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\layout Section

LFS
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NAME
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lfs Lustre utility to create a file with specific striping pattern
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SYNOPSIS
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\series bold 
lfs
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\series bold 
lfs\SpecialChar ~
find [--obd <uuid>] [--quiet | --verbose] [--recursive] <dir|file>
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\series bold 
lfs\SpecialChar ~
getstripe <file_name> 
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\series bold 
lfs\SpecialChar ~
setstripe <filename> <stripe_size> <start_ost> <stripe_cnt>
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\series bold 
lfs\SpecialChar ~
check <mds| osts| servers>
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DESCRIPTION
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This utility 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 listed and explained below:
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setstripe
\series default 
 To create a new file with a specific striping pattern
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\labelwidthstring 00.00.0000


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find
\series default 
 To list the extended attributes for a given filename or files in a directory
 or recursively for all files in a directory tree.
 It can also be used to list the files that have objects on a specific OST.
 
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\labelwidthstring 00.00.0000


\series bold 
getstripe
\series default 
 To list the striping pattern for given filename
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\labelwidthstring 00.00.0000


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check 
\series default 
Display the status of MDS or OSTs (as specified in the command) or all the
 servers (MDS and OSTs)
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\labelwidthstring 00.00.0000


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osts
\series default 
 List all the OSTs for the filesystem
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\labelwidthstring 00.00.0000


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help
\series default 
 Provides brief help on the various arguments
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exit/quit
\series default 
 Quit the interactive lfs session
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EXAMPLES
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Creating\SpecialChar ~
a\SpecialChar ~
file\SpecialChar ~
striped\SpecialChar ~
on\SpecialChar ~
one\SpecialChar ~
OST
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   $lfs setstripe /mnt/lustre/file1 131072 0 1
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Listing
\series bold 
\SpecialChar ~

\series default 
the
\series bold 
\SpecialChar ~

\series default 
extended
\series bold 
\SpecialChar ~

\series default 
attributes
\series bold 
\SpecialChar ~

\series default 
of
\series bold 
\SpecialChar ~

\series default 
a
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\SpecialChar ~

\series default 
given
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\SpecialChar ~

\series default 
file
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   $lfs find /mnt/lustre/foo1
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   OBDS:    
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      0: OST_localhost_UUID 
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   /mnt/lustre/foo1         
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   obdidx           objid          objid            group              
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   0                 1            0x1                0 
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Listing\SpecialChar ~
the\SpecialChar ~
extended\SpecialChar ~
attributes\SpecialChar ~
of\SpecialChar ~
all\SpecialChar ~
files\SpecialChar ~
in\SpecialChar ~
a\SpecialChar ~
given\SpecialChar ~
directory
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   $lfs find /mnt/lustre/
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Recursively\SpecialChar ~
list\SpecialChar ~
the\SpecialChar ~
extended\SpecialChar ~
attributes\SpecialChar ~
of\SpecialChar ~
all\SpecialChar ~
files\SpecialChar ~
in\SpecialChar ~
a\SpecialChar ~
given\SpecialChar ~
directory\SpecialChar ~
tree
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   $lfs find -r /mnt/lustre/
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List\SpecialChar ~
all\SpecialChar ~
the\SpecialChar ~
files\SpecialChar ~
that\SpecialChar ~
have\SpecialChar ~
objects\SpecialChar ~
on\SpecialChar ~
a\SpecialChar ~
specific\SpecialChar ~
OST
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   $lfs find -r --obd OST2_UUID /mnt/lustre/
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Check\SpecialChar ~
the\SpecialChar ~
status\SpecialChar ~
of\SpecialChar ~
all\SpecialChar ~
servers(mds,\SpecialChar ~
osts)
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   $lfs check servers 
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   OSC_localhost.localdomain_OST_localhost_mds1 active.
 
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   OSC_localhost.localdomain_OST_localhost_MNT_localhost active.
 
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   MDC_localhost.localdomain_mds1_MNT_localhost active.
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   $
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List\SpecialChar ~
all\SpecialChar ~
the\SpecialChar ~
OSTs
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   $lfs osts 
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   OBDS:    
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   0: OST_localhost_UUID   
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   $
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BUGS
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None are known.
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