Currently the drives are in spanned RAID mode, from what I can gather from the Command+R > Disk Utility read out. It says that it's got a 1.5TB hard disk, when there are 3x 500GB drives physically ...
Disk Utility ships with macOS and has been part of the operating system since its first release. Here's how to use it. Disk Utility provides various tasks such as formatting storage devices, mounting ...
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