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Diffstat (limited to 'Documentation/btrfs-filesystem.asciidoc')
| -rw-r--r-- | Documentation/btrfs-filesystem.asciidoc | 12 |
1 files changed, 6 insertions, 6 deletions
diff --git a/Documentation/btrfs-filesystem.asciidoc b/Documentation/btrfs-filesystem.asciidoc index 0f7ea495..b60ef74b 100644 --- a/Documentation/btrfs-filesystem.asciidoc +++ b/Documentation/btrfs-filesystem.asciidoc @@ -14,7 +14,7 @@ DESCRIPTION *btrfs filesystem* is used to perform several whole filesystem level tasks, including all the regular filesystem operations like resizing, space stats, label setting/getting, and defragmentation. There are other whole filesystem -taks like scrub or balance that are grouped in separate commands. +tasks like scrub or balance that are grouped in separate commands. SUBCOMMAND ---------- @@ -120,7 +120,7 @@ defragment files recursively in given directories flush data for each file before going to the next file. + This will limit the amount of dirty data to current file, otherwise the amount -cumulates from several files and will increase system load. This can also lead +accumulates from several files and will increase system load. This can also lead to ENOSPC if there's too much dirty data to write and it's not possible to make the reservations for the new data (ie. how the COW design works). + @@ -141,7 +141,7 @@ files, it will report a count of total bytes, and exclusive (not shared) bytes. We also calculate a 'set shared' value which is described below. + -Each argument to 'btrfs fi du' will have a 'set shared' value +Each argument to 'btrfs filesystem du' will have a 'set shared' value calculated for it. We define each 'set' as those files found by a recursive search of an argument. The 'set shared' value then is a sum of all shared space referenced by the set. @@ -170,7 +170,7 @@ show sizes in GiB, or GB with --si. --tbytes:::: show sizes in TiB, or TB with --si. -*label* [<dev>|<mountpoint>] [<newlabel>]:: +*label* [<device>|<mountpoint>] [<newlabel>]:: Show or update the label of a filesystem. This works on a mounted filesystem or a filesystem image. + @@ -196,7 +196,7 @@ If the prefix '+' or '-' is present the size is increased or decreased by the quantity 'size'. If no units are specified, bytes are assumed for 'size'. Optionally, the size parameter may be suffixed by one of the following -units designators: \'K', \'M', \'G', \'T', \'P', or \'E', which represent +unit designators: \'K', \'M', \'G', \'T', \'P', or \'E', which represent KiB, MiB, GiB, TiB, PiB, or EiB, respectively (case does not matter). + If 'max' is passed, the filesystem will occupy all available space on the @@ -262,7 +262,7 @@ root user (due to use of restricted ioctl). For both there's a summary section with information about space usage: + ------------------------- -$ btrfs fi usage /path +$ btrfs filesystem usage /path WARNING: cannot read detailed chunk info, RAID5/6 numbers will be incorrect, run as root Overall: Device size: 1.82TiB |