Increase partition size Centos and Fedora
Use df -h to list the partitions
#sudo df -h
Use lvresize to extend the partition
#sudo lvresize --size +25G /dev/whatever
Unmount the filesystem to reduce risk of a corrupt filesystem in case of a crash durning the optionation.
#sudo umount /dev/whatever
Use resize2fs to extend the ext3 or ext4 filesystem
#sudo resize2fs /dev/whatever