Filesystem            Size  Used Avail Use% Mounted on
/dev/sda2             2.5G  1.6G  849M  65% /
tmpfs                1014M   12K 1014M   1% /dev/shm
/dev/sda8             3.2G  407M  2.6G  14% /home
/dev/sda5             5.0G  1.6G  3.1G  34% /srv
/dev/sda6             487M  391M   71M  85% /var
/dev/sda1             9.9G   59M  9.3G   1% /var/spool/mail
/dev/sda7             8.9G  777M  7.7G  10% /var/lib/pgsql


totale backup:
36 GB - meglio se in una cassetta

parziale:
httpd: 
5 GB
db:
8 GB
mail
8 GB
home
20 GB

tot: 
5+8+8+20 > 36 GB

HP StorageWorks DAT 40		40 GB of compressed data	21.6 GB/hr
	HP SureStore DAT 40e	1.165,00(syspack)
HP StorageWorks DAT 72		72 GB of compressed data	21.6 GB/hr
	DAT STORAGEWORKS HP 72 EXTERNAL Q1523A (CDC HP.DA) 	676,00 €euro