186 lines
5.0 KiB
Groff
186 lines
5.0 KiB
Groff
.\" Copyright (c) 1983, 1990, 1991, 1993
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.\" The Regents of the University of California. All rights reserved.
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.\"
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.\" This code is derived from software contributed to Berkeley by
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.\" Robert Elz at The University of Melbourne.
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.\"
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.\" Redistribution and use in source and binary forms, with or without
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.\" modification, are permitted provided that the following conditions
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.\" are met:
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.\" 1. Redistributions of source code must retain the above copyright
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.\" notice, this list of conditions and the following disclaimer.
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.\" 2. Redistributions in binary form must reproduce the above copyright
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.\" notice, this list of conditions and the following disclaimer in the
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.\" documentation and/or other materials provided with the distribution.
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.\" 4. Neither the name of the University nor the names of its contributors
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.\" may be used to endorse or promote products derived from this software
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.\" without specific prior written permission.
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.\"
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.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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.\" SUCH DAMAGE.
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.\"
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.\" @(#)quotacheck.8 8.1 (Berkeley) 6/5/93
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.\" $FreeBSD$
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.\"
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.Dd January 25, 2007
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.Dt QUOTACHECK 8
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.Os
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.Sh NAME
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.Nm quotacheck
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.Nd file system quota consistency checker
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.Sh SYNOPSIS
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.Nm
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.Op Fl guv
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.Op Fl l Ar maxrun
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.Fl a
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.Nm
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.Op Fl guv
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.Ar filesystem ...
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.Sh DESCRIPTION
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The
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.Nm
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utility examines each file system,
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builds a table of current disk usage,
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and compares this table against that recorded
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in the disk quota file for the file system.
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If any inconsistencies are detected, both the
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quota file and the current system copy of the
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incorrect quotas are updated (the latter only
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occurs if an active file system is checked).
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By default both user and group quotas are checked.
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.Pp
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The following options are available:
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.Bl -tag -width indent
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.It Fl a
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If supplied in place of any file system names,
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.Nm
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will check all the file systems indicated in
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.Pa /etc/fstab
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to be read-write with disk quotas.
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By default only the types of quotas listed in
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.Pa /etc/fstab
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are checked.
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.It Fl g
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Only group quotas listed in
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.Pa /etc/fstab
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are to be checked.
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.It Fl l Ar maxrun
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Specifies the maximum number of concurrent file systems
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to check in parallel.
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If this option is omitted, or if
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.Ar maxrun
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is zero, parallel passes are run as per
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.Xr fsck 8 .
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This option is deprecated and parallel passes are always run
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as per
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.Xr fsck 8 .
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.It Fl u
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Only user quotas listed in
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.Pa /etc/fstab
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are to be checked.
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.It Fl v
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Report discrepancies between the
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calculated and recorded disk quotas and other additional diagnostic messages.
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.El
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.Pp
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Specifying both
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.Fl g
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and
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.Fl u
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is equivalent to the default.
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Parallel passes are run on the file systems required,
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using the pass numbers in
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.Pa /etc/fstab
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in an identical fashion to
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.Xr fsck 8 .
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.Pp
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Normally,
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.Nm
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operates silently.
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.Pp
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The
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.Nm
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utility expects each file system to be checked to have a
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quota files named
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.Pa quota.user
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and
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.Pa quota.group
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which are located at the root of the associated file system.
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These defaults may be overridden in
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.Pa /etc/fstab .
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If a file is not present,
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.Nm
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will create it.
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These files should be edited with the
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.Xr edquota 8
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utility.
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.Pp
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The
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.Nm
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utility is normally run at boot time from the
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.Pa /etc/rc
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file.
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The rc startup procedure is controlled by the
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.Pa /etc/rc.conf
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variable
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.Ar check_quotas .
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Note that to enable this functionality in
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.Pa /etc/rc
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you also need to enable startup quota procedures
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with the variable
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.Ar enable_quotas
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in
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.Pa /etc/rc.conf .
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The kernel must also be built with
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.Cd "options QUOTA" .
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.Pp
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The
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.Nm
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utility accesses the raw device in calculating the actual
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disk usage for each user.
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Thus, the file systems
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checked should be quiescent while
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.Nm
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is running.
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.Sh FILES
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.Bl -tag -width quota.group -compact
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.It Pa quota.user
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at the file system root with user quotas
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.It Pa quota.group
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at the file system root with group quotas
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.It Pa /etc/fstab
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default file systems
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.El
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.Sh SEE ALSO
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.Xr quota 1 ,
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.Xr quotactl 2 ,
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.Xr fstab 5 ,
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.Xr rc.conf 5 ,
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.Xr edquota 8 ,
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.Xr fsck 8 ,
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.Xr quotaon 8 ,
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.Xr repquota 8
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.Sh HISTORY
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The
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.Nm
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utility appeared in
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.Bx 4.2 .
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.Sh BUGS
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The quota system will ignore UIDs or GIDs that would be negative
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when evaluated as a signed value.
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Typically those types of ids can appear in the file system from NFS
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mounts or archive files from other operating systems.
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Extremely large UIDs or GIDs will cause
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.Nm
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to run for an unreasonable amount of time and also produce extremely
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large quota data files.
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