14 Mar 2019
gfdf 1 Gfarm
gfdf display disk free space of Gfarm file system
`gfdf` options

## DESCRIPTION

`gfdf` displays disk usage and free space of Gfarm file system.

## OPTIONS

`-a`

  Displays only summary information of the Gfarm file system.

`-h`

  Displays numbers in human readable format by adding a prefix multiplier symbol like "M" (mega). Since this option uses powers of 1024, "M" means 1,048,576.

`-H`

  Displays numbers in human readable format by adding a prefix multiplier symbol like "M" (mega). Since this option uses powers of 1000, "M" means 1,000,000.

`-n`

  Displays hostnames of available Gfarm file system nodes.

`-r`

  Sort output in the reverse order.

`-S`

  Sort output in the increasing order of the available disk capacity.

`-P` path

  Specifies a path name to specify a metadata server instead of the root metadata server. Note that this option is not effective with the -a option.

`-D` domainname

  Specifies a domain name of filesystem nodes to list the status of disk free space.

`-R`

  Displays real disk spaces even if some Gfarm file system nodes are readonly. Please see also the following NOTES.

`-?`

  Displays a list of command options.

## NOTES

Filesystem nodes may be changed to a read-only mode by the `gfhost` command. The read-only filesystem nodes are internally treated as disk full not to create a new file. That is why `gfdf` shows these read-only filesystem nodes have no available capacity. With the -R option, `gfdf` shows the real disk usage. The -a option is not affected by this behavior, which shows the real disk usage always.

## SEE ALSO

gfhost 1 , gfarm2.conf 5