@chuckles, sure but only as a temporary measure. You would do better to backup/restore your data between the two different disk architectures.
@rupesh, i am not sure that your wordy and sometimes bizarre explanation adds anything to the basic explanations that started this thread.
@clausM, try subscribing to something like http://www.experts-exchange.com for this kind of advice.
@rahul, well RAID is described quite well on this web page, you can also find details of this and your other topics on wikipedia