(Storage Technology Corporation, Louisville, CO) Acquired by Sun in 2005, StorageTek had been a leading provider of disk and tape storage solutions and services that was founded in 1969. Its first products were open reel tape drives for IBM mainframes, and subsequent offerings included DLT, SDLT, LTO and 3480-based drives and libraries.

The Powderhorn library, which held up to 3,600 terabytes of data in 3480/3490 and StorageTek cartridges, was famous for being the largest nearline storage device in the world. A large part of StorageTek's business came from storage networking components, virtual storage technologies and professional services and maintenance.