Images are about 1.5 TB. Storage is 15 1TB disks and 18 2TB disks, arranged into three 6TB RAID-5 arrays: primary, backup, and off-site backup. (I do a lot of videography and short films.)


Each 6TB RAID-5 array costs about $500:


Four 2TB disks ($90/each)


Mediasonic 4-bay Enclosure ($110)


Although I use WD Caviar Black 2TB drives for $180, not the $90 cheap-o drives. They are all Linux software RAID, so the performance, reliability, and long-term safety is great. Unfortunately, Windows and Mac have terrible software raid implementations, so most people can