CaptainxShittles

I'm looking to buy some 20tb drives to upgrade my NAS. It currently hosts a 12x3tb striped mirror setup on Truenas Scale plugged into a NetApp DS4246 24 bay. It is backed up elsewhere.

With how large HDDs and even SSDs are getting I would only need a mirrored 20tb pair to cover my current data and have quite a bit of open space left yet. (Like double) Eventually it will grow though. My backup uses a Rosewill case with 15bays. It seems ridiculous to only put two drives in a 24bay shelf. Even if I use another Rosewill case and put 14 drives in it, in a striped mirror setup that is 140tb.

Is it worth using the extra power of the shelf vs just a Rosewill case and some lsi cards? I wouldn't even need the lsi cards just yet. I'm contemplating selling the shelf and current drives and replacing it with 4 20tb. A mirror on the main setup and a mirror on the backup in two Rosewill cases. I do realize I lose the redundant power supplies.

(I realize that people in the data hoarder category are in a different situation but I don't plan on having 140tb of data in the near future.)

I am curious on if this is common for separation but the picture shows our current setup. Sorry it's a bit crude. The major line in the middle is the separation of my parents house and the PFSense and switch I put in for them. The left side is my rack and homelab. That is the separation of items that will move with me when I move out. Red lines are 10G and black lines are 1G.

What I am looking to do is separate the two networks so I can mess around with anything in the homelab and not down the Internet or any connections. Then I can play in PFSense and the switch without messing with anyone else. This also allows me to move the setup to where I move and have a semi setup network already.

What are the downsides to this? Has anyone done this before? Should I run routing on the switch vs pfsense?

Thank You in advance.