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To use Time Machine to make a backup of your Mac, you need any of these types of storage devices:
- External drive connected to an AirPort Extreme Base Station (802.11ac) or AirPort Time Capsule
After setting up the storage device, you can use Time Machine to make a backup of your Mac. And after making your backup, you can use Time Machine to restore files from your backup.
External drive connected to your Mac
Time Machine can back up to an external drive connected to a USB, Thunderbolt, or FireWire port on your Mac.
External drive connected to an AirPort Extreme Base Station (802.11ac) or AirPort Time Capsule
Time Machine can back up to an external USB drive connected to an AirPort Extreme Base Station (802.11ac model) or AirPort Time Capsule.
- Make sure that the USB drive is formatted for Time Machine.
- Connect the drive to a USB port on your AirPort base station, then turn it on.
- Open AirPort Utility, then select your base station and click Edit to view its settings.
- Click the Disks tab in the settings window.
- Select your backup disk from the list of partitions, then select ”Enable file sharing”:
- If more than one user on your network will back up to this disk with Time Machine, you can use the Secure Shared Disks pop-up menu to make sure that they can view only their own backups, not yours. Choose ”With accounts” from the menu, then click the Add (+) button to add users.
- Click Update to restart your base station and apply the settings.
AirPort Time Capsule
Time Machine can back up to the built-in hard disk of an AirPort Time Capsule on your network.
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Mac shared as a Time Machine backup destination
To use another Mac on your network as a Time Machine backup destination, complete these steps on the other Mac:
- Choose Apple menu > System Preferences, then click Sharing.
- From the list of services on the left, select File Sharing.
- From the list of Shared Folders on the right, Control-click the folder that you want to use for Time Machine backups.
- From the shortcut menu that opens, choose Advanced Options.
- From the Advanced Options dialog, select ”Share as a Time Machine backup destination.”
When setting up Time Machine on your other Mac computers, you should now be able to select the shared folder as a backup disk.
Network-attached storage (NAS) device that supports Time Machine over SMB
Many third-party NAS devices support Time Machine over SMB. For details, check the documentation for your NAS device.
How to format a disk for Time Machine
Time Machine supports all Mac OS Extended (Journaled) formats and Xsan formats. If the disk isn't using the correct format, Time Machine automatically prompts you to erase it when you connect it to your Mac:
If you need to erase the disk manually, use the Disk Utility app to erase using the Mac OS Extended (Journaled) format.
Time Machine can't back up to an iOS device or disk formatted for Windows. And if your disk uses the Master Boot Record (MBR) partition scheme, some of its partitions might not be available for use with Time Machine.
Choose a backup method
Before you get started, learn the difference between iCloud backups and backups you make using your computer, then choose the method that's best for you. If you need an alternative backup, you can make one in iCloud and another using your computer.
How to back up with iCloud
- Connect your device to a Wi-Fi network.
- Go to Settings > [your name], and tap iCloud.
- Tap iCloud Backup.
- Tap Back Up Now. Stay connected to your Wi-Fi network until the process completes.
You can check the progress and confirm the backup completed. Go to Settings > [your name] > iCloud > iCloud Backup. Under Back Up Now, you'll see the date and time of your last backup.
Get help making a backup or manage your available space in iCloud.
Automatically back up with iCloud Backup
To let iCloud automatically back up your device each day, here's what you need to do:
- Make sure that iCloud Backup is turned on in Settings > [your name] > iCloud > iCloud Backup.
- Connect your device to a power source.
- Connect your device to a Wi-Fi network.
- Make sure that your device's screen is locked.
- Check that you have enough available space in iCloud for the backup. When you sign in to iCloud, you get 5GB of iCloud storage for free. If you need more iCloud storage, you can buy more from your iPhone, iPad, iPod touch, or Mac. Plans start at 50GB for $0.99 (USD) a month. Learn more about prices in your region.
How to back up with your computer
- Connect your device to your computer. On a Mac with macOS Catalina 10.15, open Finder. On a Mac with macOS Mojave 10.14 or earlier, or on a PC, open iTunes.
- If a message asks for your device passcode or to Trust This Computer, follow the onscreen steps. If you forgot your passcode, get help.
- Locate your device on your computer. If your device doesn't appear on your computer, learn what to do.
- If you want to save Health and Activity data from your device or Apple Watch, you need to encrypt your backup: Select the box called Encrypt [device] backup and create a memorable password. If you don't need to save your Health and Activity data, you can make a backup that isn't encrypted. Just click Back Up Now.
Write down your password and store it somewhere safe, because there's no way to recover your iTunes backups without this password. - When the process ends, you can see if the backup finished successfully.
Learn more
Wireless Backup Disk For Mac
- Restore your device from a backup.
- Get help with iCloud backups or iTunes backups.
- Manage your backups.