One of the largest personal iTunes libraries I've ever seen belongs to a client of mine. This client, who was a DJ in the 50's and 60's, has a huge collection of vinyl albums and singles that he painstakingly digitized, cleaned up, and catalogued in iTunes. Needless to say, opening iTunes on his Mac Pro is an exercise in patience.
Thinking about his music storage needs, and the huge amount of digital photos and video that my wife are accumulating, got me musing about other ways to do mass storage inexpensively. At this point, I'm probably OK with a DroboPro, but what if I needed petabytes (1 petabyte = 1,024 terabytes = 1,048,576 gigabytes) of storage? Most solutions at this point in time are quite expensive.
As of 6 AM PDT this morning, off-site backup vendor BackBlaze has put their solution to mass storage needs, the BackBlaze Storage Pod, out to the world as an open source project. Their solution is a relatively inexpensive box (US$7,867 for 67 TB of storage) made up of off-the-shelf components that can be reproduced and/or improved upon by others who also need huge amounts of cheap storage. See those red boxes in the picture to the right? Each one of those contains 67 TB of RAID 6 storage in a 4U box. For a petabyte of storage, you're going to need to spend about $117,000 on about fifteen of the boxes.