Not quite sure why you mentioned three volumes, there should be just one volume.
When a RAID 5 is created or migrated it needs to be initialized, this could be the root of the problem. Bear in mind you can initialize it by going to Control Panel>>Administrative Tools>>Computer Management>>Disk Management, right click on the volume and then initialize.
I'm not sure of the original poster's configuration, but asuming he/she has a single RAID0 volume in an array, I think he/she wants to add another disk, migrate it to raid 5 while preserving the contained information (the RAID5 volume should be the same size as the current RAID0 volume).
cub_fan - can you give us more specific info? What steps did you take when adding the 3rd disk. Did you do anything in the Option ROM (Ctrl+I) menu?
From what I can read in the help file (see "Changing volume type"), the process you should have folloed is this:
- Add disk in computer
- Boot into windows
- Go to Intel Rapid Storage Technology Application
- Click on 2-disk Volume
- Click on Manage
- Under "Type: RAID0" click Change
- Select RAID5 with the new disk
There are 3 problems now:
- You already included the new disk in the array as RAID0 so removing it will break the array (not sure how you could revert to 2 disks without losing data - I'd look into an external drive to make backup if I were you
- I'm not sure if this feature works with Matrix storage (more than 1 volume per array, as is your case)
- There are people who are having trouble doing just that - adding disks to the array as RAID5 (option is greyed out)