This is almost identical to my backup server except I have 3x2TB drives in a RAID-Z pool. I agree with all the author's "reasons this is awesome" except my #1 reason is data integrity.
ZFS with RAID-Z does block-level checksumming and automatic healing as you access your data. Combine that with a weekly scrub (touches every block so any silent bit flips are healed) and I can do away with my fears that my precious bits are rotting away.
ZFS uses block-level checksumming for every block. The auto healing can be used when there is a second copy or another way to rebuild that block, read Raid-Z. So you get the auto healing already when using mirror.
as long as you have ECC ram. If not, you're at increased risk than most other filesystems (which are also at risk) - ZFS was designed with the requirement that RAM is reliable.
ZFS with RAID-Z does block-level checksumming and automatic healing as you access your data. Combine that with a weekly scrub (touches every block so any silent bit flips are healed) and I can do away with my fears that my precious bits are rotting away.