In the Perspective Resources view, select the server to monitor, click the
drop-down arrow, and select Monitor.
Select Segments.
You see the Segments table.
Select the segment to configure.
Select the Extend menu item from the context menu.
You see the Extend dialog, which includes the name, size, and unused size of the device.
Click the device name onto which to extend the segment.
Note: The device list is empty if the selected segment is using
all the devices configured on the server. In this case, add a new device to
the server to extend the segment.