It is generally not advised to raid the boot disk. If you want to raid disks, do so from the BIOS, not from Windows. And don't use dynamic disks, only basic disks.
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Assuming that your boot drive(s) will be attached to the Intel ICH10R SATA ports on your motherboard, you may be able to simply use Intel's Matrix RAID software to move your single-drive boot drive to a RAID0 setup without even having to reload Windows. I did this once, but my situation was different than yours so you will definitely need to research specifics for Win7 and Intel's current matrix RAID software.
Here's what I can suggest / remember regarding Intel's Matrix RAID :
- I grew a single boot WinXP load to a RAID 0 OS back about 18 months ago and it worked perfectly; this is a one-way street, you cannot go from RAID 0 back to a single drive OS
- this capability of Intel's Matrix RAID software does not seem to be well known, and I have not checked to verify if it works for Win7
- Before Intel's Matrix RAID can see your drives in a way that it can "add drives" (create RAID 0 from single drive) you must add the drives and force "RAID" in the SATA port assignments (i.e. IDE//ACHI/auto-detect/RAID) in your mother board bios settings.
- Backup your system drive before you get this fancy; I would not give this route a 100% chance of success
Here's what I can recall from a recent install of Win7 to a RAID 0 array on fresh empty drives:
- Force RAID for your SATA ports using motherboard bios
- Hit the appropriate key sequence during hard boot where Intel RAID is mentioned
- Configure the RAID
- Reboot with Win7 install in optical drive; load drivers for your RAID first, then complete the Win7 installation
Other thought regarding RAID 0 or single drive for OS... I have used RAID 0 for my OS/Programs partition for over 10 years now and love the speed increase that it provides. I do image backups of my RAID 0 OS/programs partition to my data RAID5 array to provide a secure way to restore my OS if it is ever lost, and fortunately, I've never needed to restore for any need other than changing the drives used for my OS.
Yep, it works.
My RAID 0 config ( up to now only as a trial with 2 Raptors ( 300GB 10k ) only ( with 2 additional non RAID IDE disks ) with software RAID controller only ) runs flawlessly.
Even all image and clone ( copy ) tests with Acronis seem to be reliable ( for restoring RAID 0 crashes ).
How severely I destroyed purposely the original RAID 0 installation ( programs , OS, formatting the RAID 0 disks, etc. ) , flawless recovering appeared to be a piece of cake.
I have some more RAID 0 questions.
To prevent contamination of this original subject line I open a new thread for that purpose.