Hello Josh, thank you for your reply. I was looking at the wrong page. I deleted the Hotswap spares, and created a new VD on the management page by pressing F2. That worked. I see 2 discs which can now be initialised. thanks !!
I have a dell t310. Perc h700 controller. one sas disk (no raid) i wanted to insert second disk on front bay. Press  Second disk status"; Blocked. there's no way to force it online. The only thing i can do is make the led blink.  Well some hours later i updated the firmware of m H700 PERC raid adapter. Now it shows:  ready.  But now i can only create  Hotspare.  I don't want to use raid, just raid 0. But how do I activate the disks in raid 0?
T310 Sata disk blocked