The overall style is quite similar, but it's still very different...
The style isn't one invented by Seagate either, it's a logo model that's used widely across the tech/other industries:
http://goodlogo.com/extended.info/seagate-logo-3664
http://en.wikipedia.org/wiki/File:Seagate_logo.svg
https://www.google.com/search?q=seag...HMSRiQen_ICwBg
http://www.seagate.com/as/en/