Check disk usage and limits.
The quotacheck command scans a specified filesystem for disk usage and creates, checks, and repairs disk quota files. It scans partitions and generates aquota.user and aquota.group files in the root of each filesystem to set disk space limits for users and groups.
If you see the following message when running quotacheck:
quotacheck: Your kernel probably supports journaled quota but you are not using it. Consider switching to journaled quota to avoid running quotacheck after an unclean shutdown.
Consider updating your filesystem configuration to use: usrjquota=aquota.user,grpjquota=aquota.group,jqfmt=vfsv1, then remount the filesystem: mount -vo remount /mount/point. (Caution: If issues arise during this step, do not reboot; revert the configuration instead.)
quotacheck(options)(parameters)
-a: Scan all partitions in /etc/fstab that have quota enabled;
-c: Perform a new scan and create new quota files;
-d: Display detailed execution process for troubleshooting;
-g: Calculate the number of directories and files for each group;
-R: Exclude the root partition from scanning;
-u: Calculate the number of directories and files for each user;
-v: Display the execution process.
Filesystem: Specifies the filesystem to be scanned.
Scan all partitions in /etc/mtab that support quotas:
[root@linux ~]# quotacheck -avug
quotacheck: Scanning /dev/hdb1 [/disk2] done
quotacheck: Checked 3 directories and 4 files
Force scan of a mounted filesystem:
[root@linux ~]# quotacheck -avug -m
Scan a specific filesystem:
[root@linux ~]# quotacheck -cvug /disk2