Mountain View, CA
This article is an absolute atrocity in numerous regards. There is a lot of vaguely information presented that is not only wrong in some regards, but will lead to catastrophic data loss in other situations.
That article should really be pulled until the author has had a good 6 months of experiencing using ZFS -- "using", by the way, means performing actual administrative tasks (that includes disk replacement, bit rot situations, and expanding pools (which he gets completely wrong)), not "herp derp i amde a pzool lol i m a ssyamidin lollolol".
Making life hard for others since 1977.
I speak for myself and not my employer/affiliates of my employer.