depends on your provider but most will allow you to place all your servers on a 'shared'/private switch where you dont get charged for transfer between them so you could easily mount folders from lower spec server via nfs (read one of my other posts of the last couple of days where i mention how to mount the httpdocs of plesk on a different drive - smae would work for nfs shares i think)
Thanks for the ideas! I check out freenas, and it seems promising. However, as I've never implemented this before, does anyone know whether the speed between the NAS and the web servers is sufficient for read/writes (assuming it's running FE)?
I was also looking for a solution like this as many of my 250 GB HD's are full. If a central storage like NAS works perfectly, it will be good as we can use it on many of the servers with out much wasted space.
Anyone know how hosts that offer big hard disk space do ? They have big hard disks per server ? Or they use shared storage like NAS, SAN etc ?