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31 .\" @(#)quotacheck.8 8.1 (Berkeley) 6/5/93
39 .Nd file system quota consistency checker
51 utility examines each file system,
52 builds a table of current disk usage,
53 and compares this table against that recorded
54 in the disk quota file for the file system.
55 If any inconsistencies are detected, both the
56 quota file and the current system copy of the
57 incorrect quotas are updated (the latter only
58 occurs if an active file system is checked).
59 By default both user and group quotas are checked.
61 The following options are available:
62 .Bl -tag -width indent
64 If supplied in place of any file system names,
66 will check all the file systems indicated in
68 to be read-write with disk quotas.
69 By default only the types of quotas listed in
73 Only group quotas listed in
77 Specifies the maximum number of concurrent file systems
79 If this option is omitted, or if
81 is zero, parallel passes are run as per
84 Only user quotas listed in
88 Report discrepancies between the
89 calculated and recorded disk quotas and other additional diagnostic messages.
96 is equivalent to the default.
97 Parallel passes are run on the file systems required,
98 using the pass numbers in
100 in an identical fashion to
109 utility expects each file system to be checked to have a
114 which are located at the root of the associated file system.
115 These defaults may be overridden in
117 If a file is not present,
120 These files should be edited with the
126 utility is normally run at boot time from the
129 The rc startup procedure is controlled by the
133 Note that to enable this functionality in
135 you also need to enable startup quota procedures
140 The kernel must also be built with
141 .Cd "options QUOTA" .
145 utility accesses the raw device in calculating the actual
146 disk usage for each user.
147 Thus, the file systems
148 checked should be quiescent while
152 .Bl -tag -width quota.group -compact
154 at the file system root with user quotas
156 at the file system root with group quotas
175 The quota system will ignore UIDs or GIDs that would be negative
176 when evaluated as a signed value.
177 Typically those types of ids can appear in the file system from NFS
178 mounts or archive files from other operating systems.
179 Extremely large UIDs or GIDs will cause
181 to run for an unreasonable amount of time and also produce extremely
182 large quota data files.