If you only have one sas card make sure the virtual disk is assigned to the contoller you have connected to, then in device manager on the server. Rescan for new hardware. If all is right the virtual disk should appear under disks. Then in disk management you can initialise and create a new volume and format it.
I have connected a MD3000 to a PE2850 with a SAS 5/E OS:Windows 2003 R2 SP2 I have installed the SAS 5/E drivers and the MDSM. I can see the MD300 in the MDSM (In-Band) but when I create virtual disks and assign the host hba to them I down't see them in windows. What am I doing wrong?
MD3000 direct connect to PE2850