

You can avoid data loss while resizing the partition only for GUID-partitioned drives.If there is something in between - you need to remove it. You can only extend the partition to the free space right after the current partition.So, if you built a Fusion Drive in macOS Yosemite - don’t use OS X Lion or other older versions. If using an Apple Fusion Drive (technology that represents separate HDD and SSD drives like one logic device), never use a Disk Utility older than one used for the creation of Fusion Drive.In this example we will use macOS High Sierra.ĭisk Utility is quite a simple tool to resize partition in Mac, but there are a few recommendations that can save your time: Its GUI was seriously redesigned the release of “El Capitan ”, so you may notice some interface differences if running an older Mac.


You can perform any disk-related operations in macOS using the built-in Disk Utility.
