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24.

list projects or setup a project tree for tree quota management

Example:
'project -c logfiles'
(match project 'logfiles' to a directory, and setup the directory tree)

Without arguments, report all projects found in the /etc/projects file.
The project quota mechanism in XFS can be used to implement a form of
directory tree quota, where a specified directory and all of the files
and subdirectories below it (i.e. a tree) can be restricted to using a
subset of the available space in the filesystem.

A managed tree must be setup initially using the -c option with a project.
The specified project name or identifier is matched to one or more trees
defined in /etc/projects, and these trees are then recursively descended
to mark the affected inodes as being part of that tree - which sets inode
flags and the project identifier on every file.
Once this has been done, new files created in the tree will automatically
be accounted to the tree based on their project identifier. An attempt to
create a hard link to a file in the tree will only succeed if the project
identifier matches the project identifier for the tree. The xfs_io utility
can be used to set the project ID for an arbitrary file, but this can only
be done by a privileged user.

A previously setup tree can be cleared from project quota control through
use of the -C option, which will recursively descend the tree, clearing
the affected inodes from project quota control.

The -c option can be used to check whether a tree is setup, it reports
nothing if the tree is correct, otherwise it reports the paths of inodes
which do not have the project ID of the rest of the tree, or if the inode
flag is not set.

The -p <path> option can be used to manually specify project path without
need to create /etc/projects file. This option can be used multiple times
to specify multiple paths. When using this option only one projid/name can
be specified at command line. Note that /etc/projects is also used if exists.

The -d <depth> option allows to descend at most <depth> levels of directories
below the command line arguments. -d 0 means only apply the actions
to the top level of the projects. -d -1 means no recursion limit (default).

The /etc/projid and /etc/projects file formats are simple, and described
on the xfs_quota man page.

63.

Blocks Quota Limit Warn/Time

67.

Realtime Quota Limit Warn/Time

68.

Realtime Quota Limit Warn/Time

77.

reports the number of free disk blocks and inodes

This command reports the number of total, used, and available disk blocks.
It can optionally report the same set of numbers for inodes and realtime
disk blocks, and will report on all known XFS filesystem mount points and
project quota paths by default (see 'print' command for a list).
-b -- report the block count values
-i -- report the inode count values
-r -- report the realtime block count values
-h -- report in a human-readable format
-N -- suppress the header from the output

78.

%s: project quota flag not set on %s

83.

1K-blocks Used Available Use%%

85.

Inodes IUsed IFree IUse%%

93.

create a backup file which contains quota limits information
-g -- dump out group quota limits
-p -- dump out project quota limits
-u -- dump out user quota limits (default)
-f -- write the dump out to the specified file

96.

report used space and inodes, and quota limits, for a filesystem
Example:
'report -igh'
(reports inode usage for all groups, in an easy-to-read format)
This command is the equivalent of the traditional repquota command, which
prints a summary of the disk usage and quotas for the current filesystem,
or all filesystems.
-a -- report for all mounted filesystems with quota enabled
-h -- report in a human-readable format
-n -- skip identifier-to-name translations, just report IDs
-N -- suppress the header from the output
-t -- terse output format, hides rows which are all zero
-L -- lower ID bound to report on
-U -- upper ID bound to report on
-g -- report group usage and quota information
-p -- report project usage and quota information
-u -- report user usage and quota information
-b -- report blocks-used information only
-i -- report inodes-used information only
-r -- report realtime-blocks-used information only