btrfstune(8) centos man page | unix.com

BTRFSTUNE(8)						      System Manager's Manual						      BTRFSTUNE(8)

NAME
       btrfstune - tune various filesystem parameters.

SYNOPSIS
       btrfstune [options] <mnt>

DESCRIPTION
       btrfstune is used to tune various filesystem parameters,you can enable/disable some extended features for btrfs.

       Options

       -S <value>
	    updates the seeding value, it forces a fs readonly so that you can use it to build other filesystems.

       -r   enable extended inode refs.

       -x   enable skinny metadata extent refs.

EXIT CODE
       btrfstune will return 0 if no error happened.  If any problems happened, 1 will be returned.

AUTHOR
       Written by Shilong Wang and Wenruo Qu.

COPYRIGHT
       Copyright (C) 2013 Fujitsu, Inc.  License GPLv2: GNU GPL version 2 <http://gnu.org/licenses/gpl.html>.
       This is free software: you are free  to	change	and  redistribute  it. There is NO WARRANTY, to the extent permitted by law.

SEE ALSO
       mkfs.btrfs(8)

																      BTRFSTUNE(8)