A page is the physical unit of disk storage that the database server uses to read from and write to HCL® OneDB® databases.

The following figure illustrates the concept of a page, represented by a darkened sector of a disk platter.
Figure 1: A page on disk

This figure shows a disk with one small darkened sector.

On most UNIX™ platforms, the page size is 2 KB. On Windows™, the page size is 4 KB. Because your hardware determines the size of your page, you cannot alter this value.

A chunk contains a certain number of pages, as the following figure illustrates. A page is always entirely contained within a chunk; that is, a page cannot cross chunk boundaries.
Figure 2: A chunk, logically separated into a series of pages

The paragraph that precedes this figure describes the content of the figure.

For information about how the database server structures data within a page, see the chapter on disk structures and storage in the HCL OneDB Administrator's Reference