Cold Backup:
sudo /opt/alfresco-3.4e/alfresco.sh stop
cd /opt/alfresco-3.4.e/alf_data/ && tar cvfz /tmp/alfresco_data.tgz ./
mysqldump -u alfresco -p[password] alfresco > /tmp/alfresco.sql
Restore:
cd alf_data
sudo tar xvfz /tmp/alfresco_data.tgz
mysql -ualfresco -p[password] [db_to_restore] < /tmp/alfresco.sql