NAME

       mfsgoal - MooseFS goal management tools

SYNOPSIS

       mfsgetgoal [-r] [-n|-h|-H|-k|-m|-g] OBJECT...

       mfssetgoal [-r] [-n|-h|-H|-k|-m|-g] GOAL[+|-] OBJECT...

       mfscopygoal [-r] [-n|-h|-H|-k|-m|-g] SOURCE_OBJECT OBJECT...

       mfsrgetgoal [-n|-h|-H|-k|-m|-g] OBJECT...

       mfsrsetgoal [-n|-h|-H|-k|-m|-g] GOAL[+|-] OBJECT...

DESCRIPTION

       These  tools operate on object's goal value, i.e. the number of copies in which all file data are stored.
       It means that file should survive failure of one less chunkservers than its goal value. Goal must be  set
       between 1 and 9 (note that 1 is strongly unadvised).

       mfsgetgoal  prints  current goal value of given object(s).  -r option enables recursive mode, which works
       as usual for every given file, but for every given directory additionally prints current  goal  value  of
       all contained objects (files and directories).

       mfssetgoal  changes  current  goal  value  of given object(s). If new value is specified in N+ form, goal
       value is increased to N for objects with lower goal value and unchanged for the rest.  Similarly, if  new
       value  is  specified as N-, goal value is decreased to N for objects with higher goal value and unchanged
       for the rest. -r option enables recursive mode.  These tools can  be  used  on  any  file,  directory  or
       deleted (trash) file.

       mfscopygoal tool can be used to copy goal value from one object to another.

       mfsrgetgoal and mfsrsetgoal are deprecated aliases for mfsgetgoal -r and mfssetgoal -r respectively.

STORAGE CLASSES

       Since  version  3.0 of MooseFS goal has been extended to storage classes.  Using storage classes user can
       also specify chunkservers on which copies should be stored by defining  label  expressions.  To  maintain
       compatibility  with standard goal semantics, there are predefined storage classes from 1 to 9. Goal tools
       simply work only on these classes.  To achieve more sophisticated  storage  scenarios  use  sclass  tools
       (mfsgetsclass,mfssetsclass,...)

GENERAL OPTIONS

       Most  of mfstools use -n, -h, -H, -k, -m and -g options to select format of printed numbers. -n causes to
       print exact numbers, -h uses binary prefixes (Ki, Mi, Gi as 2^10, 2^20 etc.) while -H  uses  SI  prefixes
       (k,  M,  G  as  10^3,  10^6  etc.). -k, -m and -g show plain numbers respectivaly in kibis (binary kilo -
       1024), mebis (binary mega - 1024^2) and gibis (binary giga -  1024^3).   The  same  can  be  achieved  by
       setting  MFSHRFORMAT  environment  variable  to:  0 (exact numbers), 1 or h (binary prefixes), 2 or H (SI
       prefixes), 3 or h+ (exact numbers and binary prefixes), 4 or H+ (exact  numbers  and  SI  prefixes).  The
       default is to print just exact numbers.

INHERITANCE

       When  new  object is created in MooseFS, attributes such as storage class, trashtime and extra attributes
       are inherited from parent directory. So if  you  set  i.e.  "noowner"  attribute  and  storage  class  to
       "important" in a directory then every new object created in this directory will have storage class set to
       "important" and "noowner" flag set. A newly created  object  inherits  always  the  current  set  of  its
       parent's  attributes.  Changing  a  directory  attribute does not affect its already created children. To
       change an attribute for a directory and all of its children use -r option.

REPORTING BUGS

       Report bugs to <bugs@moosefs.com>.

COPYRIGHT

       Copyright (C) 2021 Jakub Kruszona-Zawadzki, Core Technology Sp. z o.o.

       This file is part of MooseFS.

       MooseFS is free software; you can redistribute it and/or modify it under the terms  of  the  GNU  General
       Public License as published by the Free Software Foundation, version 2 (only).

       MooseFS  is  distributed  in  the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the
       implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR  PURPOSE.  See  the  GNU  General  Public
       License for more details.

       You  should  have  received a copy of the GNU General Public License along with MooseFS; if not, write to
       the Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston,  MA  02111-1301,  USA  or  visit
       http://www.gnu.org/licenses/gpl-2.0.html

SEE ALSO

       mfsmount(8), mfstools(1), mfssclass(1)