Hello, have 1x HDD Hitachi and 1x SSD Intel 520 series. I had fusion from both disks but today I split disks back with command: sudo diskutil remove "fusionname" All worked fine but I have a big problem with my disk now. Intel hasn't his name, it shows only OS name and there is I don't have any free space BUT I have only clean yosemite. Any ideas please? Thank you.