quotacheck
—
file system quota consistency checker
quotacheck |
[-guv ] [-c
32 | 64]
[-l maxrun]
-a |
quotacheck |
[-guv ] [-c
32 | 64]
filesystem ... |
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.
-c
32 | 64
- Before performing its checks,
quotacheck
will
convert the quota file to the specified word size. A conversion size of 64
is given to request conversion to the new 64-bit quota file format. A
conversion size of 32 is given to request conversion back to the old
32-bit quota file format. The original quota file is left unchanged and
moved aside with an underscore and its format size plus a
.orig extension added to its name. Thus, the
original 32-bit quota.user quota file converted to
the 64-bit format quota file will be renamed to
quota.user_32.orig.
-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.
- 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
The quotacheck
utility appeared in
4.2BSD.
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.