One day I realized that there is no difference between my MacBook Pro and iPhone 7 in terms of storage size. My Mac only has 128 GB capacity and recently runs out storage. So let’s have a look how to extend Mac’s storage with an external disk safely.
1-1. Why Dropbox + USB Disk?
USB Disk is less reliable than Apple SSD. But no worries! We don’t have to worry about data loss if there’s a cloud backup. Dropbox is the most major cloud storage service to upload local files.
1-2. Prereq Device
Get a USB Disk. High data transferring speed is a must.
1-3. Disk Utility
In Dec 2017, it is unavailable to choose external disk formatted with Mac OS Extended as Dropbox folder location due to “unexpected errors occurred”. I’ve verified that it’s able to set only if the disk is formatted by:
- Format: exFAT
- Scheme: Master Boot Record
Unfortunately, exFAT is much much slower than Mac OS Extended. But we don’t have a choice.
- Disk Utility for macOS Sierra: Erase a volume using Disk Utility
- Disk Utility for macOS Sierra: Partition a physical disk using Disk Utility
Change the Dropbox Folder location.
Make sure to change your application settings (Alfred, Dash, etc) to refer new PATH.
1-5. Verified Versions
- macOS Sierra 10.12.6 (16G1036)
- Dropbox v39.4.49