time, it goes off and again new process gets generated by oracle user with different pid, so it's a challenge as a Dba to investigate the issue.
how to go about fixing the issue and also does cpu utilisation high have impact on backup performance?
Any help on this will be helpful.