Use disk striping, random and sequential file disk access to balance
Input/Output (I/O).
Raw Devices
On UNIX-like operating systems, you can create a database or dbspace on a raw device or a file system file.
Disk Striping
Striping data across multiple disks is an essential technique for good performance.
Internal Striping
Disk striping takes advantage of multiple disk spindles and provides the speed of parallel disk writes.
Random and Sequential File Access
Performance related to randomly accessed files can be improved by increasing the number of disk drives devoted to those files, and therefore, the number of operations per second performed against those files.