The MD3000 doesn't support connectivity to a PERC5E or PERC6E. It's odd that the PERC5E even worked at all (was this instead maybe a SAS5E?). Try using a SAS5E controller as this is the only supported controller to connect to an MD3000.
I have a dell power edge r720xd connected to an MD3000 powervault. I had the whole thing working using a perc 5e controller card in the Server. This card stopped working but luckily I had a perc 6 handy, so i put that in the server.In the modular Disk Storage Manager I added the new card to the host group and remapped the virtual drives to the host group. now when i plug the SAS cable into the server from the MD3000 i get this error in the error log: A non-Dell supplied disk drive has been detected:  Physical Disk 0:17 Controller 1, Connector 0 followed directly by this error: Device returned to normal:  Physical Disk 0:17 Controller 1, Connector 0 I then get this error in the error log: Unexpected sense. SCSI sense data: Sense key:  5 Sense code: 24 Sense qualifier:  0:  Physical Disk 0:17 Controller 1, Connector 0 The LUN does not show up on my server now, even when i refresh and rescan via disk manager. Can anyone help advise whats going on here? Are the first two errors red herring's/false alrarms, as i have my r720 running from an OS installed on a crucial SSD in the front load disk array. Thanks! 
Error: A non-Dell supplied disk drive has been detected: Physical Disk 0:17 
Controller 1, Connector 0