Yes it will work. Are you using RSTe to configure RAID 1? Try ESRT2 instead.
I have tried both. I have also tried to install the drivers during the Server 2008r2 setup process. It appears that the RMs25cb080 takes over everything.
Do you know if there is any type of step by step map of how to acomplish this?
I have over a dozen intel servers and there allways seems to be some poorly documented twist to making everything work in the right order.
Intel® RSTe for Windows* Software User Guide gives instructions that end up with only the add in raid card being accesable.
OK let's take a step back and check everything from the beginning. Suppose you're using ESRT2:
1. Cable connection. I suppose you have three cable connected to the backplane right? One from the board and two from the RAID module. In your case there is no need of expander.
2. How many hard drives are you using, and how are they populated? Note the hard drive order is as below:
So the drives for RAID 1 should be in slots 0-3, and drives for RAID 6 should be in slots 4-11, assuming port 0-3 is connected to the board while other two are connected to RAID module.
3. You see both Ctrl-E and Ctrl-G prompt during POST, and you can configure both RAID 1 and RAID 6 VDs right?
4. ESRT2 doesn't support booting from a VD larger than 2TB. So make sure your RAID 1 VD doesn't exceed 2TB.