# quotaon

## NAME



           quotaon, quotaoff - turn filesystem quotas on and off
    


## SYNOPSIS



           **quotaon**[ **-vugfp**] [ **-F** _format-name_ ] _filesystem_...
           **quotaon**[ **-avugPfp**] [ **-F** _format-name_ ]
    
           **quotaoff**[ **-vugPp**] [ **-x** _state_ ] _filesystem_...
           **quotaoff**[ **-avugp**]
    


## 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 specified filesystem and be
           named either _aquota.user_ (for version 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: accounting and limit enforcement.
           XFS filesystems require that quota accounting be turned on at
           mount time.  It is possible to enable and disable limit
           enforcement on an 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**
           **-F, --format=**_format-name_
                  Report quota for specified format (ie. don't perform format
                  autodetection).  Possible format names are: **vfsold** Original
                  quota format with 16-bit UIDs / GIDs, **vfsv0** Quota format
                  with 32-bit UIDs / GIDs, 64-bit space usage, 32-bit inode
                  usage and limits, **vfsv1** Quota format with 64-bit quota
                  limits and usage, **xfs**(quota on XFS filesystem)
    
           **-a, --all**
                  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, --verbose**
                  Display a message for each filesystem where quotas are
                  turned on.
    
           **-u, --user**
                  Manipulate user quotas. This is the default.
    
           **-g, --group**
                  Manipulate group quotas.
    
           **-P, --project**
                  Manipulate project quotas.
    
           **-p, --print-state**
                  Instead of turning quotas on just print state of quotas
                  (ie. whether. quota is on or off)
    
           **-x, --xfs-command enforce**
                  Switch on limit enforcement for XFS filesystems. This is
                  the default action for any XFS filesystem. This option is
                  only applicable to XFS, and is silently ignored for other
                  filesystem types.
    
           **-f, --off**
                  Make **quotaon** behave like being called as **quotaoff**.
    
       **quotaoff**
           **-F, --format=**_format-name_
                  Report quota for specified format (ie. don't perform format
                  autodetection).  Possible format names are: **vfsold**(version
                  1 quota), **vfsv0**(version 2 quota), **xfs**(quota on XFS
                  filesystem)
    
           **-a, --all**
                  Force all filesystems in **/etc/fstab** to have their quotas
                  disabled.
    
           **-v, --verbose**
                  Display a message for each filesystem affected.
    
           **-u, --user**
                  Manipulate user quotas. This is the default.
    
           **-g, --group**
                  Manipulate group quotas.
    
           **-P, --project**
                  Manipulate project quotas.
    
           **-p, --print-state**
                  Instead of turning quotas off just print state of quotas
                  (ie. whether. quota is on or off)
    
           **-x, --xfs-command 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, --xfs-command enforce**
                  Switch off limit enforcement for XFS filesystems (perform
                  quota accounting only). This is the default action for any
                  XFS filesystem.  This option is only applicable to XFS, and
                  is silently ignored for other filesystem types.
    
           **-x, --xfs-command account**
                  This option can be used to disable quota accounting. It is
                  not possible to enable quota accounting by quota tools. Use
                  mount(8) for that. This option is only applicable to XFS
                  filesystems, and is silently ignored for other filesystem
                  types.
    


## NOTES ON XFS FILESYSTEMS



           To enable quotas on an XFS filesystem, use mount(8) or **/etc/fstab**
           quota option to enable both accounting and limit enforcement.
           **quotaon** utility cannot be used for this purpose.
    
           Turning on quotas on an XFS root filesystem requires the quota
           mount options be passed into the kernel at boot time through the
           Linux **rootflags** boot option.
    
           To turn off quota limit enforcement on any XFS filesystem, first
           make sure that quota accounting and enforcement are both turned on
           using **repquota -v** _filesystem_.  Then, use **quotaoff -v** _filesystem_ to
           disable limit enforcement.  This may be done while the filesystem
           is mounted.
    
           Turning on quota limit enforcement on an XFS filesystem is
           achieved using **quotaon -v** _filesystem_.  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
    


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