Support for Promise pdc20378 SATA controller

[Jim Mozley]

I am inquiring about support for the promise pdc20378 SATA RAID 
controller on a Tyan Tomcat S5012G3NR motherboard. I am about to take 
delivery of a server with this hardware and wanted to mirror two disks. 
The supplier is preloading FreeBSD (I'm a new to this OS) but says there 
are problems supporting the RAID controller.

I have seen this in a recent previous post...

"...the RAID support is great using the Promise PDC20378 SATA150 
controller for FreeBSD."

Can anyone give some pointers as to how this support for RAID is achieved?

I've started to look at the vinum and atacontrol documentation but am 
getting buried under a wealth of new information. Any clues would be 
helpful.

Thanks,

Jim Mozley