I have a number of systems running a mix of Windows XP and FreeBSD. Until now, I have always used the default filesystem in each case and done backups by hand. Now I need to create a NAS system with 2 purposes: to be a sandbox for experimenting with high-throughput, strongly fault-tolerant transactional database storage, as a LAN-shared, non-scratch storage system. The best choices seem to be RAID 10, perhaps hardware-assisted, or ZFS RAID-Z/Z2. Data integrity is most important, followed by staying within-budget, followed by high throughput. Can someone with experience help me sort this out? The information I've found so far seems outdated, irrelevant to FreeBSD, too optimistic, or has insufficient detail.