Section: User Commands (1)Updated: May 2008Local indexUp
NAME
lssu - list usage state of NILFS2 segments
SYNOPSIS
lssu
[options] [device]
DESCRIPTION
lssu
is a utility for displaying usage state of NILFS2 segments in
device, where a segment is contiguous lump of disk blocks and
an allocation 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
Do not hide clean segments.
-i index
Skip index segments at start of input.
-n lines
List only lines input segments.
-h
Display help message 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 created 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.