Poster of Linux kernelThe best gift for a Linux geek
FILEFRAG

FILEFRAG

Section: Maintenance Commands (8) Updated: December 2010
Local index Up
 

NAME

filefrag - report on file fragmentation  

SYNOPSIS

filefrag [ -Bbsvx ] [ files... ]  

DESCRIPTION

filefrag reports on how badly fragmented a particular file might be. It makes allowances for indirect blocks for ext2 and ext3 filesystems, but can be used on files for any filesystem.

The filefrag program initially attempts to get the extent information using FIEMAP ioctl which is more efficient and faster. If FIEMAP is not supported then filefrag will fall back to using FIBMAP.  

OPTIONS

-B
Force the use of the older FIBMAP ioctl instead of the FIEMAP ioctl for testing purposes.
-b
Use 1024 byte blocksize for the output.
-s
Sync the file before requesting the mapping.
-v
Be verbose when checking for file fragmentation.
-x
Display mapping of extended attributes.
 

AUTHOR

filefrag was written by Theodore Ts'o <tytso@mit.edu>.


 

Index

NAME
SYNOPSIS
DESCRIPTION
OPTIONS
AUTHOR

This document was created by man2html, using the manual pages.
Time: 22:01:38 GMT, April 16, 2011