*BASH User Commands Ubuntu 10.04.4 LTS Server coreutils
GNU/Linux
QUOTAON(8)                                                          QUOTAON(8)



NAME
       quotaon, quotaoff - turn filesystem quotas on and off

SYNOPSIS
       /usr/sbin/quotaon [ -vugfp ] [ -F format-name ] filesystem...
       /usr/sbin/quotaon [ -avugfp ] [ -F format-name ]

       /usr/sbin/quotaoff [ -vugp ] [ -x state ] filesystem...
       /usr/sbin/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 guar-
       antee 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 account-
       ing 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  (version  1
              quota), vfsv0 (version 2 quota), 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, --print-state
              Instead of turning quotas on just print  state  of  quotas  (ie.
              whether. quota is on or off)

       -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 dis-
              abled.

       -v, --verbose
              Display a message for each filesystem affected.

       -u, --user
              Manipulate user quotas. This is the default.

       -g, --group
              Manipulate group 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 on/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.

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 util-
       ity 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 root-
       flags 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

SEE ALSO
       quotactl(2), fstab(5), quota_nld(8), repquota(8), warnquota(8)



4th Berkeley Distribution                                           QUOTAON(8)