Is my database IO intensive, if so how to tune it up to task(apart from SQL tuning and reduce IO) ?
I have a database where a report is running slower occasionally. It selects data from set of tables and insert into another table.
When it is running slower it is mostly either dbfile sequential read/dbfile scattered read(with single block at a time,due to UNDO read of a block) .
But another day same report completes with in SLA. It could be differing Workload on database/tables involved.
What will be the list of my options here ? (Something like playing around with ITL/PCTUSED/PCTFREE)
Regards,
Rajan