Thanks, I have found out that the VRTX chassis only supports SAS ssd's - where the blades themselves support both SAS & sata.  
Hi, I just recently acquired a Dell VRTX with a combination of 2xM620 & 2xM630. I am having trouble getting any SSD that i put into the chassis to work. They all come up as "Blocked". VRTX and controller is fully updated. I have tried a  Intel DC S4600 - Non dell version Intel X-25 (old I know) - non dell version Samsung PM851 - dell oem drive - with latest firmware Only disk I got working was a SAS HGST normal harddrive. Is there a list of compatible drives somewhere for the VTRX and the blades inside the VRTX? Looking at the "parts and upgrades" for VRTX all I see are SAS Drives - are SATA drives not supported in the VRTX? Thanks in advance for any answers.  
VRTX compatible HDD/SSD