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)