On Tue, Oct 07, 2008 at 06:26:23PM -0200, Marcos Laufer wrote: > Hello, this is an IBM x3650, i booted with a 4.3 cd and this is the > dmesg (SAS hard disks are not recognized) > > > "Adaptec ASR-2120S" rev 0x02 at pci6 dev 0 function 0 not configured
The driver for Adaptec RAID (aac) is disabled by default. See http://undeadly.org/cgi?action=article&sid=20050318231311 for the backstory. Adaptec won't provide documentation required to maintain the driver.
