Creating a Fusion Drive from an existing disk, without erasing it

Photo of Phil Schiller on stage presenting Apple's Fusion Drive technology, at Apple's iPad Mini event on October 23rd, 2012.

Note: this guide was written circa macOS 10.13 High Sierra, in 2018. Its accuracy has not been verified for newer macOS releases. Curiously there’s very little information out on the web (at time of writing) on how to create (or expand) a Fusion Drive without erasing its contents first.  It’s entirely possible to do so… Read more

Encrypted RAID volumes in El Capitan

Apple crippled Disk Utility in El Capitan, in their usual name of making good functional things pretty & pretty useless. Luckily I’m far from the first person to need to create RAID and/or encrypted CoreStorage volumes, in El Capitan. ¬†Florian Knapp has a concise summary of how to set up an encrypted RAID volume. ¬†Tom… Read more