.br
.B lfs check <mds|osts|servers>
.br
+.B lfs data_version [-n] \fB<filename>\fR
+.br
.B lfs df [-i] [-h] [--lazy] [--pool|-p <fsname>[.<pool>] [path]
.br
.B lfs fid2path [--link <linkno>] <fsname|rootpath> <fid> ...
.br
.B lfs getname [-h]|[path ...]
.br
-.B lfs getstripe [--obd|-O <uuid>] [--quiet|-q] [--verbose|-v]
+.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[--layout|-L]
\fB[--pool|-p] [--recursive|-r] [--raw|-R] <dirname|filename> ...\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 \fB-m <mdt_index>\fR
+.IR directory
.br
-.B lfs setstripe -d <dir>
+.B lfs migrate [\fB-c | --stripe-count <stripe_count>\fR]
+ [\fB-i | --stripe-index <start_ost_idx>\fR]
+ [\fB-S | --stripe-size <stripe_size>\fR]
+ [\fB-p | --pool <pool_name>\fR]
+ [\fB-o | --ost-list <ost_indices>\fR]
+ [\fB-b | --block\fR]
+ [\fB-n | --non-block\fR]
+.IR file|directory
+.br
+.B lfs mkdir [\fB-c | --count <stripe_count>\fR]
+ [\fB-i | --index <mdt_idx>\fR]
+ [\fB-h | --hash-type <hash_name>\fR]
+ [\fB-m | --mode <mode>\fR]
+ [\fB-D | --default\fR]
+.IR directory
.br
.B lfs osts
.RB [ path ]
.br
+.B lfs mdts
+.RB [ path ]
+.br
.B lfs path2fid [--parents] <path> ...
.br
.B lfs pool_list <filesystem>[.<pool>] | <pathname>
\fB<filesystem>\fR
.br
.B lfs setquota -t <-u|-g>
- \fB[--block-grace <block-grace>]
- \fB[--inode-grace <inode-grace>]
+ \fB[--block-grace <block-grace>]\fR
+ \fB[--inode-grace <inode-grace>]\fR
\fB<filesystem>\fR
.br
.B lfs setquota -t <-u|-g>
- \fB[-b <block-grace>] [-i <inode-grace>]
+ \fB[-b <block-grace>] [-i <inode-grace>]\fR
\fB<filesystem>\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[--ost-list|-o <ost_indices>] <directory|filename>\fR
.br
-.B lfs swap_layouts <filename1> <filename2>
-.br
-.B lfs data_version [-n] \fB<filename>\fR
+.B lfs setstripe -d <dir>
.br
.B lfs --version
.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.
+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 OPTIONS
The various options supported by lfs are listed and explained below:
.TP
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
+.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]
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
+.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 ...]
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 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]
+.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[--layout | -L]
\fB[--recursive | -r ] [--raw | -R ] <dirname|filename>\fR
.br
List the striping information for a given filename or directory tree.
.BR --offset ,
.BR --layout ,
or
-.B --pool
+.B --pool
can be used to return only the specific fields.
.br
If the
.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
+ \fB[--ost-index|-o <ost_indices>] <dirname|filename>\fR
.br
-To create a new file, or set the directory default, with the specified striping parameters. The
+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
.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
+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
+.B -o
+option is used to specify the exact stripe layout on the file system.
+.I ost_indices
+is a list of OSTs referenced by their indices, which are specified in decimal
+or hex form and can be obtained using the
+.B lfs osts
+command. The list format consists of individual OST indices and index ranges
+separated by commas, e.g. 1,2-4,7. The
+.B -o
+option may be specified multiple times to stripe across the union of all listed
+OSTs. If the
+.B -c
+option is combined with
+.B -o
+the
+.I stripe_count
+must agree with the number of OSTs in
+.IR ost_indices .
+If the
+.B -i
+option is combined with
+.B -o
+the
+.I start_ost_index
+must be in the OST list, and it will be used as the index on which to start
+striping the file. Otherwise the striping will occur in the order specified in
+.IR ost_indices .
+The
.I poolname
-is the name of a predefined pool of OSTs (see
-.B lctl
-) that will be used for striping. The
+is the name of a predefined pool of OSTs (see
+.BR lctl (8))
+that will be used for striping. The
.IR stripe_count ,
.IR stripe_size ,
and
.I start_ost_index
-will be used as well; the
+will be used as well; the
.I start_ost_index
-must be part of the pool or an error will be returned.
+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 pool_list
.RI { filesystem }[ .poolname "] | {" pathname }
-List the pools in
+List the pools in
.I filesystem
or
.IR pathname ,
checked before and after an operation to be confident the data did not change
during it.
.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.
+.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 mv
+lfs mv is deprecated, use lfs
+.B migrate
+instead.
+.TP
+.B migrate
+See lfs-migrate(1).
.TP
.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 help
+.B help
Provides brief help on the various arguments
.TP
-.B exit/quit
+.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
+.B $ lfs check servers
Check the status of all servers (MDT, OST)
.TP
.B $ lfs osts
List all the OSTs
.TP
-.B $ lfs df -h
+.B $ lfs mdts
+List all the MDTs
+.TP
+.B $ lfs df -h
Lists space usage per OST and MDT in human readable format.
.TP
-.B $ lfs df -i
+.B $ lfs df -i
Lists inode usage per OST and MDT
.TP
.B $ lfs df --pool <filesystem>[.<pool>] | <pathname>
.BR lfs-setdirstripe (1),
.BR lfs-getdirstripe (1),
.BR lfs-mkdir (1),
+.BR lfs_migrate (1),
+.BR lfs-migrate (1),
.BR lctl (8),
.BR lustre (7)
git://git.whamcloud.com / fs / lustre-release.git / blobdiff