First Raid 1 is a misnomer, it is NOT redundant, although it does provide slightly better performance.

RAID 0 also can provide slightly better read performance as it can read from either drive to satisfy a request. So two diff programs can read different data at the same time. metoforically (??) speaking. And does provide Redundancy, if one fails your data is still intact on the other.

Now for the real question, WHY ?????

First, with limited exception, if you REALLY want RAID go RAID 5 or 10 (1+0).

Again though why, RAID makes sense in data critical corporate environments.
But was invented back in the days when HDs died regularly, they have become MUCH more (100 or 1000 times compared to just a few years ago) reliable.

For most people here's what I recommend.
Some performance gains can be created by increasing the # of spindles (Physical drives). So lots of little drives (tough in todays 500 gig standard) can solve that some.
Put the OS on one drive, swap on another, and 2 or ?? for your data.

THEN REPEAT THEN
to protect your data backup daily, Acronis would be my choice.
Image your HD to an external USB regularly, preferably 2 or 3 of them that you rotate through. One on-line, one in a fire proof safe, and one OFF site.

Remember, even though you multitask, I'd bet you rarely tax the IO system on your computer beyond 5 or 10 %, so making a 10% improvement in it won't really help.

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KLK, MCSE

1990 500SL

I was always taught to respect my elders.
I don't have to respect too many people anymore.