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== NAME ==

vzquota -
manipulate containers disk quotas

== SYNOPSIS ==

vzquota
[quota_options] command quota_id
[command_options]

== DESCRIPTION ==

vzquota
controls disk quotas for Virtuozzo/OpenVZ container. These
are per-container disk quotas set from Virtuozzo/OpenVZ host
system.

The
quota_id must be numeric-only identifier. Note, that
quota ID is not the same as container ID (CTID). One
container can mount several filesystems and each of them can
have its own quotas.

== OPTIONS ==

Argument
command can be one of the following: init,
drop, on, off, setlimit,
setlimit2, stat, show.

=== General ===

<table width="100%" border="0" rules="none" frame="void"
cellspacing="0" cellpadding="0">
<tr valign="top" align="left">
<td width="11%"></td>
<td width="3%">

-h</td>
<td width="8%"></td>
<td width="78%">

Print usage information.</td></tr>
<tr valign="top" align="left">
<td width="11%"></td>
<td width="3%">

-V</td>
<td width="8%"></td>
<td width="78%">

Print utility version.</td></tr>
<tr valign="top" align="left">
<td width="11%"></td>
<td width="3%">

-q</td>
<td width="8%"></td>
<td width="78%">

Quiet mode. Causes all warning and diagnostic messages
to be suppressed. Only fatal errors are displayed.</td></tr>
<tr valign="top" align="left">
<td width="11%"></td>
<td width="3%">

-v</td>
<td width="8%"></td>
<td width="78%">

Verbose mode. Causes vzquota to print debugging
messages about its progress. Multiple -v options
increase verbosity. Maximum is 2.</td></tr>
<tr valign="top" align="left">
<td width="11%"></td>
<td width="3%">

-b</td>
<td width="8%"></td>
<td width="78%">

Batch mode. in this mode outputs (usually on stat
and show commands) will be in format better suitable
for parsing by a script.</td></tr>
</table>

=== Quota Commands ===
available:

<table width="100%" border="0" rules="none" frame="void"
cellspacing="0" cellpadding="0">
<tr valign="top" align="left">
<td width="11%"></td>
<td width="6%">

init</td>
<td width="5%"></td>
<td width="78%">

A necessary preliminary for any
other quota command work: create a new quota file,
calculating current disk usage from given path. This command
requires full set of quota soft- and hardlimits given as
command-line options. Limits are also stored in quota file,
so subsequent vzquota on doesn’t requires any
quota limit as command-line parameter, although accepts them
as well. New specified limits and flags will also be stored
in the quota file.</td></tr>
</table>

You can also
create your own quota files for arbitrary quota accounting
points. Quota file location and path to quota accounting
point can be specified via -c and -p options
(see below). You can use also -R option instead of
-c option, to set relative quota file location. In
this case quota file resides one dirrectory upper than quota
accounting point and has special name (see below).

<table width="100%" border="0" rules="none" frame="void"
cellspacing="0" cellpadding="0">
<tr valign="top" align="left">
<td width="11%"></td>
<td width="6%">

drop</td>
<td width="5%"></td>
<td width="78%">

Remove quota file. Command
checks if quota is running and refuses to remove file in
this case, option -f allows to override that
rule. </td></tr>
<tr valign="top" align="left">
<td width="11%"></td>
<td width="6%">

on</td>
<td width="5%"></td>
<td width="78%">

Turn quota on. If previous quota session wasn’t
switched off properly (quota is not running, but quota file
indicates it is), initialization procedure will be
performed. -f option allow to force initialization
procedure regardless of the shutdown status. Command
on doesn’t work in case specified quota id is
running. </td></tr>
<tr valign="top" align="left">
<td width="11%"></td>
<td width="6%">

off</td>
<td width="5%"></td>
<td width="78%">

Turn quota off, write usage statistic back to the quota
file. Doesn’t work if quota file cannot be accessed,
also accepts -f option (force switching off, even if
usage statistic will be lost). This is possible that quota
will still be in a stopped state, even if -f flag is
used. </td></tr>
</table>

setlimit

Set new quota parameters.
Requires at least one quota parameter or flag specified.
Applies new parameters immediately if quota with given
quota_id is running. Stores new limits and flags in the
quota file. Option -f specifies to mark quota as
dirty, so at the next quota start, disk will be rescanned
and usage updated.

setlimit2

Set second-level quota
parameters. Applies new parameters immediately if quota with
given quota_id is running and second-level quota is on.
Stores new limits in the quota file.

<table width="100%" border="0" rules="none" frame="void"
cellspacing="0" cellpadding="0">
<tr valign="top" align="left">
<td width="11%"></td>
<td width="6%">

stat</td>
<td width="5%"></td>
<td width="78%">

Show usage statistics and update it in quota file.
Option -f causes to do not read and update quota
file, just print statistics from kernel. Option -t
specifies to show and update user/group based quota
statistics for a container. Works on running containers
only. The command with -t option flushes all quota
statistics from kernel to file and thus may be used for
backup purposes.</td></tr>
<tr valign="top" align="left">
<td width="11%"></td>
<td width="6%">

show</td>
<td width="5%"></td>
<td width="78%">

Show usage and limits info from quota file. Option
-t specifies to show user/group quota information as
well. </td></tr>
</table>

=== Quota Command Options ===
flags. 
All these options are required in init command, and
optionally accepted in on and setlimit
commands.

−s,
--sub−quotas 1|0

Enables or disables user/group
based quota inside the container. Here 1 means to
enable, and 0 - to disable. By default user/group
quota is disabled. This option is accepted by init
and on commands.

−u
user_id

For setlimit2 command
only. Limits will be applied to the specified
user_id.

−g
group_id

For setlimit2 command
only. Limits will be applied to the specified
group_id.

−u,
--ugid−limit limit

For on and
setlimit commands only. Specifies maximum number of
user and group IDs allowed in the container. If the value is
0, user/group quota will not be accounted. Default
value is 0. There is one note concerning
setlimit command. If first-level quota is running,
second-level quota is active and not all ugid objects were
loaded into kernel by on command due to insufficient
ugid_limit value (this can be checked by issuing
stat -t command and observing whether ugid limit was
exceeded), then setlimit with new limit value
updates it in kernel and file but this change does not take
immediate effect. Modification will be applied after quota
restart.

−b,
--block−softlimit bsl

Disk quota block soft limit.
Soft limit is amount of blocks which excess is allowed in
time equal exptime. On the expiration of this time
soft limit becomes hard limit. Block limits are set in 1k
sized blocks.

−B,
--block−hardlimit bhl

Disk quota block hard limit.
Hard limit is amount of blocks which excess is not
allowed.

−e,
--block−exptime bet

Disk quota expiration time for
excess of a block soft limit. Time can be given in two
different formats: 
1. dd:hh:mm:ss 
For instance: 30 - 30 seconds; 12:00 - 12
minutes; 20:15:11:00 - 20 days, 15 hours, 11 minutes
 
2. xxA, where A - h/H(hour); d/D(day);
w/W(week); m/M(month); y/Y(year). 
For instance: 7D - 7 days; 01w - 1 week;
3m - 3 months

−i,
--inode−softlimit isl

Disk quota inode soft limit.
Similarly to block soft limit.

−I,
--inode−hardlimit ihl

Disk quota inode hard
limit.

−n,
--inode−exptime iet

Disk quota expiration time for
excess of a inode soft limit.

Quota options. 
−p path

Point of quota accounting for
given quota_id. This option required for init
command and can be used also with any another command to
override quota path obtained from quota file. For on
and setlimit commands, this option can be used to set
and save new quota accounting path for given
quota_id

<table width="100%" border="0" rules="none" frame="void"
cellspacing="0" cellpadding="0">
<tr valign="top" align="left">
<td width="11%"></td>
<td width="3%">

−R</td>
<td width="8%"></td>
<td width="78%">

Set special relative path to quota_file. If this
option is specified, quota file location will depends on
path to quota accounting dir: if your quota accounting path
is /path/to/somewhere/ than quota file will be
/path/to/quota.somewhere. If this option is not
specified, quota file location is
/var/vzquota/quota.quota_id. All commands accept this
option. </td></tr>
</table>

−c
quota_file

This option allows to specify a
quota_file to work with. All commands accept this
option. If this option is not specified, default file
location depends on whether -R option is specified or
not (see above).

<table width="100%" border="0" rules="none" frame="void"
cellspacing="0" cellpadding="0">
<tr valign="top" align="left">
<td width="11%"></td>
<td width="3%">

−f</td>
<td width="8%"></td>
<td width="78%">

Force option. Accepted by drop, on,
off, stat, setlimit and
setlimit2 commands. Action of this option differs for
different commands and is described above for each command
separately. </td></tr>
<tr valign="top" align="left">
<td width="11%"></td>
<td width="3%">

−t</td>
<td width="8%"></td>
<td width="78%">

For stat and show commands only. Processes
user/group quota statistics. Specifies whether to show
(update in file) user/group quota information.</td></tr>
<tr valign="top" align="left">
<td width="11%"></td>
<td width="3%">

−t</td>
<td width="8%"></td>
<td width="78%">

For setlimit2 command. Set second-level quota
time grace parameters.</td></tr>
</table>

== LIMITATIONS ==

It is
impossible to start or stop quota accounting if the
directory given by -p option is busy. This is rather
limitation of kernel part of disk quota implementation.

== DISPLAY ==

vzquota
stat and vzquota show display the following
information:

resource
- 1k-blocks or inodes.

usage -
current usage of resource.

softlimit
- resource limit. Current usage can exceed this limit up to
hard limit during grace time.

hardlimit
- resource limit. Current usage can’t exceed this
limit.

grace -
during this amount of time usage can exceed softlimit. If a
soft limit has not been exceeded the grace column is blank.
If the grace period has expired, the grace column contain
special none value.

If
−t is specified the following information is
displayed also:

User/group
quota - on|off, active|inactive. Status of the 2nd level
quota. on|off defines the state of the 2nd level quota at
the next start of container quota. active|inactive indicates
the current state of the 2nd level quota in kernel.

Ugids -
loaded, total and limit. loaded
is number of records (uids or gids) in kernel. total
is number of unique records located in the kernel and quota
file. limit is current kernel limits of records
amount. loaded and total may be greater then
limit.

Ugid limit
was exceeded - yes or no. Yes indicates that
vzquota did not loaded all records in kernel. In this case
you should reduce number of unique records (remove files
which belong to unnecessary users) or increase limit.
After that you should restart quota.

User/group
grace times and quotafile flags - during grace time
usage can exceed softlimit. Quotafile flags are internal
parameters of standard linux kernel quota v.3.

== EXIT STATUS ==

<table width="100%" border="0" rules="none" frame="void"
cellspacing="0" cellpadding="0">
<tr valign="top" align="left">
<td width="11%"></td>
<td width="3%">

0</td>
<td width="8%"></td>
<td width="78%">

Command executed
successfully </td></tr>
<tr valign="top" align="left">
<td width="11%"></td>
<td width="3%">

1</td>
<td width="8%"></td>
<td width="78%">

System error</td></tr>
<tr valign="top" align="left">
<td width="11%"></td>
<td width="3%">

2</td>
<td width="8%"></td>
<td width="78%">

Usage error</td></tr>
<tr valign="top" align="left">
<td width="11%"></td>
<td width="3%">

3</td>
<td width="8%"></td>
<td width="78%">

Virtuozzo syscall error</td></tr>
<tr valign="top" align="left">
<td width="11%"></td>
<td width="3%">

4</td>
<td width="8%"></td>
<td width="78%">

Quota file error</td></tr>
<tr valign="top" align="left">
<td width="11%"></td>
<td width="3%">

5</td>
<td width="8%"></td>
<td width="78%">

Quota is already running</td></tr>
<tr valign="top" align="left">
<td width="11%"></td>
<td width="3%">

6</td>
<td width="8%"></td>
<td width="78%">

Quota is not running</td></tr>
<tr valign="top" align="left">
<td width="11%"></td>
<td width="3%">

7</td>
<td width="8%"></td>
<td width="78%">

Can not get lock on this quota id</td></tr>
<tr valign="top" align="left">
<td width="11%"></td>
<td width="3%">

8</td>
<td width="8%"></td>
<td width="78%">

Directory tree crosses mount points</td></tr>
<tr valign="top" align="left">
<td width="11%"></td>
<td width="3%">

9</td>
<td width="8%"></td>
<td width="78%">

Quota is running but user/group quota is inactive; this
status is returned by stat -t command for information
purposes and does not indicate a error</td></tr>
<tr valign="top" align="left">
<td width="11%"></td>
<td width="3%">

10</td>
<td width="8%"></td>
<td width="78%">

Quota is marked as dirty in file; this status is
returned by show command for information purposes and
does not indicate a error</td></tr>
<tr valign="top" align="left">
<td width="11%"></td>
<td width="3%">

11</td>
<td width="8%"></td>
<td width="78%">

Quota file does not exist</td></tr>
<tr valign="top" align="left">
<td width="11%"></td>
<td width="3%">

12</td>
<td width="8%"></td>
<td width="78%">

Internal error</td></tr>
<tr valign="top" align="left">
<td width="11%"></td>
<td width="3%">

13</td>
<td width="8%"></td>
<td width="78%">

Can’t obtain mount point</td></tr>
</table>

== COPYRIGHT ==

Copyright (C)
2000-2008, Parallels, Inc. Licensed under GNU GPL.

@@ Line 20: / Line 20: @@
 <i>command</i> can be one of the following: <b>init</b>,
 <b>drop</b>, <b>on</b>, <b>off</b>, <b>setlimit</b>,
-<b>setlimit2</b>, <b>stat</b>, <b>show</b>.</p>
+<b>setlimit2</b>, <b>reload2</b>, <b>stat</b>,
 <p style="margin-left:11%; margin-top: 1em">The
@@ Line 182: / Line 183: @@
 given quota_id is running and second-level quota is on.
 Stores new limits in the quota file.</p>
 <table width="100%" border="0" rules="none" frame="void"
@@ Line 225: / Line 231: @@
 based quota inside the container. Here <b>1</b> means to
 enable, and <b>0</b> - to disable. By default user/group
-quota is disabled. This option is accepted by <b>init</b>
+quota is disabled. This option is accepted by <b>init</b>,
-and <b>on</b> commands.</p>
+<b>on</b> and <b>setlimit</b> commands.</p>
 <p style="margin-left:11%;"><b>&minus;u&nbsp;</b><i>user_id</i></p>
@@ Line 631: / Line 637: @@
 <p style="margin-left:11%; margin-top: 1em">Copyright (C)
--2008, Parallels, Inc. Licensed under GNU GPL.</p>
+-2011, Parallels, Inc. Licensed under GNU GPL.</p>

@@ Line 1: / Line 1: @@
 == NAME ==
-<p style="margin-left:11%; margin-top: 1em">vzquota -
+<p style="margin-left:11%; margin-top: 1em">vzquota &minus;
 manipulate containers disk quotas</p>
@@ Line 449: / Line 449: @@
 parameters of standard linux kernel quota v.3.</p>
-== EXIT STATUS ==
+== DIAGNOSTICS ==
 <table width="100%" border="0" rules="none" frame="void"

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