Help with Encrypting Drives on a DNS-320 (RAID 1)

[RC Collins]

Hi, was hoping someone can help me.  My end goal is to have two drives in my DNS-320 be RAID1 and encrypted.  

Here are the general steps I have done.  

- Use the wizard make both drives RAID1 with a ext4 file system

- Install the cryptsetup package

However, when I try to "Format" the disk from the Encryption menu, I get a "Password file does not exist" error.

I thought I read somewhere that the drives need to be encrypted before they are put into RAID1 so I tried using the wizard to create drives that were not in a RAID, but I still got the same "Password does not exist" error.

As you can probably tell, I am not very familiar with Linux.

Any help you can provide would be greatly appreciated.

Thank you!!!