Disk quota installation Introduction 11.. TTaasskkss The _q_u_o_t_a_c_h_e_c_k utility will walk all directories of a file system and compute the amount of disk space and the number of files/directories for every users and every groups. The result is stored in the files quota.user and quota.group. Those files are located in the root of each file system. This command obviously take a while to execute. Once executed the files quota.user and quota.group will be maintain in real time by the kernel. 22.. uusseerr aanndd ggrroouupp qquuoottaa aarree iinnddeeppeennddeenntt ccoonncceepptt It is possible to install disk quota only for users and not for groups or the reverse. If this is what you did, then only quota.user or quota.group will be produced.