Setting up raid 0 array with SATA, and SCSI

[WAA]

I am setting up a computer for video editing. I have three scsi (maxtor Atlas 10k U320) that will be set using Raid 0 on an adaptec 29320A controler card. I will use a serial ata western digital raptor 10k hard drive off the mother board (intel D875PBZ with serial ata ports).
1) I will use the serial ata drive for my operating system and all software. The scsi drives for storage. How does this set up sound to you?
I am most interested in any procedures I need to follow to set this up.

The next questions is for my education.
2) When you set up a raid array do all the drives have to be in this array?
a. or can you put two drives on the array and use one for your os system and software. Keep in mine that they are all on one card and wire.


Now a different approach, same questions.
If I use Serial ata drives and set up a raid 0 array can I use one for os system and the rest for storage? The same questions as above.

Thanks in advance for your input.

[Spork]

I am setting up a computer for video editing. I have three scsi (maxtor Atlas 10k U320) that will be set using Raid 0 on an adaptec 29320A controler card. I will use a serial ata western digital raptor 10k hard drive off the mother board (intel D875PBZ with serial ata ports).
1) I will use the serial ata drive for my operating system and all software. The scsi drives for storage. How does this set up sound to you?
I am most interested in any procedures I need to follow to set this up.

The next questions is for my education.
2) When you set up a raid array do all the drives have to be in this array?
a. or can you put two drives on the array and use one for your os system and software. Keep in mine that they are all on one card and wire.


Now a different approach, same questions.
If I use Serial ata drives and set up a raid 0 array can I use one for os system and the rest for storage? The same questions as above.

Thanks in advance for your input.

I have mine setup using a WD Raptor drive for my OS/games and a Maxtor drive for storage (MP3s, photos, backup data, etc). They are all going to be seperate drives no matter what so you can use them for whatever you choose.

[FatalException0E]

If you're using disk manager in Win NT/2K/XP you can set any drive (other than your system drive) to be part of an array. The setup you're talking about (SATA system drive, 3x SCSI in RAID 0) sounds pretty good in terms of performance. Remember, though, that if any one of the SCSI drives goes bad, you loose EVERYTHING on the 3 drive array. You may want to go RAID 5 instead (striping with parity)

Another issue is that you'll be eating some CPU time for the RAID management if you don't use a hardware controller. (I'm too lazy to google that SCSI controller to see if it does RAID)