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lessfs

lessfs


Intro


lessfs is a deduplicating filesystem. If you store files that have the same content, lessfs saves the data only once. Additionaly lessfs compresses the content and can also encrypt content and metadata.

Installation


Example with Opensuse 11.2:

Add repository and install lessfs:

zypper ar http://download.opensuse.org/repositories/filesystems/openSUSE_11.2/ repo-filesystems
zypper refresh
zypper in fuse-lessfs


Configuration


Copy the example config and edit it matching your needs:

cp /usr/share/doc/packages/fuse-lessfs/etc/lessfs.cfg /etc/
vi /etc/lessfs.cfg


With the example config you will get filesystem data in /data/dta and metadata in /data/mta. Use
man lessfs

to learn more about the options.

Create the directories:
mkdir -p /data/dta
mkdir -p /data/mta



Make the filesstem


mklessfs /etc/lessfs.cfg


Mount


lessfs /etc/lessfs.cfg /mnt


Check if you can see the filesystem with df or mount. If something goes wrong you should check the the system log (/var/log/messages).

Unmounting can be done with
umount /mnt


Usage


I use it as backup storage for many systems with rsnapshot - another cool tool!



Created by redflo. Last Modification: Thursday 06 of May, 2010 23:56:10 UTC by redflo.

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