You can use multiple disks for dbspaces, logical logs,
temporary tables, and sort files.
Using multiple disks for a dbspace
Using multiple disks for a dbspace helps to distribute
I/O across dbspaces that contain several small tables.
Using multiple disks for logical logs
You can distribute logical logs in different dbspaces on
multiple disks in round-robin fashion to improve logical backup performance.
This scheme allows the database server to back up logs on one disk,
while performing logging operations on the other disks.
Spreading temporary tables and sort files across multiple disks
You can spread the I/O associated with temporary tables
and sort files across multiple disks, after defining dbspaces for
temporary tables and sort files. This can improve performance for
applications that require a large amount of temporary space for temporary
tables or large sort operations.