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 current 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 incorrect 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 deprecated and parallel passes
are always run as per fsck(8).
- -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 variable
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
quiescent 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.