mfsmodifysclass(1) MooseFS (NAME) mfsmodifysclass - MooseFS (SYNOPSIS) mfsmodifysclass [-?] [-M _] [-c ] [-p ] [-g _] [-a _] [-m _] [-o _] [-C _] [-K _] [-A _] [-d _] [-s __] [-T __] [-t ____] __... (DESCRIPTION) mfsmodifysclass () __ . (Redundancy Policy) . mfssclass ( mfssclass(1)) MooseFS ( ) . (Labels Expressions) . . (Copies) (Erasure-Coding EC) . ( ) (4+n 8+n). (Chunkservers) . MooseFS : mfscreatesclass . mfsmodifysclass . mfsdeletesclass . mfsclonesclass . mfsrenamesclass . mfslistsclass . mfsimportsclass . (OPTIONS) -C ( _) . _ . -K _ ( ) . -A ( _) . atime/mtime/ctime ( -o) -d . -d atime/mtime/ctime ( -o) ( ) ( ) . -o : C - ctime M - mtime A - atime R - (Reversible) F - (Fastmode) P - (Per Chunk) C . -s . -T (Trash) ( __) -t . -t -T ( ) . -c ( ). -p . -g (Export Group) mfsexport.cfg(5) . -a () (). -m l ( L loose Loose LOOSE) (LOOSE) d ( D std Std STD) (STANDARD) s ( S strict Strict STRICT) (STRICT) STANDARD . -M MooseFS MooseFS MooseFS /mnt/mfs/ . -? . (NOTES) (LABELS EXPRESSIONS) (A-Z - ) (Chunkservers) . ( ) . mfschunkserver.cfg . . (Copies) . (*) . (+) (!) . (OR ). (AND ). . . . (EC) @ + () . 4 8 . 1 ( CE) 1 9 ( PRO) . @4+1 EC @8+3 EC . DEFAULT_EC_DATA_PARTS ( mfsmaster.cfg(5)). @2 @8+2 @4+2 . . . . EC ( EC ). EC ARCH_LABELS TRASH_LABELS . . (Distinguish) (/) . (Labels Mode Override) (:) . : [IP] [I] - IP [RACK] [R] - (RACK) ( mfstopology.cfg(5)) IP . EC . ! CHUNKS_UNIQUE_MODE mfsmaster.cfg . mfsmaster.cfg(5) . : d ( D std Std STD) s ( S strict Strict STRICT) l ( L loose Loose LOOSE) STANDARD STRICT LOOSE . . . : A,B - () A () B . A,* - () A . A,!A - () A A . *,* - ( ) . AB,C+D+E - A B ( ) C D E ( ) . A,B[X+Y],C[X+Y] - A B X Y C X Y . 2A A,A . A,3BC A,BC,BC,BC . 2 2* *,* . 3*/[IP] - IP . A,B/[RACK] - A B . S,H,H/ABX-Z - S H A B X Y Z . @4+1 - EC . @8+3 - EC . @2 - EC . @4+3,Z - EC Z . @2,A(X+Y) - EC A X Y . @3,S,H - EC S H . AB,AC:l - A B A C LOOSE . @4+2,X,Y:s - EC X Y STRICT . 2A/[IP]:s - A IP STRICT . (LABEL MODES) : . ( ) . . : STANDARD LOOSE STRICT. EC . (Copies) : STANDARD (Overload) (Replicate) . (Undergoal) . STRICT (ENOSPC) . . . ! LOOSE . . : STANDARD STRICT LOOSE CREATE - OVERLOADED WAIT WAIT WRITE ANY CREATE - NO SPACE WRITE ANY ENOSPC WRITE ANY REPLICATE - OVERLOADED WAIT WAIT WRITE ANY REPLICATE - NO SPACE WRITE ANY NO COPY WRITE ANY (EC) : EC EC . EC @N+X N ( ) X / ( CE PRO) : - N+2X EC - N+X EC - N+X ( KEEP) . LOOSE <<>> ( ) N+2X N+X . EC . STRICT N+2X N+X . <<>> . STANDARD EC STRICT ( N+2X ). EC LOOSE (N+X). LOOSE . ! EC << >> (Local Split) EC . . STRICT . (TIME) ( ) : : #.#T T : s () m () h () d () w () . : #w#d#h#m#s ( #d#m #m#d ) : s,m h d w . . . : 1.5d 1d12h 36h . 2.5w 2w3d12h 420h 2w84h ( h ). (ARCHIVE BEHAVIOUR) -d . atime/ctime/mtime R -o . . : C - ctime ( ). M - mtime . A - atime . R - atime/mtime/ctime . F - -d . P - mtime . ( mfsarchive(1)). : ARCHIVE . KEEP . . (STORAGE CLASSES PRIORITY) ( mfssnapshots(1)) . . . : - (RL) - EC ARCHIVE EC - KEEP ARCHIVE - EC TRASH - TRASH - (ID) . (PREDEFINED STORAGE CLASSES) MooseFS : 2CP - KEEP ( /). 3CP - KEEP . EC4+1 - KEEP ARCHIVE EC4+1 ctime EC . EC4+2 - ( PRO) KEEP ARCHIVE EC4+2 ctime. EC8+1 - KEEP ARCHIVE EC8+1 ctime. EC8+2 - ( PRO) KEEP ARCHIVE EC8+2 ctime. . (EXAMPLES) "ClassEC4_1" ( ): mfsmodifysclass -d 2d -o m ClassEC4_1 "Class3Copies" ( LOOSE) "A" "B" (overloaded) : mfsmodifysclass -m l Class3Copies (REPORTING BUGS) . (COPYRIGHT) (C) 2026 Jakub Kruszona-Zawadzki, Saglabs SA MooseFS . (GNU GPL) . . . . (SEE ALSO) mfsmount(8), mfstools(1), mfssclass(1), mfsarchive(1), mfsscadmin(1), mfscreatesclass(1), mfsdeletesclass(1), mfsmaster.cfg(5), mfschunkserver.cfg(5), mfstopology.cfg(5) MooseFS 4.59.2-1 May 2026 mfsmodifysclass(1)