Time Machine do not hourly backups on WD My Book for Mac new

My 1 TB time capsule was too small for the full backup so I just bought a 6 new to WD "My Book for Mac" and have now a new back up, but it won't backup time as usual. I am running OS X El Capitan 10.11.6 Can anyone who thinks that the reason for what I fear not having a reliable backup. The problem with the new hard drive external or is - a problem with EL Capitan?

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Hello Arnaud,.

Thank you for using communities of Apple Support. It is my understanding that Time Machine was not back up as expected. I certainly understand how it is important to be able to back up your content. I'm happy to help you.

There are several factors that could influence the automatic backup. Please follow the steps in the link below to fix this problem:

If you cannot back up or restore your Mac with Time Machine

In addition to these measures, hourly backups could be affected by your sleep Macs and power Nap settings, depending on which Mac you use. To ensure that your hourly backups are finished, set your Mac sleep to a longer period time. For testing purposes, try to set the duration of sleep at least 1 hour. You can do this in system preferences > energy saver.

In addition, if you use a portable Mac, make sure that it is connected to power during the tests to see if hourly backups work. See the link below to view information on how Power Nap works and how it can affect Time Machine.

How Power Nap works on your Mac

Keep in mind, that Time Machine backs up only files that have changed since the last backup.

Have an amazing day!

Tags: Mac OS & System Software

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