.TH lfs 1 "2009 Jan 29" Lustre "user utilities"
.SH NAME
-lfs \- Lustre utility to create a file with specific striping pattern, find the striping pattern of exiting files
+lfs \- Lustre utility to create a file with specific striping pattern, find the striping pattern of existing files
.SH SYNOPSIS
.br
.B lfs
.br
.B lfs find [[!] --atime|-A [-+]N] [[!] --mtime|-M [-+]N]
\fB[[!] --ctime|-C [-+]N] [--maxdepth|-D N] [--name|-n pattern]
- \fB[--print|-p] \fB[--print0|-P] [--obd|-O <uuid[s]>]
+ \fB[--print|-p] \fB[--print0|-P] [[!] --obd|-O <uuid[s]>]
\fB[[!] --size|-S [-+]N[kMGTPE]] [--type |-t {bcdflpsD}]
- \fB[[!] --gid|-g N] [[!] --group|-G <name>]
- \fB[[!] --uid|-u N] [[!] --user|-U <name>]
+ \fB[[!] --gid|-g|--group|-G <gname>|<gid>]
+ \fB[[!] --uid|-u|--user|-U <uname>|<uid>]
\fB<dirname|filename>\fR
.br
.B lfs osts
.br
.B lfs getstripe [--obd|-O <uuid>] [--quiet|-q] [--verbose|-v]
- \fB[--recursive|-r] <dirname|filename>\fR
+ \fB[--count | -c ] [--index | -i | --offset | -o ]
+ \fB[--size | -s ] [--pool | -p ] [--directory | -d ]
+ \fB[--recursive|-r] <dirname|filename> ...\fR
.br
.B lfs setstripe [--size|-s stripe-size] [--count|-c stripe-cnt]
- \fB[--
offset|-o start-ost] [--pool|-p <pool>]
- \fB<dir|filename>\fR
+ \fB[--
index|-i|--offset|-o start_ost_index ] [--pool|-p <pool>]
+ \fB<dirname|filename>\fR
.br
.B lfs setstripe -d <dir>
.br
.B lfs poollist <filesystem>[.<pool>] | <pathname>
.br
-.B lfs quota [-v] [-o obd_uuid|-I ost_idx|-i mdt_idx] [-u <username>|-g <groupname>] <filesystem>
+.B lfs quota [-q] [-v] [-o obd_uuid|-I ost_idx|-i mdt_idx] [-u <uname>| -u <uid>|-g <gname>| -g <gid>] <filesystem>
.br
.B lfs quota -t <-u|-g> <filesystem>
.br
.br
.B lfs quotainv [-ug] [-f] <filesystem>
.br
-.B lfs setquota <-u|--user|-g|--group> <username|groupname>
+.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
.br
-.B lfs setquota <-u|--user|-g|--group> <username|groupname>
+.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
\fB[--inode-grace <inode-grace>]
\fB<filesystem>\fR
.br
-.B lfs setquota -t [-u|-g]
+.B lfs setquota -t <-u|-g>
\fB[-b <block-grace>] [-i <inode-grace>]
\fB<filesystem>\fR
.br
.B check
Display the status of MDS or OSTs (as specified in the command) or all the servers (MDS and OSTs)
.TP
-.B df
-Report filesystem disk space usage or inodes usage of each MDT/OST. Can limit
-the scope to a specific OST pool
+.B df [-i] [-h] [--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.
.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). 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.
.B osts
List all the OSTs for the filesystem
.TP
-.B getstripe
-To list the striping info for a given filename or files in a directory, optionally recursively, for all files in a directory tree: \fB--quiet\fR (don't print object IDs), \fB--verbose\fR (print striping parameters), \fB--recursive\fR (recurse into subdirectories).
+.B getstripe [--obd|-O <uuid>] [--quiet|-q] [--verbose|-v]
+ \fB[--count | -c ] [--index | -i | --offset | -o ]
+ \fB[--pool | -p ] [--size | -s ] [--directory | -d ]
+ \fB[--recursive|-r] <dirname|filename>\fR
+.br
+To list the striping information for a given filename or directory. By default the stripe count, size, and offset will be returned. If you only want specific striping information then the options of \fB--count\fR,\fB--size\fR,\fB--index\fR or \fB--offset\fR plus various combinations of these options can be used to retrieve only what you want. What pools a file belong to can also be obtained with \fB--pool\fR. In the case where you only want details about the files object id information then the \fB--quiet\fR option is used. Additional information available about striping can be displayed with \fB--verbose\fR. The default behavior of lfs getstripe used to retrieve data about a directory is to list all the contents of that directory. If you wish to inquire only about that directory then \fB--directory\fR,can be used to list directory entries instead of its contents in the same manner as ls -d. This can be expanded with \fB--recursive\fR which will recurse into all subdirectories. You can filter the search to return only files that has a object on a specific OST with \fB--obd\fR.
.TP
-.B setstripe [--size stripe-size] [--count stripe-cnt]
- \fB[--offset start-ost] [--pool <pool>]\fR
+.B setstripe [--count|-c stripe_cnt] [--size|-s stripe_size]
+ \fB[--index|-i|--offset|-o start_ost_index] [--pool <pool>]
+ \fB<dirname|filename>\fR
.br
To create a new file, or set the directory default, with the specified striping parameters. The
-.I stripe-count
+.I stripe_count
is the number of OSTs to stripe a file over. A
-.I stripe-count
+.I stripe_count
of 0 means to use the filesystem-wide default stripe count (default 1), and a
-.I stripe-count
+.I stripe_count
of -1 means to stripe over all available OSTs. The
-.I stripe-size
+.I stripe_size
is the number of bytes to store on each OST before moving to the next OST. A
-.I stripe-size
+.I stripe_size
of 0 means to use the filesystem-wide default stripe size (default 1MB). The
-.I start-ost
-is the OST index (base 10, starting at 0) on which to start striping for this file. A
-.I start-ost
+.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 pool
is the name of a predefined pool of OSTs (see
-.I lctl
+.B lctl
) that will be used for striping. The
-.I stripe-count, stripe-size, start-ost
+.I stripe_count, stripe_size, and start_ost_index
will be used as well; the
-.I start-ost
+.I start_ost_index
must be part of the pool or an error will be returned.
.TP
.B setstripe -d
.B poollist <filesystem>[.<pool>] | <pathname>
List the pools in \fBfilesystem\fR or \fBpathname\fR, or the OSTs in \fBfilesystem.pool\fR
.TP
-.B quota [-v] [-o obd_uuid|-i mdt_idx|-I ost_idx] [-u|-g] <username|groupname> <filesystem>
-To display disk usage and limits, either for the full filesystem, or for objects on a specific obd. A user or group name 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.
+.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).
.TP
-.B quota -t [-u|-g] <filesystem>
+.B quota -t <-u|-g> <filesystem>
To display block and inode grace times for user (-u) or group (-g) quotas
.TP
.B quotachown
.B quotainv [-ug] [-f] <filesystem>
Clear quota files (administrative quota files if used without -f, operational quota files otherwise), all of their quota entries, for (-u) users or (-g) groups; after quotainv one must use quotacheck before using quotas. DO NOT USE THIS COMMAND UNLESS YOU REALLY KNOW WHAT IT DOES. IT IS MAINLY FOR INTERNAL PURPOSES.
.TP
-.B setquota [-u|-g] <name> [--block-softlimit <block-softlimit>] [--block-hardlimit <block-hardlimit>] [--inode-softlimit <inode-softlimit>] [--inode-hardlimit <inode-hardlimit>] <filesystem>
+.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>
.B $ lfs df -i
Lists inode usage per OST and MDT
.TP
-.B lfs df --pool <filesystem>[.<pool>] | <pathname>
+.B
$ lfs df --pool <filesystem>[.<pool>] | <pathname>
List space or inode usage for a specific OST pool
.TP
.B $ lfs quota -u bob /mnt/lustre
git://git.whamcloud.com / fs / lustre-release.git / blobdiff