ZFS Mirroring: Why Your RAID Card Is the Weak Link

After a power supply failure nearly wiped his data, a home server user wants to know: what's the next step for a safer ZFS setup? The answer isn't what most people expect. Herman and Corn explain why a hardware RAID controller actually undermines ZFS's self-healing capabilities, why a simple two-drive mirror on motherboard SATA ports is often sufficient, and how a used LSI HBA flashed to IT mode can future-proof your build for under $60. They cover the exact procedure for adding a mirror drive, the reality of the ECC RAM debate for home users, and why the philosophy of ZFS is "get out of the way." If you're running ZFS on a home server, this episode will save you from the most common—and most dangerous—misconception in the hobby.