We are about to build our first multi TB raster database on SQL Server 2000 Standard Edition. This will be on an IBM SAN made up of 250GB SATA drives w/ RAID 5 configuration. Right now we are thinking of doing 4 1TB LUNs or 2 2TB LUNs. Either way how does one determine the size of individual database file for the database? This database will be a very static readonly database storing orthophotos for our GIS system.