quotaon, quotaoff - turn filesystem quotas on and off
SYNOPSIS
/usr/sbin/quotaon [ -vugf ] filesystem...
/usr/sbin/quotaon [ -avugf ]
/usr/sbin/quotaoff [ -vug ] [ -x state ] filesystem...
/usr/sbin/quotaoff [ -avug ]
DESCRIPTION
quotaon
quotaon announces to the system that disk quotas should be
enabled on one or more filesystems. The filesystem quota
files must be present in the root directory of the speci
fied filesystem and be named either aquota.user (for ver
sion 2 user quota), quota.user (for version 1 user quota),
aquota.group (for version 2 group quota), or quota.group
(for version 1 group quota).
XFS filesystems are a special case - XFS considers quota
information as filesystem metadata and uses journaling to
provide a higher level guarantee of consistency. There
are two components to the XFS disk quota system: account
ing and limit enforcement. Except in the case of the root
filesystem, XFS filesystems require that quota accounting
be turned on at mount time. It is possible to enable and
disable limit enforcement on any XFS filesystem after
quota accounting is already turned on. The default is to
turn on both accounting and enforcement.
The XFS quota implementation does not maintain quota
information in user-visible files, but rather stores this
information internally.
quotaoff
quotaoff announces to the system that the specified
filesystems should have any disk quotas turned off.
OPTIONS
quotaon
-a All automatically mounted (no noauto option) non-
NFS filesystems in /etc/fstab with quotas will have
their quotas turned on. This is normally used at
boot time to enable quotas.
-v Display a message for each filesystem where quotas
are turned on.
-u Manipulate user quotas. This is the default.
-g Manipulate group quotas.
-f Make quotaon behave like being called as quotaoff.
-a Force all filesystems in /etc/fstab to have their
quotas disabled.
-v Display a message for each filesystem affected.
-u Manipulate user quotas. This is the default.
-g Manipulate group quotas.
-x delete
Free up the space used to hold quota information
(maintained internally) within XFS. This option is
only applicable to XFS, and is silently ignored for
other filesystem types. It can only be used on a
filesystem with quota previously turned off.
-x enforce
Switch off limit enforcement for XFS filesystems
(perform quota accounting only). This option is
only applicable to XFS, and is silently ignored for
other filesystem types.
XFS EXAMPLES
Turning on quotas on a non-root XFS filesystem
Use mount(8) or /etc/fstab option quota to enable both
accounting and limit enforcement. quotaon utility cannot
be used for this purpose.
Turning on quotas on an XFS root filesystem
Use quotaon -v /, and reboot(8). This procedure will
enable both accounting and limit enforcement.
Turning off quota limit enforcement on any XFS filesystem
Make sure that quota accounting and enforcement are both
turned on using repquota -s. Use quotaoff -vo to disable
limit enforcement. This may be done while the filesystem
is mounted.
Turning on quota limit enforcement on any XFS filesystem
Make sure that quota accounting is turned on using
repquota -s. Use quotaon -v. This may be done while the
filesystem is mounted.
FILES
aquota.user or aquota.group
quota file at the filesystem root
(version 2 quota, non-XFS filesystems)
quota.user or quota.group
quota file at the filesystem root
(version 1 quota, non-XFS filesystems)
/etc/fstab default filesystems
quotactl(2), fstab(5), repquota(8).
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