Thursday, 02 February 2017 22:16

How to make sure Time Machine backs up external drives Featured

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Mike Keslosky uses Time Machine, and wants to shift his Photos and iTunes libraries from his startup volume to an externally connected hard drive. But he’s concerned that after he moves those libraries and deletes them from his internal drive that Time Machine won’t back them up.

Fortunately, Time Machine can back up any locally connected drive, although Apple configures it by default to excludes external drives. If you have a Mac Pro or another system that you’ve partitioned or configured with multiple internal drives, those are all included by default.

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Time Machine automatically excludes external drives from backup.

You can ensure that external drives are backed up by following these steps:

  1. Open the Time Machine system preference pane.
  2. Click the Options button.
  3. Select any drive in the exclusion list that you want to have Time Machine include.
  4. Click the - (minus) button to remove it. (Repeat for additional drives.)
  5. Click Save.

That’s all you have to do.

The exclusions list is confusing, because you might want to only include certain parts of an external drive. There’s no built-in way to make this happen. Say you wanted to back up a Movies folder on an external drive, but none of the five other top-level folders.

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SPEEDEE spends his day searching the internet for the information you need to better use your Mac, iPhone, iPad, Apple TV, Apple Watch and all else Apple.

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