Posted 15 January 2007 - 09:00 AM
I'm not familiar with the mirroring, I do only stripping, but I believe that in any RAID it has to wipe the hard drive so that the new file system tables, or whatever, are setup properly. You will be able to adjust another blank drive once your original drive is RAID 1, but now none of your drives is RAID so I'm affraid you'll have to lose all the data.
I have ICH8r as well, just download the Intel Matrix Storage application, run the setup, don't push next but go in your temporary folder and find the subfolder with the Driver and Driver64 folders in it, they are your needed txtmode drivers, copy them for later and integrate those with nlite and select all ICH8 on the list once prompted.
Also integrate the chipset driver, called Intel INF driver. Oh, oh almost forgot...download and integrate the Jraid IDE txtmode driver, unless your DVD drive is SATA too.
Setup your CD, test it that it boots properly with the BIOS set to SATA RAID and that it sees the drive. Only then create the array, of course backup all you need.
Also I went through all that and I can say that there is a big chance something will go wrong so have another PC at hand to redo your CD or something if needed.
As you can see a lot of work but once you have all the drivers in your Windows it will be transparent, I just load my last nlite preset and reinstall, forgot that I had to do all that.