I still have yet to purchase the PSU or graphics card, i'm hoping I can find something cheaper. I did forget to mention that.
ItsMeBrandon_G
I didn't see many deals, I did grab a couple 16tb's off serverpartsdeals.com in order to fill up the remaining 2 3.5" bays I have one server. That and a friend of who's giving up data hoarding sold me 7 slightly used 20tb wd essentials for a bargain, which I'm not going to even shuck those I'll keep them as offline backups.
Linux has Luks which is very effective, all my machines are encrypted using Linux LUKS, I don't really ever use Windows for encryption I know bitlocker exists but I've read articles on how people can still get access to the drives.
To keep people off certain folders, drives, you would need to setup user or group permissions. I do this in Linux as well, only I have access to the 18+ stuff.
Hardware wise you can find enterprise drives that have encryption built into it. I know some WDC drives have it.
Here is an link to WDC drives that have AES-256 encryption built into it: WDC Drives I would expect them to cost a bit more, but if you really need the protection I would build a machine with Linux as the main OS, and then configure the drives under luks with passwords, hell even a passkey file using random 2048 string can be configured. Run Windows under Virtual Machines, I have a 10/11 VM that can read/write to the drives, but you still need a password to open the VM's.
I'm sure there is a solution for you. Just like I've found one for me.
I'm using both on board and HBA. The psu I have listed has 14 sata connectors for power, and on corsair site you can get sata sleeves to plug in additional drives.
I emailed Corsair and asked if you can get them from their website for about 16$ each.
I'm not doing those cheap molex to sata adapters either.