Spotlight on Oracle - Improving Database I/O (SOO4)

A number of performance indicators can suggest a need to improve Oracle disk I/O.

A major aim of configuring an Oracle server is to ensure that disk I/O does not become a bottleneck. While there may be some differences in the performance of disk devices from various vendors (especially if the devices are in some sort of RAID configuration), the major restraint on disk I/O is the number of disks acquired and the spread of I/O between these devices.

This is a companion discussion topic for the original entry at