Reporting On Disk Quotas; Keeping Quotas Accurate - Red Hat ENTERPRISE LINUX 4 System Administration Manual

If neither the -u or -g options are specified, only the user quotas are disabled. If only -g is specified,
only group quotas are disabled.
To enable quotas again, use the quotaon command with the same options.
For example, to enable user and group quotas for all file systems, use the following command:
quotaon -vaug
To enable quotas for a specific file system, such as /home, use the following command:
quotaon -vug /home
If neither the -u or -g options are specified, only the user quotas are enabled. If only -g is specified,
only group quotas are enabled.

13.2.2. Reporting on Disk Quotas

Creating a disk usage report entails running the repquota utility. For example, the command
repquota /home produces this output:
*** Report for user quotas on device /dev/mapper/VolGroup00-LogVol02
Block grace time: 7days; Inode grace time: 7days
User used
----------------------------------------------------------------------
root -- 36
kristin -- 540
testuser -- 440400
To view the disk usage report for all (option -a) quota-enabled file systems, use the command:
repquota -a
While the report is easy to read, a few points should be explained. The -- displayed after each user
is a quick way to determine whether the block or inode limits have been exceeded. If either soft limit is
exceeded, a + appears in place of the corresponding -; the first - represents the block limit, and the
second represents the inode limit.
The grace columns are normally blank. If a soft limit has been exceeded, the column contains a
time specification equal to the amount of time remaining on the grace period. If the grace period has
expired, none appears in its place.

13.2.3. Keeping Quotas Accurate

Whenever a file system is not unmounted cleanly (due to a system crash, for example), it is necessary
to run quotacheck. However, quotacheck can be run on a regular basis, even if the system has not
crashed. Running the following command periodically keeps the quotas more accurate (the options
used have been described in
quotacheck -avug
Block limits
soft hard grace
0 0
0 0
500000 550000
Section 13.1.1, "Enabling
File limits
used soft hard grace
4 0 0
125 0 0
37418 0 0
Quotas"):
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