Newer models of Security Analytics hard drives have the ability to be encrypted.  Encryption is not automatic and must be configured manually.  

Use the following command from the CLI to determine if:

1. Are my drives encrypted or not?
2. If they are encrypted, what kind of encryptions are they using?

megacli -ldinfo –Lall -aall

The output of the command should look like the below.  If Encryption Type is None, then the drives are not encrypted.

Adapter 2 -- Virtual Drive Information:    
Virtual Drive: 0 (Target Id: 0)    
Name                :Capt_Secure    
RAID Level          : Primary-5, Secondary-0, RAID Level Qualifier-3    
Size                : 40.019 TB    
State               : Optimal    
Strip Size          : 64 KB    
Number Of Drives    : 12    
Span Depth          : 1    
Default Cache Policy: WriteBack, ReadAhead, Direct, Write Cache OK if Bad BBU Current Cache Policy: WriteBack, ReadAhead, Direct, Write Cache OK if Bad BBU    
Access Policy       : Read/Write    
Disk Cache Policy   : Disk's Default    
Ongoing Progresses:      
Background Initialization: Completed 0%, Taken 7 min.    
Encryption Type     : FDE    
Bad Blocks Exist: No