Synology products are so cheap these days, and synology has a proprietary SHR (synology hybrid raid) structure that allows you to mix and match any kind of drive you want, from 100 gigs all the way to 3tb as you mentioned with redundancy built in - consider it a modified raid 5 that allows you to mix and match drives from different sizes and vendors.

This whole thing can be fixed with ziphone. I was able to restore my phone back to 1.1.4 in less than a minute. simply downgrade you bootloader and you're golden.