-.TH lfs 1 "2009 Jan 29" Lustre "user utilities"
+.TH lfs 1 "2018-01-24" Lustre "user utilities"
.SH NAME
-lfs \- Lustre utility to create a file with specific striping pattern, find the striping pattern of existing files, do certain quota operations, and manage distributed namespace options for directories
+lfs \- client utility for Lustre-specific file layout and other attributes
.SH SYNOPSIS
.br
-.B lfs
+.B lfs changelog \fR[\fB--follow\fR] <\fImdtname\fR> [\fIstartrec \fR[\fIendrec\fR]]
.br
-.B lfs changelog [--follow] <mdtname> [startrec [endrec]]
+.B lfs changelog_clear <\fImdtname\fR> <\fIid\fR> <\fIendrec\fR>
.br
-.B lfs changelog_clear <mdtname> <id> <endrec>
+.B lfs check \fR<\fBmgts\fR|\fBmdts\fR|\fBosts\fR|\fBall\fR>
.br
-.B lfs check <mds|osts|servers>
+.B lfs data_version \fR[\fB-nrw\fR] \fB<\fIfilename\fR>
.br
-.B lfs df [-i] [-h] [--lazy] [--pool|-p <fsname>[.<pool>] [path]
+.B lfs df \fR[\fB-ihlv\fR] [\fB--pool\fR|\fB-p \fR<\fIfsname\fR>[.<\fIpool\fR>]] [\fIpath\fR]
.br
-.B lfs fid2path [--link <linkno>] <fsname|rootpath> <fid> ...
+.B lfs fid2path \fR[\fB--link \fR<\fIlinkno\fR>] <\fIfsname\fR|\fIrootpath\fR> <fid\fR> ...
.br
-.B lfs find <directory|filename>
- \fB[[!] --atime|-A [-+]N] [[!] --mtime|-M [-+]N] [[!] --ctime|-C [+-]N]
- \fB[--maxdepth|-D N] [[!] --mdt|-m <uuid|index,...>] [--name|-n pattern]
- \fB[[!] --ost|-O <uuid|index,...>] [--print|-p] [--print0|-P]
- \fB[[!] --size|-s [-+]N[kMGTPE]]
- \fB[[!] --stripe-count|-c [+-]<stripes>]
- \fB[[!] --stripe-index|-i <index,...>]
- \fB[[!] --stripe-size|-S [+-]N[kMG]]
- \fB[[!] --layout|-L raid0,released]
- \fB[--type |-t {bcdflpsD}] [[!] --gid|-g|--group|-G <gname>|<gid>]
- \fB[[!] --uid|-u|--user|-U <uname>|<uid>] [[!] --pool <pool>]\fR
+.B lfs find \fR<\fIdirectory\fR|\fIfilename \fR...>
+ [[\fB!\fR] \fB--atime\fR|\fB-A\fR [\fB-+\fR]\fIn\fR]
+[[\fB!\fR] \fB--ctime\fR|\fB-C\fR [\fB+-\fR]\fIn\fR]
+ [[\fB!\fR] \fB--mtime\fR|\fB-M\fR [\fB-+\fR]\fIn\fR]
+ [[\fB!\fR] \fB--component-count\fR|\fB--comp-count\fR [\fB+-\fR]\fIn\fR]
+ [[\fB!\fR] \fB--component-flags\fR|\fB--comp-flags\fR <[\fB^\fR]\fIflag\fB,\fR...>]
+ [[\fB!\fR] \fB--component-end\fR|\fB--comp-end\fR|\fB-E\fR [\fB+-\fR]\fIn\fR[\fBKMGTPE\fR]]
+ [[\fB!\fR] \fB--component-start\fR|\fB--comp-start\fR [\fB+-\fR]\fIn\fR[\fBKMGTPE\fR]]
+ [[\fB!\fR] \fB--mirror-count\fR|\fB-N\fR [\fB+-\fR]\fIn\fR]
+ [[\fB!\fR] \fB--mirror-state\fR <[^]\fIstate\fR>]
+ [[\fB!\fR] \fB--gid\fR|\fB-g\fR|\fB--group\fR|\fB-G\fR <\fIgname\fR>|<\fIgid\fR>]
+ [[\fB!\fR] \fB--layout\fR|\fB-L mdt\fR,\fBraid0\fR,\fBreleased\fR]
+[\fB--maxdepth\fR|\fB-D\fI n\fR]
+ [[\fB!\fR] \fB--mdt\fR|\fB--mdt-index\fR|\fB-m\fR <\fIuuid\fR|\fIindex\fR,...>]
+ [[\fB!\fR] \fB--mdt-count\fR|\fB-T\fR [\fB+-\fR]\fIn\fR]
+[[\fB!\fR] \fB--mdt-hash\fR|\fB-H \fI<hashtype>\fR]
+ [[\fB!\fR] \fB--name\fR|\fB-n \fI<pattern>\fR]
+[[\fB!\fR] \fB--ost\fR|\fB-O\fR <\fIuuid\fR|\fIindex\fR,...>]
+ [[\fB!\fR] \fB--pool\fR <\fIpool\fR>]
+[\fB--print\fR|\fB-P\fR] [\fB--print0\fR|\fB-0\fR]
+ [[\fB!\fR] \fB--projid\fR |<\fIprojid\fR>]
+[[\fB!\fR] \fB--size|\fB-s\fR [\fB-+\fR]\fIn\fR[\fBKMGTPE\fR]]
+ [[\fB!\fR] \fB--stripe-count\fR|\fB-c\fR [\fB+-\fR]\fIn\fR]
+ [[\fB!\fR] \fB--stripe-index\fR|\fB-i\fR \fIn\fR,...]
+ [[\fB!\fR] \fB--stripe-size\fR|\fB-S\fR [\fB+-\fR]\fIn\fR[\fBKMG\fR]]
+[[\fB!\fR] \fB--type\fR|\fB-t\fR {\fBbcdflps\fR}]
+ [[\fB!\fR] \fB--uid\fR|\fB-u\fR|\fB--user\fR|\fB-U
+\fR<\fIuname\fR>|<\fIuid\fR>]
.br
-.B lfs getname [-h]|[path ...]
+.B lfs getname
+.RB [ --help | -h "] [" --instance | -i "] [" --fsname | -n "] ["
+.IR path ...]
.br
-.B lfs getstripe [--obd|-O <uuid>] [--quiet|-q] [--verbose|-v]
- \fB[--stripe-count|-c ] [--stripe-index|-i] [--mdt-index|-M]
- \fB[--stripe-size|-S] [--directory|-d]
- \fB[--layout|-L]
- \fB[--pool|-p] [--recursive|-r] [--raw|-R] <dirname|filename> ...\fR
+.B lfs getstripe
+[\fB--component-count\fR|\fB--comp-count\fR]
+ [\fB--component-end\fR|\fB-E\fR[=[\fB+-\fR]\fIN\fR[\fBKMGTPE\fR]]
+ [\fB--component-flags\fR[=[\fB^\fR]\fIflag\fB,\fR...]]
+ [\fB--component-id\fR|\fB-I \fR[=\fIcomp_id\fR]]
+ [\fB--component-start\fR[=[\fB+-\fR]\fIN\fR[\fBKMGTPE\fR]]]
+ [\fB--directory\fR|\fB-d\fR]
+[\fB--fid\fR|\fB-F\fR]
+[\fB--generation\fR|\fB-g\fR]
+ [\fB--layout\fR|\fB-L\fR]
+[\fB--mdt\fR|\fB--mdt-index\fR|\fB-m\fR]
+[\fB--ost\fR|\fB-O\fR <\fIuuid\fR>]
+ [\fB--pool\fR|\fB-p\fR]
+[\fB--quiet\fR|\fB-q\fR]
+[\fB--recursive\fR|\fB-r\fR]
+ [\fB--raw\fR|\fB-R\fR]
+[\fB--stripe-count\fR|\fB-c\fR]
+[\fB--stripe-index\fR|\fB-i\fR]
+ [\fB--stripe-size\fR|\fB-S\fR]
+[\fB--verbose\fR|\fB-v\fR]
+[\fB--yaml\fR|\fB-y\fR]
+ <\fIdirname\fR|\fIfilename\fR> ...
.br
-.B lfs setstripe [--stripe-size|-S stripe_size] [--stripe-count|-c stripe_count]
- \fB[--stripe-index|-i start_ost_index ] [--pool|-p <poolname>]
- \fB<directory|filename>\fR
+.B lfs migrate \fR{\fB--mdt-index\fR|\fB-m\fR} <\fImdt_index\fR> \fIdirectory\fR
.br
-.B lfs setstripe -d <dir>
+.B lfs migrate \fR[\fB--stripe-count\fR|\fB-c\fR \fR<\fIstripe_count\fR>]
+ [\fB--stripe-index\fR|\fB-i\fR \fR<\fIstart_ost_idx\fR>]
+ [\fB--stripe-size\fR|\fB-S\fR \fR<\fIstripe_size\fR>]
+[\fB--pool\fR|\fB-p\fR \fR<\fIpool_name\fR>]
+ [\fB-o\fR|\fB--ost-list \fR<\fIost_indices\fR>]
+[\fB--block\fR|\fB-b\fR]
+ [\fB--non-block\fR|\fB-n\fR] <\fIfile\fR|\fIdirectory\fR>
.br
-.B lfs osts
-.RB [ path ]
+.B lfs migrate \fR<\fB--component-end\fR|\fB-E\fR \fIcomp_end1\fR>
+[\fISTRIPE_OPTIONS\fR]
+ <\fB--component-end\fR|\fB-E\fR \fIcomp_end2\fR>
+[\fISTRIPE_OPTIONS\fR]
+ ... \fIfilename\fR
+.br
+.B lfs mkdir \fR[\fB-c\fR|\fB--count \fR<\fIstripe_count\fR>]
+[\fB-i\fR|\fB--index \fR<\fImdt_idx\fR>]
+ [\fB-h\fR|\fB--hash-type \fR<\fIhash_name\fR>]
+[\fB-m\fR|\fB--mode \fR<\fImode\fR>]
+ [\fB-D\fR|\fB--default\fR] \fIdirectory\fR
+.br
+.B lfs osts \fR[<\fIpath\fR>]
+.br
+.B lfs mdts \fR[<\fIpath\fR>]
.br
-.B path2fid <path> ...
+.B lfs path2fid \fR[\fB--parents\fR] <\fIpath\fR> ...
.br
-.B lfs pool_list <filesystem>[.<pool>] | <pathname>
+.B lfs pool_list \fR<\fIfilesystem\fR>[\fB.\fR<\fIpool\fR>] | <\fIpathname\fR>
.br
-.B lfs quota [-q] [-v] [-o obd_uuid|-I ost_idx|-i mdt_idx] [-u <uname>| -u <uid>|-g <gname>| -g <gid>] <filesystem>
+.B lfs quota \fR[\fB-qv\fR] [\fB-o \fIobd_uuid\fR|\fB-I \fIost_idx\fR|\fB-i \fImdt_idx\fR]
+ [\fB-u <\fIuname\fR|\fIuid\fR>|\fB-g <\fIgname\fR|\fIgid\fR>]
+[\fB-p <\fIprojid\fR>] <\fIfilesystem\fR>
.br
-.B lfs quota -t <-u|-g> <filesystem>
+.B lfs quota -t \fR<\fB-u\fR|\fB-g\fR|\fB-p\fR> <\fIfilesystem\fR>
.br
-.B lfs quotacheck [-ug] <filesystem>
+.B lfs quotacheck \fR[\fB-ug\fR] <\fIfilesystem\fR>
.br
-.B lfs quotaon [-ugf] <filesystem>
+.B lfs quota \fR<\fB-U\fR|\fB-G\fR|\fB-P\fR> <\fIfilesystem\fR>
.br
-.B lfs quotaoff [-ug] <filesystem>
+.B lfs quotaon \fR[\fB-ugf\fR] <\fIfilesystem\fR>
.br
-.B lfs setquota <-u|--user|-g|--group> <uname|uid|gname|gid>
- \fB[--block-softlimit <block-softlimit>]
- \fB[--block-hardlimit <block-hardlimit>]
- \fB[--inode-softlimit <inode-softlimit>]
- \fB[--inode-hardlimit <inode-hardlimit>]
- \fB<filesystem>\fR
+.B lfs quotaoff \fR[\fB-ug\fR] <\fIfilesystem\fR>
.br
-.B lfs setquota <-u|--user|-g|--group> <uname|uid|gname|gid>
- \fB[-b <block-softlimit>] [-B <block-hardlimit>]
- \fB[-i <inode-softlimit>] [-I <inode-hardlimit>]
- \fB<filesystem>\fR
+.B lfs setstripe \fR[\fB--stripe-size\fR|\fB-S <\fIsize\fR>] [\fB--stripe-count\fR|-c <\fIcount\fR>]
+ [\fB--stripe-index\fR|\fB-i <\fIstart_ost_index\fR>] [\fB--pool\fR|\fB-p \fR<\fIpoolname\fR>]
+ [\fB--ost-list\fR|\fB-o <\fIost_indices\fR>] <\fIdirectory\fR|\fIfilename\fR>
.br
-.B lfs setquota -t <-u|-g>
- \fB[--block-grace <block-grace>]
- \fB[--inode-grace <inode-grace>]
- \fB<filesystem>\fR
+.B lfs setstripe -d \fR<\fIdir\fR>
.br
-.B lfs setquota -t <-u|-g>
- \fB[-b <block-grace>] [-i <inode-grace>]
- \fB<filesystem>\fR
+.B lfs setstripe --component-end\fR|\fB-E <\fIend1> [\fISTRIPE_OPTIONS\fR]
+ [\fB--component-end\fR|\fB-E \fR<\fIend2\fR> [\fISTRIPE_OPTIONS\fR]]
+ ... <\fIfilename>\fR
.br
+.B lfs setstripe --component-add \fB-E\fR <\fIend1> [\fISTRIPE_OPTIONS]
+ [\fB--component-end\fR|\fB-E \fR<\fIend2\fR> [\fISTRIPE_OPTIONS\fR]]
+ ... <\fIfilename\fR>
.br
-.B lfs swap_layouts <filename1> <filename2>
+.B lfs setstripe --component-del \fR{\fB--component-id\fR|\fB-I \fR<\fIid\fR> |
+ \fB--component-flags \fR<\fIflags\fR>}
+<\fIfilename\fR>
.br
-.B lfs data_version [-n] \fB<filename>\fR
+.B lfs setstripe --yaml=\fR<\fIyaml_template_file\fR> <\fIfilename\fR>
+.br
+.B lfs --version
+.br
+.B lfs --list-commands
.br
.B lfs help
.SH DESCRIPTION
.B lfs
-can be used to create a new file with a specific striping pattern, determine the default striping pattern, gather the extended attributes (object numbers and location) for a specific file. It can be invoked interactively without any arguments or in a non-interactive mode with one of the arguements supported.
-.SH OPTIONS
-The various options supported by lctl are listed and explained below:
+can be used to create a new file with a specific striping pattern, determine
+the default striping pattern, gather the extended attributes (object numbers
+and location) for a specific file. It can be invoked interactively without any
+arguments or in a non-interactive mode with one of the arguments supported.
+.SH COMMANDS
+A number of sub-commands supported by lfs are listed below. Other commands
+are described in separate man pages of the form
+.BI lfs- command
+as listed in the
+.B SEE ALSO
+section at the end.
.TP
.B changelog
Show the metadata changes on an MDT. Start and end points are optional. The --follow option will block on new changes; this option is only valid when run direclty on the MDT node.
free up disk space. An <endrec> of 0 indicates the current last record.
Changelog consumers must be registered on the MDT node using \fBlctl\fR.
.TP
-.B check
-Display the status of MDS or OSTs (as specified in the command) or all the servers (MDS and OSTs)
-.TP
-.B df [-i] [-h] [--lazy] [--pool|-p <fsname>[.<pool>] [path]
-Report filesystem disk space usage or inodes usage (with \fB-i\fR) of each
-MDT/OST, or a subset of OSTs if a pool is specified with \fB-p\fR. By default
-print the usage of all mounted Lustre filesystems, otherwise if \fBpath\fR is
-specified print only the usage of that filesystem. If \fB-h\fR is given, the
-output is printed in \fIh\fRuman readable format, using SI base-2 suffixes
-for \fBM\fRega-, \fBG\fRiga-, \fBT\fRera-, \fBP\fReta-, or \fBE\fRxabytes.
-The \fB--lazy\fR/\fB-l\fR option skips any OST that is currently disconnected
-from the client. This avoids blocking the \fBdf\fR output if an OST is down,
-and only returns the space on the OSTs that can currently be accessed.
-.TP
-.B find
-To search the directory tree rooted at the given dir/file name for the files that match the given parameters: \fB--atime\fR (file was last accessed N*24 hours ago), \fB--ctime\fR (file's status was last changed N*24 hours ago), \fB--mtime\fR (file's data was last modified N*24 hours ago), \fB--obd\fR (file has an object on a specific OST or OSTs), \fB--size\fR (file has size in bytes, or \fBk\fRilo-, \fBM\fRega-, \fBG\fRiga-, \fBT\fRera-, \fBP\fReta-, or \fBE\fRxabytes if a suffix is given), \fB--type\fR (file has the type: \fBb\fRlock, \fBc\fRharacter, \fBd\fRirectory, \fBp\fRipe, \fBf\fRile, sym\fBl\fRink, \fBs\fRocket, or \fBD\fRoor (Solaris)), \fB--uid\fR (file has specific numeric user ID), \fB--user\fR (file owned by specific user, numeric user ID allowed), \fB--gid\fR (file has specific group ID), \fB--group\fR (file belongs to specific group, numeric group ID allowed), \fB--layout\fR (file has a raid0 layout or is released). The option \fB--maxdepth\fR limits find to decend at most N levels of directory tree. The options \fB--print\fR and \fB--print0\fR print full file name, followed by a newline or NUL character correspondingly. Using \fB!\fR before an option negates its meaning (\fIfiles NOT matching the parameter\fR). Using \fB+\fR before a numeric value means \fIfiles with the parameter OR MORE\fR, while \fB-\fR before a numeric value means \fIfiles with the parameter OR LESS\fR.
-.TP
-.B getname [-h]|[path ...]
-Report all the Lustre mount points and the corresponding Lustre filesystem
-instance. If one or more \fBpath\fR entries are provided, then only the
-Lustre instance for these mount points is returned. If the path given is not on
-a Lustre instance 'No such device' is reported.
-.TP
-.B osts
+.B check <mgts|mdts|osts|all>
+Display the status of the MGTs, MDTs or OSTs (as specified in the command) or
+all the servers (MGTs, MDTs and OSTs).
+.TP
+.B data_version [-nrw] <filename>
+Display the current version of file data. If -n is specified, the data version
+is read without taking a lock. As a consequence, the data version could be
+outdated if there are dirty caches on filesystem clients, but this option will
+not force data flushes and has less of an impact on the filesystem. If -r is
+specified, the data version is read after dirty pages on clients are flushed. If
+-w is specified, the data version is read after all caching pages on clients are
+flushed.
+
+Even with -r or -w, race conditions are possible and the data version should be
+checked before and after an operation to be confident the data did not change
+during it.
+
+The data version is the sum of the last committed transaction numbers of all
+data objects of a file. It is used by HSM policy engines for verifying that file
+data has not been changed during an archive operation or before a release
+operation, and by OST migration, primarily for verifying that file data has not
+been changed during a data copy, when done in non-blocking mode.
+.TP
+.B osts
.RB [ path ]
List all the OSTs for all mounted filesystems. If a \fBpath\fR is provided
that is located on a lustre mounted file system then only the OSTs belonging
to that filesystem are displayed.
.TP
-.B getstripe [--obd|-O <uuid>] [--quiet|-q] [--verbose|-v]
- \fB[--count | -c ] [--index | -i | --offset | -o ]
- \fB[--pool | -p ] [--size | -s ] [--directory | -d ]
- \fB[--layout | -L]
- \fB[--recursive | -r ] [--raw | -R ] <dirname|filename>\fR
-.br
-List the striping information for a given filename or directory tree.
-By default the stripe count, size, and offset will be returned. If you
-only want specific striping information then the options of
-.BR --count ,
-.BR --size ,
-.BR --index ,
-.BR --offset ,
-.BR --layout ,
-or
-.B --pool
-can be used to return only the specific fields.
-.br
-If the
-.B --raw
-option is specified, the stripe information is printed without substituting the
-filesystem's default values for unspecified fields. If the striping EA is not
-set, 0, 0, and -1 will be printed for the stripe count, size, and offset
-respectively.
-In the case where you only want details about the files' object id
-information then the
-.B --quiet
-option is used. Additional information available about striping can be
-displayed with
-.BR --verbose .
-The default behavior when a directory is specified is to list the striping
-information for all files within the specified directory (like
-.RB ' "ls -l" ') .
-This can be expanded with
-.B --recursive
-which will recurse into all subdirectories.
-If you wish to get striping information for only the specified directory, then
-.B --directory
-can be used to limit the information, like
-.RB ' "ls -d" ').
-You can limit the returned files to those with objects on a specific OST with
-.BR --obd .
-.TP
-.B setstripe [--stripe-count|-c stripe_count] [--stripe-size|-S stripe_size]
- \fB[--stripe-index|-i start_ost_index] [--pool <poolname>]
- \fB<dirname|filename>\fR
-.br
-To create a new file, or set the directory default, with the specified striping parameters. The
-.I stripe_count
-is the number of OSTs to stripe a file over. A
-.I stripe_count
-of 0 means to use the filesystem-wide default stripe count (default 1), and a
-.I stripe_count
-of -1 means to stripe over all available OSTs. The
-.I stripe_size
-is the number of bytes to store on each OST before moving to the next OST. A
-.I stripe_size
-of 0 means to use the filesystem-wide default stripe_size (default 1MB). The
-.I start_ost_index
-is the OST index (starting at 0) on which to start striping for this file. A
-.I start_ost_index
-of -1 allows the MDS to choose the starting index and it is strongly recommended, as this allows space and load balancing to be done by the MDS as needed. The
-.I poolname
-is the name of a predefined pool of OSTs (see
-.B lctl
-) that will be used for striping. The
-.IR stripe_count ,
-.IR stripe_size ,
-and
-.I start_ost_index
-will be used as well; the
-.I start_ost_index
-must be part of the pool or an error will be returned.
-.TP
-.B setstripe -d
-Delete the default striping on the specified directory.
-.TP
.B fid2path [--link <linkno>] <fsname|rootpath> <fid> ...
Print out the pathname(s) for the specified \fIfid\fR(s) from the filesystem
mounted at \fBrootpath\fR or named \fBfsname\fR. If a file has multiple
at 0, in no particular order). If multiple fids are specified, but only a
single pathname is needed for each file, use \fB--link 0\fR.
.TP
-.B path2fid <path> ...
+.B path2fid
[--parents] <path> ...
Print out the FIDs for the specified \fBpath(s)\fR. If multiple pathnames
are given, then they will be printed one per line with the path as prefix.
+The \fB--parents\fR switch makes it output the parent FID and name(s) of the
+given entries. If an entry has multiple links, these are displayed on a single
+line, tab-separated.
.TP
.B pool_list
.RI { filesystem }[ .poolname "] | {" pathname }
-List the pools in
+List the pools in
.I filesystem
or
.IR pathname ,
or the OSTs in
.IR filesystem.pool .
.TP
-.B quota [-q] [-v] [-o obd_uuid|-i mdt_idx|-I ost_idx] [-u|-g <uname>|<uid>|<gname>|<gid>] <filesystem>
-To display disk usage and limits, either for the full filesystem, or for objects on a specific obd. A user or group name or an ID can be specified. If both user and group are omitted quotas for current uid/gid are shown. -v provides more verbose (with per-obd statistics) output. -q disables printing of additional descriptions (including column titles).
+.B quota [-q] [-v] [-o obd_uuid|-i mdt_idx|-I ost_idx] [-u|-g|-p <uname>|<uid>|<gname>|<gid>|<projid>] <filesystem>
+To display disk usage and limits, either for the full filesystem, or for objects on a specific obd. A user or group name or an ID can be specified. If user group and project are omitted quotas for current uid/gid/projid are shown. -v provides more verbose (with per-obd statistics) output. -q disables printing of additional descriptions (including column titles).
.TP
-.B quota -t <-u|-g> <filesystem>
-To display block and inode grace times for user (-u) or group (-g) quotas
+.B quota -t <-u|-g|-p> <filesystem>
+To display block and inode grace times for user (-u) or group (-g) or project (-p) quotas
.TP
.B quotacheck [-ugf] <filesystem> (deprecated as of 2.4.0)
To scan the specified filesystem for disk usage, and create or update quota files. Options specify quota for users (-u) groups (-g) and force (-f). Not useful anymore with servers >= 2.4.0 since space accounting is always turned on.
.B quotaoff [-ugf] <filesystem> (deprecated as of 2.4.0)
To turn filesystem quotas off. Options specify quota for users (-u) groups (-g) and force (-f). Not used anymore in lustre 2.4.0 where quota enforcement can be turned off (for inode or block) by running the following command on the MGS: lctl conf_param ${FSNAME}.quota.<ost|mdt>=""
.TP
-.B setquota <-u|-g> <uname>|<uid>|<gname>|<gid> [--block-softlimit <block-softlimit>] [--block-hardlimit <block-hardlimit>] [--inode-softlimit <inode-softlimit>] [--inode-hardlimit <inode-hardlimit>] <filesystem>
-To set filesystem quotas for users or groups. Limits can be specified with -b, -k, -m, -g, -t, -p suffixes which specify units of 1, 2^10, 2^20, 2^30, 2^40 and 2^50 accordingly. Block limits unit is kilobyte (1024) by default and block limits are always kilobyte-grained (even if specified in bytes), see EXAMPLES
-.TP
-.B setquota -t [-u|-g] [--block-grace <block-grace>] [--inode-grace <inode-grace>] <filesystem>
-To set filesystem quota grace times for users or groups. Grace time is specified in "XXwXXdXXhXXmXXs" format or as an integer seconds value, see EXAMPLES
-.TP
.B swap_layouts <filename1> <filename2>
Swap the data (layout and OST objects) of two regular files. The
two files have to be in the same filesystem, owned by the same user,
Swapping the layout of two directories is not permitted.
.TP
-.B data_version [-n] <filename>
-Display current version of file data. If -n is specified, data version is read
-without taking lock. As a consequence, data version could be outdated if there
-is dirty caches on filesystem clients, but this will not force data flushes and
-has less impact on filesystem.
-
-Even without -n, race conditions are possible and data version should be
-checked before and after an operation to be confident the data did not change
-during it.
+.B mkdir
+lfs mkdir is documented in the man page: lfs-mkdir(1). NOTE:
+.B lfs setdirstripe
+is an alias of the command
+.B lfs mkdir
.TP
-.B mkdir <--index|-i mdt_index> <dir>
-Allocate a new directory on a specified MDT.
-
-The "lfs mkdir" command is only executable by root unless
-"mdt.*.enable_remote_dir_gid" is set via "lctl set_param" to be either a
-non-zero GID to limit it to a single group (e.g. "operator" or "admin"),
-or "-1" to allow any group to create remote directories.
-
-The root of the file system is on MDT0000, and directories and files inherit the
-MDT of their parent directory unless a different MDT is specified with this
-command.
-
-By default, only directories on MDT0000 can contain directories that are not on
-the same MDT. However, if "mdt.*.enable_remote_dir" is set non-zero on an MDT
-then it will allow creating remote directories that have parents other than
-MDT0000. This is restricted to avoid creating directory trees that have
-intermediate path components on a series different MDTs and become unavailable
-if any of the intermediate MDTs are offline.
-.TP
-.B help
-Provides brief help on the various arguments
+.B mv
+lfs mv is deprecated, use lfs
+.B migrate
+instead.
.TP
-.B exit/quit
-Quit the interactive lfs session
-.SH EXAMPLES
+.B migrate
+See lfs-migrate(1).
.TP
-.B $ lfs setstripe -s 128k -c 2 /mnt/lustre/file1
-This creates a file striped on two OSTs with 128kB on each stripe.
+.B setstripe
+See lfs-setstripe(1).
.TP
-.B $ lfs setstripe -d /mnt/lustre/dir
-This deletes a default stripe pattern on dir. New files will use the default striping pattern created therein.
+.B --version
+Output the build version of the lfs utility. Use "lctl lustre_build_version" to get the version of the Lustre kernel modules
.TP
-.B $ lfs getstripe -v /mnt/lustre/file1
-Lists the detailed object allocation of a given file
+.B --list-commands
+Output a list of the commands supported by the lfs utility
.TP
-.B $ lfs find /mnt/lustre
-Efficiently lists all files in a given directory and its subdirectories
+.B help
+Provides brief help on the various arguments
.TP
-.B $ lfs find /mnt/lustre -mtime +30 -type f -print
-Recursively list all regular files in given directory more than 30 days old
+.B exit/quit
+Quit the interactive lfs session
+.SH EXAMPLES
.TP
-.B $ lfs find --obd OST2-UUID /mnt/lustre/
-Recursively list all files in a given directory that have objects on OST2-UUID.
-.tP
-.B $ lfs check servers
-Check the status of all servers (MDT, OST)
+.B $ lfs check all
+Check the status of all servers (MGT, MDT, OST)
.TP
.B $ lfs osts
List all the OSTs
.TP
-.B $ lfs df -h
-Lists space usage per OST and MDT in human readable format.
-.TP
-.B $ lfs df -i
-Lists inode usage per OST and MDT
-.TP
-.B $ lfs df --pool <filesystem>[.<pool>] | <pathname>
-List space or inode usage for a specific OST pool
+.B $ lfs mdts
+List all the MDTs
.TP
.B $ lfs quota -u bob /mnt/lustre
List quotas of user `bob'
.TP
+.B $ lfs quota -U /mnt/lustre
+List user quotas of system default setting
+.TP
.B $ lfs quota -t -u /mnt/lustre
Show grace times for user quotas on /mnt/lustre
.TP
.TP
.B $ lfs quotaoff -ug /mnt/lustre
Turn quotas of user and group off
-.TP
-.B $ lfs setquota -u bob --block-softlimit 2000000 --block-hardlimit 1000000 /mnt/lustre
-Set quotas of user `bob': 1GB block quota hardlimit and 2 GB block quota softlimit
-.TP
-.B $ lfs setquota -t -u --block-grace 1000 --inode-grace 1w4d /mnt/lustre
-Set grace times for user quotas: 1000 seconds for block quotas, 1 week and 4 days for inode quotas
-.TP
-.SH BUGS
-The \fBlfs find\fR command isn't as comprehensive as \fBfind\fR(1).
+.SH NOTES
+The usage of \fBlfs find\fR, \fBlfs getstripe\fR, \fBlfs hsm_*\fR,
+\fBlfs setstripe\fR, \fBlfs migrate\fR, \fBlfs getdirstripe\fR,
+\fBlfs setdirstripe\fR, \fBlfs mkdir\fR, and \fBlfs project\fR are explained
+in separate man pages.
.SH AUTHOR
The lfs command is part of the Lustre filesystem.
.SH SEE ALSO
-.BR lfs-hsm (1),
-.BR lfs-setdirstripe (1),
+.BR lctl (8),
+.BR lfs-df (1),
+.BR lfs-find (1),
.BR lfs-getdirstripe (1),
+.BR lfs-getname (1),
+.BR lfs-getstripe (1),
+.BR lfs-hsm (1),
.BR lfs-mkdir (1),
-.BR lctl (8),
+.BR lfs-migrate (1),
+.BR lfs_migrate (1),
+.BR lfs-project (1),
+.BR lfs-setdirstripe (1),
+.BR lfs-setquota (1),
+.BR lfs-setstripe (1),
.BR lustre (7)
git://git.whamcloud.com / fs / lustre-release.git / blobdiff