I created a ubuntu server vm with 64GB provisioned storage. I remember that I specified 30GB to be used for the vm. When I do df -h, I get

Filesystem            Size  Used Avail Use% Mounted on
/dev/mapper/analysis--db-root<br/>
                       28G   25G  904M  97% /
udev                  2.0G  4.0K  2.0G   1% /dev
tmpfs                 793M  228K  793M   1% /run
none                  5.0M     0  5.0M   0% /run/lock
none                  2.0G     0  2.0G   0% /run/shm
/dev/sda1             228M   45M  171M  21% /boot

The disk is almost full, how can I use my other 30GB from the provisioned storage?