when du -cshm . is run from home directory of user, the below is the output. [user@host ~]$ du -cshm . 2859    . 2859    totaland when quota -s command is run, below is the output.[user@host ~]$ quota -sDisk quotas for user user (uid 1234):  Filesystem  blocks   quota   limit   grace   files   quota   limit   gracexxx.xxx.xxx.xxx:/home1/users             15505M  16602M  17579M           26714       0       0   There is a huge difference from 2.8GB to 15-16GB(du to quota), can anyone please suggest how to resolve this.(I have check empty folder, deleted trash but still quota show 15gb) 
du -shm . and quota -s information are not matching for particular user?
quota