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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
83 This option is deprecated and parallel passes are always run
87 Only user quotas listed in
91 Report discrepancies between the
92 calculated and recorded disk quotas and other additional diagnostic messages.
99 is equivalent to the default.
100 Parallel passes are run on the file systems required,
101 using the pass numbers in
103 in an identical fashion to
112 utility expects each file system to be checked to have a
117 which are located at the root of the associated file system.
118 These defaults may be overridden in
120 If a file is not present,
123 These files should be edited with the
129 utility is normally run at boot time from the
132 The rc startup procedure is controlled by the
136 Note that to enable this functionality in
138 you also need to enable startup quota procedures
143 The kernel must also be built with
144 .Cd "options QUOTA" .
148 utility accesses the raw device in calculating the actual
149 disk usage for each user.
150 Thus, the file systems
151 checked should be quiescent while
155 .Bl -tag -width quota.group -compact
157 at the file system root with user quotas
159 at the file system root with group quotas
178 The quota system will ignore UIDs or GIDs that would be negative
179 when evaluated as a signed value.
180 Typically those types of ids can appear in the file system from NFS
181 mounts or archive files from other operating systems.
182 Extremely large UIDs or GIDs will cause
184 to run for an unreasonable amount of time and also produce extremely
185 large quota data files.