Me too I have the same exact issue, with 4 x 2GB hard disk in RAID5!
License is a DSSv7 SOHO, which is supposed not to support H/W RAID, but ok... this is a software raid! So... why?
Just a precisation: this is a dss6 upgraded to dss7 soho with 12GB license, and with a pre-existing RAID5.
Mmmh... is RAID5 supported in DSSv7 SOHO? Or just RAID1 ??