My rugged lacie external hard drive is taking many hours to back up my computer

It's been taking about 4 hours for my rugged LACIE external hard drive to back up my MacBook Pro. The last update was prior to updating my Mac to Ventura 13.1.2 and only took about 30 minutes. How can I tell if it means I need a new LACIE or if it's a glitch in the Ventura update?

MacBook Pro 15″, macOS 10.15

Posted on Mar 22, 2023 1:05 PM

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Posted on Mar 22, 2023 1:14 PM

If it is the first Time Machine backup since upgrading to Ventura, then it is normal for it take a long time.


If Time Machine takes a long time to back up - Apple Support is not very good at explaining the reason, except for the brief passage "Time Machine backs up only the changes since your last backup, ..." That includes changes that arise as a consequence of upgrading macOS, which can be extensive.


Give it a day or two to settle down before drawing any conclusions. Having said that, if that Lacie hard disk drive is your one and only one backup drive, consider getting an additional one. Any backup is better than none, but having only one backup drive for Time Machine does not comprise a robust backup strategy. TM will back up to as many additional drives as you wish to provide.

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Question marked as Top-ranking reply

Mar 22, 2023 1:14 PM in response to laurieu811

If it is the first Time Machine backup since upgrading to Ventura, then it is normal for it take a long time.


If Time Machine takes a long time to back up - Apple Support is not very good at explaining the reason, except for the brief passage "Time Machine backs up only the changes since your last backup, ..." That includes changes that arise as a consequence of upgrading macOS, which can be extensive.


Give it a day or two to settle down before drawing any conclusions. Having said that, if that Lacie hard disk drive is your one and only one backup drive, consider getting an additional one. Any backup is better than none, but having only one backup drive for Time Machine does not comprise a robust backup strategy. TM will back up to as many additional drives as you wish to provide.

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My rugged lacie external hard drive is taking many hours to back up my computer

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