1. Oracle GoldenGate Classic Documentation
  2. Performance
  3. Tuning the Performance of Oracle GoldenGate
  4. Eliminating Disk I/O Bottlenecks
  5. Improving I/O performance Within the System Configuration

Improving I/O performance Within the System Configuration

If there are I/O waits on the disk subsystems that contain the trail files, put the trails on the fastest disk controller possible.

Check the RAID configuration. Because Oracle GoldenGate writes data sequentially, RAID 0+1 (striping and mirroring) is a better choice than RAID 5, which uses checksums that slow down I/O and are not necessary for these types of files.