From: Goffredo Baroncelli <kreijack@gmail.com>
To: linux-btrfs@vger.kernel.org
Cc: "Hugo Mills" <hugo@carfax.org.uk>,
"Roman Mamedov" <rm@romanrm.ru>,
"Sébastien Maury" <sebastien.maury@inserm.fr>,
"Ilya Dryomov" <idryomov@gmail.com>
Subject: [PATCH][BTRFS-PROGS][V2] btrfs filesystem df
Date: Wed, 3 Oct 2012 19:22:30 +0200 [thread overview]
Message-ID: <1349284952-6865-1-git-send-email-kreijack@inwind.com> (raw)
>From the man page (see 2nd patch):
[...]
The command btrfs filesystem df is used to query the
status of the chunks, how many space on the disk(s) are used by
the chunks, how many space are available in the chunks, and an
estimation of the free space of the filesystem.
[...]
$ ./btrfs filesystem df --help
usage: btrfs filesystem disk-usage [-d|-s][-k] <path> [<path>..]
Show space usage information for a mount point(s).
-k Set KB (1024 bytes) as unit
-s Show the summary section only
-d Show the detail section only
$ ./btrfs filesystem df /
Path: /
Summary:
Disk_size: 72.57GB
Disk_allocated: 25.10GB
Disk_unallocated: 47.48GB
Logical_size: 23.06GB
Used: 11.01GB
Free_(Estimated): 55.66GB (Max: 59.52GB, Min: 35.78GB)
Data_to_disk_ratio: 92 %
Details:
Chunk-type Mode Chunk_size Logical_size Used
Data Single 21.01GB 21.01GB 10.34GB
System DUP 80.00MB 40.00MB 4.00KB
System Single 4.00MB 4.00MB 0.00
Metadata DUP 4.00GB 2.00GB 686.93MB
Metadata Single 8.00MB 8.00MB 0.00
Where:
Disk_size -> sum of sizes of teh disks
Disk_allocated -> sum of chunk sizes
Disk_unallocated -> Disk_size - Disk_allocated
Logical_size -> sum of logical area sizes
Used -> logical area used
Free_(Estimated) -> on the basis of allocated
chunk, an estrapolation of
the free space
Data_to_disk_ratio -> ration between the space occuped
by a chunk and the real space
available ( due to duplication
and/or RAID level)
Chunk_type -> kind of chunk
Mode -> allocation policy of a chunk
Chunk_size -> area of disk(s) occuped by the
chunk (see it as raw space used)
Logical_size -> logical area size of the chunk
Used -> portion of the logical area
used by the filesystem
You can pull this change from
http://cassiopea.homelinux.net/git/btrfs-progs-unstable.git
branch
disk_free
Please pull.
BR
Goffredo Baroncelli
Changelog:
V0->V1 Change the name of command from disk-usage to df
V1->V2 Uses getopt(); replace "-" with "_"; change the behaviour
of the switches '-s' and '-d'.
Signed-off-by: Goffredo Baroncelli <kreijack@inwind.it>
next reply other threads:[~2012-10-03 17:22 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-10-03 17:22 Goffredo Baroncelli [this message]
2012-10-03 17:22 ` [PATCH 1/2] Update btrfs filesystem df command Goffredo Baroncelli
2012-10-03 20:34 ` Ilya Dryomov
2012-10-03 20:38 ` Hugo Mills
2012-10-03 20:43 ` Ilya Dryomov
2012-10-03 20:53 ` Goffredo Baroncelli
2012-10-03 17:22 ` [PATCH 2/2] Update help page Goffredo Baroncelli
2012-10-03 19:32 ` [PATCH][BTRFS-PROGS][V2] btrfs filesystem df David Sterba
2012-10-03 19:38 ` Goffredo Baroncelli
2012-10-04 7:15 ` David Sterba
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