I tried this tutorial, but it didn't work. I created a new array, and than I tried to change an existing one to secure, but it didn't  work. So i started to digginfg deeper and deeper, while I found the final answer! The Cheetah 15K series is SED capable, but NOT all versions! This is the trick. ST3600057SS -> Basic modell  ST3600957SS -> SED capable modell ST3600857SS -> FIPS SED capable modell ST3600057FC -> Basic modell (only 6GB/s SAS connector) ST3600957FC -> SED capable modell (only 6GB/s SAS connector) ST3600857FC -> FIPS SED capable modell (only 6GB/s SAS connector) I have got the first basic modell, which is not a SED capable modell... This is why didn't work. 
Dear community and support team,  My problem is very simple: The Self Encription Drive (SED) don't work.And I want to know what I mised or what I did wrong. Please help me! Hardware: Dell PowerEdge R510 (Service TAG: **removed by moderator**, Bios version: 1.6.3) PERC H700 Raid 512MB + BBU (Firmware: 12.12.1-0001)6 x Dell Cheetah 15K 600GB SAS Disks (Modell Number: ST3600057SS) What I did: PREC H700 says: What is wrong with this configuration? What i mised? Because my controller SED capable, my drives SED capable too, and all of them is DELL Certified... But it dont want to work...  Yours,Daniel
PowerEdge R510 and PREC H700 and SED don't work