NAME

quotaon - 開啟關(guān)閉文件系統(tǒng)配額  

總覽 (SYNOPSIS)

quotaon [ -e | d ] [ -vug ] filesystem...
quotaon [ -e | d ] [ -avug ]

quotaoff [ -e | d ] [ -vug ] filesystem...
quotaoff [ -e | d ] [ -avug ]  

描述 (DESCRIPTION)

quotaon 通知系統(tǒng)在一個或者幾個文件系統(tǒng)上使用磁盤配額。 quotaoff 通知系統(tǒng)取消某一個特定的文件系統(tǒng)的所有磁盤配額。 被指定的文件系統(tǒng)必須已經(jīng)裝載。 quotaon 要求在指定的文件系統(tǒng)的根目錄下有相應(yīng)的配額文件， 用戶配額文件是 aquota.user， 組配額文件是 aquota.group。 這些文件可以是用 convertquota(8) 命令轉(zhuǎn)換舊的配額文件而來， 也可以是用 quotacheck(8) 命令創(chuàng)建的一個全新的文件。 默認是用戶和組配額都被允許。  

選項 (OPTIONS)

-e

開啟指定文件系統(tǒng)配額。 當(dāng)程序名是 quotaon 時， 此選項是默認的。

-d

關(guān)閉指定文件系統(tǒng)配額。 當(dāng)程序名是 quotaoff 時， 此選項是默認的。

-a

當(dāng)用在任何文件系統(tǒng)名稱的地方時， quotaon/quotaoff 將允許/禁止所有在 /etc/mtab 中指定的文件系統(tǒng)為有磁盤配額的讀-寫。 這個選項一般被用在系統(tǒng)啟動時開啟配額。

-v

為每個開啟或關(guān)閉配額的文件系統(tǒng)顯示一條消息。

-u

處理用戶配額。 這是默認選項。

-g

處理組配額。

文件 (FILES)

aquota.user

文件系統(tǒng)根目錄下的用戶配額文件

aquota.group

文件系統(tǒng)根目錄下的組配額文件

/etc/mtab

已裝載的文件系統(tǒng)表

參見 (SEE ALSO)

quota(1), quotactl(2), fstab(5), convertquota(8), quotacheck(8), setquota(8), edquota(8), repquota(8)   

#p#

NAME

quotaon, quotaoff - turn filesystem quotas on and off  

SYNOPSIS

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

/sbin/quotaoff [ -vugp ] [ -x state ] filesystem...
/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 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

-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.

-p

Instead of turning quotas on just print state of quotas (ie. whether. quota is on or off)

-f

Make quotaon behave like being called as quotaoff.

quotaoff

-F 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

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.

-p

Instead of turning quotas off just print state of quotas (ie. whether. quota is on or off)

-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.

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 -s. Then, use quotaoff -vo 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. 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), repquota(8).