Man

Command Section
QUOTA.USER(5)             FreeBSD File Formats Manual            QUOTA.USER(5)

NAME
     quota.user, quota.group - per file system quota database

DESCRIPTION
     Each file system with active quotas should contain a quota.user and
     quota.group file in the file system root.  These files are created by
     quotacheck(8), and should be edited with edquota(8).  It is possible to
     specify a different location and file name with the ``userquota'' and
     ``groupquota'' options in the fstab(5) file.

     The data files contain the following information:

              Current block usage
              Current number of files
              Soft block limit
              Soft file limit
              Hard block limit
              Hard file limit
              Block grace time remaining if over the soft limit
              File grace time remaining if over the soft limit

     See edquota(8) for an explanation on the various limits and grace
     periods.

     During normal quota operations the quotactl(2) interface is used to query
     or set quota information and the kernel will maintain the data files as
     needed.  If quotas are disabled on a file system, but marked as having
     quotas enabled in fstab(5), then the quota data files will be used
     directly.

     The data files are stored as an array of ``struct dqblk'' structures, as
     defined in <ufs/ufs/quota.h>, and indexed by UID or GID.  The data files
     will be written as a sparse file if possible.  Data is only maintained
     for ids that have either non-zero usage or non-zero quota limits.  If an
     attempt is made to access data for an id that would exist past the end of
     the current data file, a quota structure with all values set to zero will
     be created, and the data file extended as needed.  The quotacheck(8)
     utility will truncate the data files to the minimum size needed to store
     the highest id with either non-zero file usage or non-zero quota limits.

     The data record for id 0 has special meaning.  If the ``dqb_btime'' or
     ``dbq_itime'' fields are non-zero, they are used to indicate the grace
     period on that file system for users who have exceeded their soft limit.
     These times can be set by edquota(8) with the -t flag.  If no explicit
     grace period has been set with edquota(8), then the default value of 7
     days will be used.  The default values are defined by MAX_DQ_TIME and
     MAX_IQ_TIME in <ufs/ufs/quota.h>.

SEE ALSO
     quota(1), quotactl(2), fstab(5), edquota(8), quotacheck(8), quotaoff(8),
     quotaon(8), repquota(8)

FreeBSD 11.1-RELEASE-p4        October 30, 2007        FreeBSD 11.1-RELEASE-p4
Command Section