Disk Utility may combine custom drive setups on some Macs
Apple's Disk Utility program is the built-in drive and volume management tool for OS X that is included not just in the working OS X installation but also in the OS X installation and recovery volumes for an OS X system. While useful for checking system file permissions and fixing formatting errors, there are some instances where it may not properly manage some custom drive setups on iMac and Mac Mini systems.
In 2012 Apple introduced iMacs and Mac Minis with Fusion drives. This Fusion drive, in which a smaller solid-state drive is coupled with a larger hard drive … Read more

