[_dave_]

If you want to preserve your OS installation, while using the existing drive in aprtnership with a new one in a RAID0 formation - you will need to copy it elsewhere first (USB HDD, a pile of DVDs, whatever - use Ghost or Partition Magic or such similar programs.

After creating an array, the (pair of) drives will need to be formatted.

Also, try to get an identical match to your current HDD, although I'm not sure how important that is these days.


Also - HDDs are bloddy cheap in the UK these days - I'd prob just get a new (identical) pair, create a RAID0 on them, and ghost the OS across. Then put the old HDD in a USB enclosure and use it for backup etc.

dave.