iStorage DISKASHUR M2 Manuel De L'utilisateur page 31

4. Select a scheme and volume format to use. The Volume Format dropdown menu lists the available drive formats that the Mac
supports. The recommended format type is 'Mac OS Extended (Journaled).' For cross platform use exFAT. The scheme format
dropdown menu lists the available schemes to use. We recommend using 'GUID Partition Map' on drives larger than 2TB.
5. Click the 'Erase' button. Disk Utility will unmount the volume from the desktop, erase it, and then remount it on the desktop.
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