I'm entertaining creating a largish (3.5TB+) backup server for my family.
I already own enough hardware, and I don't want to buy any more right now. The config I envision look like this:
- Two 1TB drives
- Two 750GB drives
- RAID 5?
- Distributed parity
- Can tolerate one HDD failure
- BTRFS or LVM + thin provisioning
- BTRFS heavily preferred
- Can add more drives in the future
Is this possible? I know BTRFS can fuse a bunch of drives together into one filesystem without parity, but I'd like to sustain at least one drive failure (I don't trust anything with moving parts).
Worst case I can just make 750GB partitions on the 1TB drives, but it's not trivial to make them exactly the same, and besides it's wasteful.