One or both of the drives is going bad. If Windows is reporting bad sectors
the drive is in imminent danger of failing altogether. Test them
independently from each other with the drive manufacturer's drive diagnostic
program to determine which one then replace it. Windows won't be able to
tell you which one it is as Windows only sees one big drive.
Personally I never use RAID 0 and only use dynamic drives in very special
circumstances on servers. Both are hard to recover data from if a drive goes
bad. RAID 0 has no redundancy and greatly increases the chance of data loss
due to drive failure. The very small speed increase from RAID 0 doesn't
justify the increased risk in my mind. Very few data recovery utilities work
with dynamic drives. Both can also cause problems with some disk imaging,
backup, defrag, etc. programs.
--
Kerry Brown
Microsoft MVP - Shell/User
http://www.vistahelp.ca