LSSU(1)LSSU(1)NAMElssu - list usage state of NILFS2 segments
SYNOPSISlssu [options] [device]
DESCRIPTIONlssu is a utility for displaying usage state of NILFS2 segments in
device, where a segment is contiguous lump of disk blocks and an allo‐
cation unit of NILFS2 disk space. When device is omitted, /proc/mounts
is examined to find a NILFS2 file system.
This command will fail if the device has no active mounts of a NILFS2
file system.
OPTIONS-a, --all
Do not hide clean segments.
-h, --help
Display help message and exit.
-i index, --index=index
Skip index segments at start of input.
-n lines, --lines=lines
List only lines input segments.
-V, --version
Display version and exit.
FIELD DESCRIPTION
Every line of the lssu output consists of the following fields:
SEGNUM Segment number.
DATE Creation date.
TIME Creation time.
STAT State of the segment. It consists of three flags whose meaning
is shown below:
a The segment is active, meaning that it is recently cre‐
ated and cannot be reclaimed by the garbage collector.
d The segment is dirty, meaning that it is in use.
e The segment is erroneous, meaning that it has once caused
an I/O error. NILFS2 avoids allocating the segments with
this flag.
NBLOCKS
Number of in-use blocks of the segment.
AUTHOR
Koji Sato <koji@osrg.net>
AVAILABILITYlssu is part of the nilfs-utils package and is available from
http://www.nilfs.org.
SEE ALSOnilfs(8), dumpseg(8).
nilfs-utils version 2.0 May 2008 LSSU(1)