I am currently building a RAID-5 with three 2TB HDDs on Debian. I am wondering how I could configure my RAID to be encrypted and expandable in the future. I do not need nor want partitions, but must I use LVM to be able to resize the filesystem? Or do I need it (LVM) for the encryption? If so, between which layers?
Disks > RAID > (LVM?) > Encryption > (LVM?) > Filesystem (JFS)
Also, for the encryption, I was wondering if I should use dm-crypt, dm-crypt with LUKS, or loop-AES. Do you have suggestions?
Thanks for your time,