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NAME | SYNOPSIS | DESCRIPTION | OPTIONS | COMMANDS | COLOPHON |
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xfs_spaceman(8) System Manager's Manual xfs_spaceman(8)
xfs_spaceman - show free space information about an XFS filesystem
xfs_spaceman [ -c cmd ] file
xfs_spaceman -V
xfs_spaceman reports and controls free space usage in an XFS
filesystem.
-c cmd xfs_spaceman commands may be run interactively (the
default) or as arguments on the command line. Multiple -c
arguments may be given. The commands are run in the
sequence given, then the program exits.
freesp [ -dgrs ] [-a agno]... [ -b | -e bsize | -h bsize | -m factor
]
With no arguments, freesp shows a histogram of all free space
extents in the filesystem. The command takes the following
options:
-a agno
Collect free space information from this allocation
group. This option can be specified multiple times to
collect from multiple groups.
-b This argument establishes that the histogram bin sizes
are successive powers of two. This is the default, and
is mutually exclusive with the -e, -h, and -m options.
-d Print debugging information such as the raw free space
extent information.
-g Print the free space block and extent counts for each
AG.
-e bsize
Set all histogram bin sizes to a specific value. This
option is mutually exclusive with the -b, -h, and -m
options.
-h bsize
Create a histogram bin with a lower bound of this
value. The upper bound of this bin will be one less
than the lower bound of the next highest histogram bin.
This option can be given multiple times to control the
exact bin sizes. This option is mutually exclusive
with the -b, -e, and -m options.
-m factor
Create each histogram bin with a size that is this many
times the size of the prvious bin created. This option
is mutually exclusive with the -b, -e, and -h options.
-r Query the realtime device for free space information.
-s Display a summary of the free space information found.
help [ command ]
Display a brief description of one or all commands.
prealloc [ -u id ] [ -g id ] [ -p id ] [ -m minlen ] [ -s ]
Removes speculative preallocation. If no -u, -g, or -p
options are given, this command acts on all files. The
command takes the following options:
-u uid
Clear all speculative preallocations for files with
this user id. This option can be given in combination
with the -g and -p options.
-g gid
Clear all speculative preallocations for files with
this group id. This option can be given in combination
with the -u and -p options.
-p pid
Clear all speculative preallocations for files with
this project id. This option can be given in
combination with the -u and -g options.
-m minlen
Ignore all files smaller than this size. Units can be
supplied for this argument.
-s Wait for removal to complete.
print Display a list of all open files.
quit Exit xfs_spaceman.
trim ( -a agno | -f | offset length ) [ -m minlen ]
Instructs the underlying storage device to release all storage
that may be backing free space in the filesystem. The command
takes the following options: (One of -a, -f, or the
offset/length pair are required.)
-a agno
Trim free space extents in the given allocation group.
This option is mutually exclusive with the -f option
and the offset/length options.
-f Trim all free space in the filesystem. This option is
mutually exclusive with the -a option and the
offset/length options.
option, length
Trim all free space within the physical range defined
by the offset and length from this filesystem. Units
can be appended to these arguments. This option is
mutually exclusive with the -a and -f options.
-m minlen
Do not trim free space extents shorter than this
length. Units can be appended to this argument.
This page is part of the xfsprogs (utilities for XFS filesystems)
project. Information about the project can be found at
⟨http://xfs.org/⟩. If you have a bug report for this manual page, see
⟨http://oss.sgi.com/bugzilla/buglist.cgi?product=XFS⟩. This page was
obtained from the project's upstream Git repository
⟨git://oss.sgi.com/xfs/cmds/xfsprogs⟩ on 2018-02-02. (At that time,
the date of the most recent commit that was found in the repository
was 2017-11-27.) If you discover any rendering problems in this HTML
version of the page, or you believe there is a better or more up-to-
date source for the page, or you have corrections or improvements to
the information in this COLOPHON (which is not part of the original
manual page), send a mail to man-pages@man7.org
xfs_spaceman(8)
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