I'm trying to setup a spanned volume (in Windows) on my two 640GB HDDs, one has data on it the other is "unallocated". However when I attempt to extend the volume onto the unallocated HDD it claims "The volume requires contiguous disk extents". I have the HDDs in as Disk 1 and 2 respectively in Disk Management, so what the heck is going on?
If you create a RAID0 of two disks, both disks would lose their data. You said one disk already has data on it, then you can't use that for a RAID0 array if its in use.
Please read a bit on what RAID is and how to use it. Always make sure you have a good backup. You might end up losing data otherwise.
Thank you for the reply. I didn't realize that it attempts to create RAID0 when you are extending dynamic volume in windows Storage Manager. this term is missing in all Microsoft articles on this topic
That error message may have saved you from losing all your data on the "Disk1" that you tried to convert to a dynamic volume (aka Windows Software RAID). I would suggest not playing with these options unless you have a very good backup in place. Otherwise, you might burn your fingers and lose alot of data.