"""
S3QL is a file system that stores all its data online using storage services like Google Storage, Amazon S3, or OpenStack. S3QL effectively provides a hard disk of dynamic, infinite capacity that can be accessed from any computer with internet access running Linux, FreeBSD or OS-X.

S3QL is a standard conforming, full featured UNIX file system that is conceptually indistinguishable from any local file system. Furthermore, S3QL has additional features like compression, encryption, data de-duplication, immutable trees and snapshotting which make it especially suitable for online backup and archival.
"""
Extrêmement prometteur.

repartir d'un snap lvm:

/etc/init.d/mysql stop

 umount /var/lib/mysql

lvconvert --merge /dev/datastore/mysql-snap # merge du snap
lvcreate -L 25G -n mysql-snap -s /dev/datastore/mysql # la commande précédente vire le snap mergé, il faut en recréer un autre

mount -a

/etc/init.d/mysql start

virer un snap lvm

lvremove /dev/datastore/mysql-snap