Reddit mentions of FreeBSD Mastery: ZFS (IT Mastery) (Volume 7)

• FreeBSD Handbook - The best place to start for FreeBSD
  
• OpenBSD FAQ - Nice FAQ covering lots of topics
  
• The Book of PF - Great way to learn about the pf firewall - Applicable to Open and FreeBSD!
  
• Michael Lucas has an IT Mastery Series. Many of the books are about FreeBSD. Storage Essentials | Specialty Filesystems | ZFS and of course FreeBSD Mastery (a bit dated, released 2007)
  
  Also check out their IRC channels, forums, and mailing lists.

If you're talking about pulling 1 drive and reading the content fully on that one particular drive, then no RAID/btrfs soft-raid/mdadm/ZFS/hardware RAID is going to provide that unless you do a RAID 1 on a compatible system.

If you want cross platform (BSD/Linux), the answer is soft RAID with ZFS, that will work anywhere and require the least spending in hardware to make operational and have a decent featureset.

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With that all said, no RAID of any kind is a backup, hard drives are mechanical devices and flash chips wear down, they will eventually die in some form or another. If you want a backup, then you need three copies of your data, one, the original, two, the local backup storage, three, off site in a non mountable fashion.

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Anyway, I do want to point out the way you started this topic was in a bashing manner along with showing how little time you've put into the research of ZFS. There are books that can teach you fundamentals like https://www.amazon.com/FreeBSD-Mastery-Advanced-ZFS/dp/0692688684 and https://www.amazon.com/FreeBSD-Mastery-ZFS-7/dp/0692452354 if you like reading.