we store around 500gb of photos currently. They are stored with two classifications. Our photography studio and our family photos. Both are organized chronologi

we store around 500gb of photos currently. They are stored with two classifications. Our photography studio and our family photos. Both are organized chronologically with a top level folder that is the year. Within that folder we have 1 through 12 for the months and then each month is divided up to events (and sometimes the specific date). All of the photos are backed up daily to a 1TB RAID1 NAS and monthly to a single 1TB hard disk that rotates to my mother in laws house. My rule of thumb is three copies if you don't want to lose it. It is important to keep in mind that 16+ gigs of photos is only going to grow over time. That is where we started too.