• We’re currently investigating an issue related to the forum theme and styling that is impacting page layout and visual formatting. The problem has been identified, and we are actively working on a resolution. There is no impact to user data or functionality, this is strictly a front-end display issue. We’ll post an update once the fix has been deployed. Thanks for your patience while we get this sorted.

How do I enable AHCI mode on a RAID controller?

fffblackmage

Platinum Member
I recently bought a couple Rosewill RC-211 2-port SATA RAID controllers. It uses the Silicon Image chip Sil3132. I'm using it in my NAS running FreeBSD 8.2.

I was able to simply install the PCIe card into my NAS and connect a couple HDDs to the PCIe card. FreeBSD immediately recognized the card and the attached HDDs (listed as devices ad4 and ad6, iirc). If I'm not mistaken, ad should mean it's connected as IDE mode devices, not AHCI, which should be ada#.

I've emailed Rosewill about how to switch to AHCI mode, but they said the RC-211 doesn't support AHCI, which doesn't make sense, given the RC-211 supports NCQ and hot-swapping. I'm still waiting for another response, but they're so slow that I figured I probably have a better chance of finding the answer here first.
 
Last edited:
Back
Top