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How to Backup Mac Using Time Machine

By: Waseem Patwegar

The easiest way to Backup all your Documents, Photos, Music and Apps on Mac to an External storage device is to use the built-in Time Machine Utility as available in macOS.

Backup Mac Using Time Machine

Backup Mac Using Time Machine

When Time Machine Backups are enabled on Mac, it starts automatically backing up all documents, photos, music and apps to an External Storage Device.

Once the first Backup is completed, Time Machine keeps updating the Backup by scanning your computer for new, revised and deleted files on an hourly basis.

If enough storage space is available, Time Machine keeps hourly backups for the past 24 hours, daily backups for the past month and weekly backups for all previous months.

If the External Storage device runs out of space, Time Machine automatically deletes the older backups to create storage space for daily backups.

Storage Drive for Time Machine Backup

Time Machine can practically backup to any Storage Device connected to USB, Thunderbolt or the FireWire Port of your Mac.

If the attached Storage Drive is not in the right format, Time Machine will prompt you to Format the Drive.

To make the best use of Time Machine Backups, the storage capacity of External Drive should at least match the storage capacity of the Hard Drive on your Mac.

This will allow Time Machine to store multiple versions of data, which in-turn will allow you to go back in time and recover files before you made any changes to them.

Note: Time Machine can also be setup to backup data wirelessly to Network-attached storage devices or to another Mac on the same Network.

What is Not Included in Time Machine Backup?

According to Apple, Time Machine should automatically backup all the files on Mac that were not part of macOS installation, such as documents, photos, music and Apps.

Going by user experiences, Time Machine skips the Index database in Photo Library, which can lead to problems while Restoring Data from a Time Machine Backup.

Hence, it is recommended that you also make a manual Backup of Photos to an External Hard Drive.

How to Enable Time Machine Backup on Mac

Connect External Storage Drive to Mac and follow the steps below to Enable Machine Backups on your Mac.

1. Click on the Apple Logo in top-menu bar and select System Preferences in the drop-down menu.

Open System Preferences on Mac

2. On System Preferences screen, click on Time Machine option.

Time Machine Option on System Preferences Screen

3. On Time Machine screen, click on Select Backup Disk… button.

Time Machine Settings Screen on Mac

Note: Make sure you select Show Time Machine in Menu bar option.

4. On the next screen, select the External Hard Drive connected to your Mac and click on Use Disk button.

Select External Hard Drive For Time Machine Backups on Mac

Note: Make sure Back Up Automatically option is selected.

5. If the Format of attached Hard Drive is incompatible with macOS, you will be prompted to Erase the Disk.

Erase Disk Prompt During Time Machine Setup on Mac

6. Patiently Wait for all the Files on your Mac to be saved to the External Drive. The time to complete the first Backup can be long.

After the first Backup, Automated Time Machine Backups will continue in the background, as long as the External Hard Drive is connected to Mac.

Advantages of Time Machine Backups

Most Data backup solutions are based on making a backup of the whole system. The benefit of Apple’s Time Machine Backups is that it makes a backup of the entire Data on your computer only for the first time.

After the first backup, Time Machine copies only New & Revised files, instead of making a copy of all the data on your Mac, all over again. This ensures that Time Machine Backups are quick and do not waste resources.

Also, Time Machine makes it really easy to recover all or selected files from a specific point in time.

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