Disk 1 = 750 7200rpm (C boot, system, primary partition. I'm thinking of adding a SSD as a boot drive with a fresh install and a 2TB green. Here's my question. How does Disk 0, Disk 1, etc. matter?
Whether you need to better organize your hard drive or resolve disk errors, Disk Utility is the tool for the job. Built into macOS, Disk Utility is tucked away in the Utilities folder, which is found ...