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What happens if Mac goes to sleep during Time Machine backup?
when time machine starts backing up and the computer goes into sleep mode, will time machine continue to run? Usually, it won’t go to sleep until the backup is done. But if it does, the backup will be cancelled, and restarted after your Mac wakes up. The next backup may take a bit longer, but will be fine.
Does backup continue in sleep mode?
If your machine is in Hibernate because it was in Sleep for too long, your backup will likely not run. If your machine is on battery — the most common scenario when using Sleep and/or Hibernate — the battery may run out before any backup has completed.
Can a Time Machine backup put a Mac to sleep?
Note that backups can only be performed in this method if your Mac is connected to power. However, this solution will work even during the OP’s problem of manually forcing their Mac to sleep.
What to do when your Mac is in sleep mode?
Backups resume after the computer and backup disk are available again. If your Mac is scheduled to wake from sleep (as noted in @CajunLuke’s answer ), you’d need to create an Automator script to immediately trigger the Time Machine backup upon waking, or wait an hour or so to catch the hourly TM backup.
When to do a time machine back up?
If you leave a half-hour or so between the wake up and sleep times, it should have enough time to back up. I must say, there’s not much point in running a Time Machine backup when you haven’t been using the computer: if you’re not using it, nothing has changed, so there’s nothing new to back up.
How to prevent sleep while a time machine is in?
Try Mac app called “Caffeine” it keeps your mac on for a time period or indefinitely. I had the same problem, so I turned off my sleep function, password, and also checked ‘prevent computer going to sleep when the display is off’. I am hoping this works.