If you want all the space in a single mount point you need to create a single logical volume of that size.
An alternative might be to make submounts and putting your directory structure such that everything is mounted separately.
e.g. first mount point is /database next is /database/mount1, next is /database/mount2, next is /database/mount3 etc... Or alternatively first is /database next is /database/mount1 next is /database/mount1/mount2 next is /database/mount1/mount2/mount3 etc...
Of course the order of the mounts in /etc/fstab is important if you do that. /database must appear before all the others. In the alternative above /database/mount1 must appear before /database/mount1/mount2 etc...
Of course mount1, mount2 etc... are just examples - you can name them bob, fred, joe etc... or anything you want.
Last edited by MensaWater; 09-23-2010 at 11:55 AM.