Boot drive failure restore data from separate software raid

[redherring]

Think I've been a little stupid here but I'm really not sure.

I have a single boot disk with just the apps on, and 2 disks in a software mirrored RAID in which I keep all the important stuff.

Its just occurred to me, if the boot drive fails won't the software RAID be destroyed as well?
Or will it be easy to recover the data off one of the previously RAID1 disks, when the new boot drive is installed?

 

[UltraNEO*]

On the Mac, the software RAID's will stay intact regardless of what happens to your other drives. In fact, I believe you can even move them to another workstation and they should be fine - provided that's using OSX too!