Storage Foundation lets you reconfigure the layout of a volume without taking it offline with the Dynamic Relayout feature.

You can make the following dynamic volume layout changes:

This feature is implemented through the Add Mirror window. That window has a section called "Choose the layout."

The basic concept is that you select the features you want the volume layout to be changed to, and the program creates a mirror or plex of the original volume with the desired attributes of the new layout. If you no longer have a need for the original volume, you remove it with the Remove Mirror command.

Thus, the conversion or relayout is a two-step process. First, you select the desired attributes and create the mirror through the Add Mirror command. Second, you remove the original plex through the Remove Mirror command.