Other potentially related issues:
http://www.readynas.com/forum/viewtopic.php?f=65&t=51496&p=306494
http://forum.qnap.com/viewtopic.php?f=182&t=39893&start=30
http://forums.seagate.com/t5/Barracuda-XT-Barracuda-Barracuda/ST2000DL003-Barracuda-Green-not-detected-at-BIOS/td-p/87154/page/7
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Christian Robottom Reis | [+55 16] 3376 0125 | http://launchpad.net/~kiko
Canonical Ltd. | [+55 16] 9112 6430 | http://async.com.br/~kiko