quotacheck man page on FreeBSD

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QUOTACHECK(8)		  BSD System Manager's Manual		 QUOTACHECK(8)

NAME
     quotacheck — file system quota consistency checker

SYNOPSIS
     quotacheck [-guv] [-l maxrun] -a
     quotacheck [-guv] filesystem ...

DESCRIPTION
     The quotacheck utility examines each file system, builds a table of cur‐
     rent disk usage, and compares this table against that recorded in the
     disk quota file for the file system.  If any inconsistencies are
     detected, both the quota file and the current system copy of the incor‐
     rect quotas are updated (the latter only occurs if an active file system
     is checked).  By default both user and group quotas are checked.

     The following options are available:

     -a	     If supplied in place of any file system names, quotacheck will
	     check all the file systems indicated in /etc/fstab to be read-
	     write with disk quotas.  By default only the types of quotas
	     listed in /etc/fstab are checked.

     -g	     Only group quotas listed in /etc/fstab are to be checked.

     -l maxrun
	     Specifies the maximum number of concurrent file systems to check
	     in parallel.  If this option is omitted, or if maxrun is zero,
	     parallel passes are run as per fsck(8).  This option is depre‐
	     cated and parallel passes are always run as per

     -u	     Only user quotas listed in /etc/fstab are to be checked.

     -v	     Report discrepancies between the calculated and recorded disk
	     quotas and other additional diagnostic messages.

     Specifying both -g and -u is equivalent to the default.  Parallel passes
     are run on the file systems required, using the pass numbers in
     /etc/fstab in an identical fashion to fsck(8).

     Normally, quotacheck operates silently.

     The quotacheck utility expects each file system to be checked to have a
     quota files named quota.user and quota.group which are located at the
     root of the associated file system.  These defaults may be overridden in
     /etc/fstab.  If a file is not present, quotacheck will create it.	These
     files should be edited with the edquota(8) utility.

     The quotacheck utility is normally run at boot time from the /etc/rc
     file.  The rc startup procedure is controlled by the /etc/rc.conf vari‐
     able check_quotas.	 Note that to enable this functionality in /etc/rc you
     also need to enable startup quota procedures with the variable
     enable_quotas in /etc/rc.conf.  The kernel must also be built with
     options QUOTA.

     The quotacheck utility accesses the raw device in calculating the actual
     disk usage for each user.	Thus, the file systems checked should be qui‐
     escent while quotacheck is running.

FILES
     quota.user	  at the file system root with user quotas
     quota.group  at the file system root with group quotas
     /etc/fstab	  default file systems

SEE ALSO
     quota(1), quotactl(2), fstab(5), rc.conf(5), edquota(8), fsck(8),
     quotaon(8), repquota(8)

HISTORY
     The quotacheck utility appeared in 4.2BSD.

BUGS
     The quota system will ignore UIDs or GIDs that would be negative when
     evaluated as a signed value.  Typically those types of ids can appear in
     the file system from NFS mounts or archive files from other operating
     systems.  Extremely large UIDs or GIDs will cause quotacheck to run for
     an unreasonable amount of time and also produce extremely large quota
     data files.

BSD			       January 25, 2007				   BSD
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