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Full Discussion: i-nodes
Top Forums UNIX for Dummies Questions & Answers i-nodes Post 7311 by rwb1959 on Monday 24th of September 2001 09:27:48 PM
Old 09-24-2001
In UNIX, an inode represents the information
stored by the OS for an individual file for the
UNIX file system (remember, a file can represent
a device as well). Typically, the maximum
number of inodes is fixed at file system
creation time. If you find you are running
out of inodes often, you may have to adjust
the system tunable parameter and rebuild your
kernel. Normally, this value is set to 3 or
4 times the maximum number of files allowed
for a file system (since stdin, stdout, stderr
and sockets require inodes as well). Under normal
circumstances, you should not run out of inodes
before you run out of file space (or max_files).
This can happen if you are creating a LARGE
number of very small files.

I hope this helps Smilie
 

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ILS(1)							      General Commands Manual							    ILS(1)

NAME
ils - List inode information SYNOPSIS
ils [-emOpvV] [-f fstype ] [-s seconds ] [-i imgtype ] [-o imgoffset ] [-b dev_sector_size] image [images] [start-stop] ils [-aAlLvVzZ] [-f fstype ] [-s seconds ] [-i imgtype ] [-o imgoffset ] image [images] [start-stop] DESCRIPTION
ils opens the named image(s) and lists inode information. By default, ils lists only the inodes of removed files. Arguments: -e List every inode in the file system. -f fstype Specifies the file system type. Use '-f list' to list the supported file system types. If not given, autodetection methods are used. -s seconds The time skew of the original system in seconds. For example, if the original system was 100 seconds slow, this value would be -100. -m Display the inode details in the format that the mactime program reads (replaces the ils2mac script from TCT) -O List only inodes of removed files that are still open or executing. This option is short-hand notation for -aL "(see the fine con- trols section below). (this used to be -o). -p Display orphan inodes (unallocated with no file name) -r (default) List only inodes of removed files. This option is short-hand notation for -LZ (see the fine controls section below). -i imgtype Identify the type of image file, such as raw or split. Use '-i list' to list the supported types. If not given, autodetection methods are used. -o imgoffset The sector offset where the file system starts in the image. -b dev_sector_size The size, in bytes, of the underlying device sectors. If not given, the value in the image format is used (if it exists) or 512-bytes is assumed. -v Turn on verbose mode, output to stderr. -V Display Version. image [images] One (or more if split) disk or partition images whose format is given with '-i'. start-stop Examine the specified inode number or number range. Fine controls: -a List only allocated inodes: these belong to files with at least one directory entry in the file system, and to removed files that are still open or executing. -A List only unallocated inodes: these belong to files that no longer exist. -l List only inodes with at least one hard link. These belong to files with at least one directory entry in the file system. -L List only inodes without any hard links. These belong to files that no longer exist, and to removed files that are still open or executing. -z List only inodes with zero status change time. Presumably, these inodes were never used. -Z List only inodes with non-zero status change time. Presumably, these belong to files that still exist, or that existed in the past. The output format is in time machine format. The output begins with a two-line header that describes the data origin, and is followed by a one-line header that lists the names of the data attributes that make up the remainder of the output: st_ino The inode number. st_alloc Allocation status: `a' for allocated inode, `f' for free inode. st_uid Owner user ID. st_gid Owner group ID. st_mtime UNIX time (seconds) of last file modification. st_atime UNIX time (seconds) of last file access. st_ctime UNIX time (seconds) of last inode status change. st_dtime UNIX time (seconds) of file deletion (LINUX only). st_mode File type and permissions (octal). st_nlink Number of hard links. st_size File size in bytes. st_block0,st_block1 The first two entries in the direct block address list. SEE ALSO
mactime(1) LICENSE
This software is distributed under the IBM Public License. HISTORY
First appeared in The Coroners Toolkit (TCT) 1.0. AUTHOR(S) Wietse Venema IBM T.J. Watson Research P.O. Box 704 Yorktown Heights, NY 10598, USA This version is maintained by Brian Carrier (carrier at sleuthkit dot org) Send documentation updates to <doc-updates at sleuthkit dot org> ILS(1)
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