bang-on. This article should be thrown in the trash. The EXAMPLES for a raidz and raidz2 and raidz3 are mis-aligned in the article. They will obviously have

bang-on. This article should be thrown in the trash. The EXAMPLES for a raidz and raidz2 and raidz3 are mis-aligned in the article. They will obviously have terrible performance, and waste space due to blocks not fitting nicely due to non-standard physical block sizes. mirror's are easy because you don't have to worry about ASHIFT values, and physical block sizes of devices and making sure all of your blocks can be divided nicely into 128K block sizes. I get the feeling that the author of the article never actually has ran a properly configured raidz(x) with SLOG and cache devices.