Sybase Control Center allows you to extend a segment on a specific device.
In the Adaptive Server monitor, select Segments.
You see the Segments table.
Select the segment to configure.
Right-click the selected row and select Extend.
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 in order to extend the segment.