Lustre 1.6 Operations Manual

32.5 New Utilities in Lustre 1.6
This section describes new utilities available in Lustre 1.6.
32.5.1 lustre_rmmod.sh
The lustre_rmmod.sh utility removes all Lustre and LNET modules (assuming no
Lustre services are running). It is located in /usr/bin.
Note – The lustre_rmmod.sh utility does not work if Lustre modules are being
used or if you have manually run the lctl network up command.
32.5.2 e2scan
The e2scan utility is an ext2 filesystem-modified inode scan program. The e2scan
program uses libext2fs to find inodes with ctime or mtime newer than a given time
and prints out their pathname. Use e2scan to efficiently generate lists of files that
have been modified. The e2scan tool is included in e2fsprogs, located at:
http://downloads.clusterfs.com/public/tools/e2fsprogs/latest
Synopsis
e2scan [options] [-f file] block_device
Description
When invoked, the e2scan utility iterates all inodes on the block device, finds
modified inodes, and prints their inode numbers. A similar iterator, using
libext2fs(5), builds a table (called parent database) which lists the parent node for
each inode. With a lookup function, you can reconstruct modified pathnames from
root.
Chapter 32 System Configuration Utilities (man8) 32-17