If you read my previous post about how to format an external drive for Mac, you know that I bought a 2TB Seagate Expansion external hard drive and managed to create two partitions on the disk — one for Mac backup purposes, and the other for personal use.
The easiest way to back up is to use Time Machine—which is built into your Mac—to back up your apps, accounts, preferences, music, photos, movies, and documents (it doesn't back up the macOS operating system). Use Time Machine to back up to an external storage device connected to your MacBook Air, or to a supported network volume. Apple includes its own backup software, Time Machine as part of the macOS. It's an exceptionally easy to use solution. All you need to do is plug in an external storage device, hard drive or SSD.
In this article, I'm going to show you how to back up your Mac data to an external drive. You should back up your Mac on a regular basis, especially if you're planning to perform macOS updates.
I did this several weeks ago while preparing my MacBook Pro for a system update. You may also be interested in taking a look at the macOS Catalina slow issues we encountered during that process just in case you also want to upgrade your Mac to the latest operating system.
Please note that the backup tool that I used is Time Machine, a built-in app provided by Apple. If you want to back up your Mac data without using Time Machine, there are also other third-party Mac backup software worth considering.
Where is Time Machine on Mac?
Time Machine is a built-in app within macOS ever since OS X 10.5. To find it, click on the Apple logo on the top left corner of your screen, then select System Preferences.
In the Preferences Pane, you'll see the app located between 'Date & Time' and 'Accessibility'.
What does Time Machine Backup?
Time Machine is the easiest way to back up Mac. And the app is created and recommended by Apple. Once you have a timely backup, it's incredibly easy to restore all or part of your data in case of accidental deletion or a hard drive crash.
So, what kind of data does Time Machine backup? Everything!
Photos, videos, documents, applications, system files, accounts, preferences, messages, you name it. They all can be backed up by Time Machine. You can then restore your data from a Time Machine snapshot. To do so, first open Finder, then Applications, and click on Time Machine to continue.
Be aware that the recovery process can be only be conducted when your Mac can start up normally.
A Step-by-Step Guide to Backing up Mac to an External Hard Drive
Note: the screenshots below are taken based on an older macOS. If your Mac is running Mojave or Catalina, they will look slightly different but the process should be similar.
Step 1: Connect your external hard drive.
First, use the USB cable (or USB-C cable if you're on the newest Mac model with Thunderbolt 3 ports) that comes with your external drive to connect that drive to your Mac.
Once the disk icon shows up on your desktop (if it doesn't, open Finder > Preferences > General, and here make sure you've checked 'External disks' to let them show on the desktop), move on to Step 2.
Step 2: Select the disk for backup.
Now open Time Machine (I tell you how above) and select the disk you want to use. I have partitioned my Seagate drive into two new volumes, 'Backup' and 'Personal Use', as you see from the screenshot. I chose 'Backup'.
Step 3: Confirm backup (optional).
If you have used another disk for backup before, Time Machine will ask you whether you want to stop backing up to the previous disk and use the new one instead. It's up to you. I selected 'Replace'.
Step 4: Wait until the process is complete.
Now Time Machine will start to backup all your data. The progress bar gives you an estimate of how much time is left before the backup is complete. I found it a bit inaccurate: Initially, it said 'About 5 hours remaining', but it only took two hours to finish. It's worth noting that the remaining time may vary from case to case depending on the write speed of your external hard drive.
Adobe standard software. After about an hour and a half, it says only 15 minutes remaining
Step 5: Eject your external drive and unplug it.
When the backup procedure is completed, don't rush to disconnect your device as this could cause potential disk problems. Instead, go back to the main desktop, locate the volume that your external hard drive represents, right-click and select Eject. Then, you can safely unplug the device and put it in a safe place.
How To Backup Entire Macbook Pro
Final Words
Like any other hardware device, an external hard drive will fail sooner or later. It's best to make a copy of the data on your external drive — as they say, a 'backup of your backups'!
How To Backup Iphone On Macbook Air
One good option is to use cloud storage services like iDrive which I've been using and I really like the app because it's super easy to use, and it also allows me to download Facebook photos automatically. Backblaze and Carbonite are also popular options in the market, though I am yet to give them a try.
I hope you find this tutorial helpful. I can't emphasize enough the importance of data backup these days, especially when my mid-2012 MacBook hard drive died all of a sudden. I've also seen cases where my friend's computer and hard drive failed. You can imagine their desperation. Without a proper backup, it's really hard to restore data. Although you could try a third-party data recovery program, chances are they won't get all your lost data back.
Anyway, the main takeaway I want you to have from this article is this: back up your Mac with Time Machine or another app, and create a second or third copy of those backups if you can.
Use Time Machine, the built-in backup feature of your Mac, to automatically back up your personal data, including apps, music, photos, emails and documents. Having a backup allows you to recover files that have been deleted or were lost because the hard disk (or SSD) in your Mac needed to be erased or replaced. Find out how to restore your Mac from a backup.
Create a Time Machine backup
To create backups with Time Machine, all you need is an external storage device. After you've connected the storage device and selected it as your backup disk, Time Machine will automatically make hourly backups for the past 24 hours, daily backups for the past month and weekly backups for all previous months. The oldest backups will be deleted when your backup disk is full.
Connect an external storage device
Connect one of the following external storage devices, sold separately. Find out more about backup disks that you can use with Time Machine.
- External drive connected to your Mac, such as a USB or Thunderbolt drive
- Network-attached storage (NAS) device that supports Time Machine over SMB
- Mac shared as a Time Machine backup destination
- AirPort Time Capsule, or external drive connected to an AirPort Time capsule or AirPort Extreme Base Station (802.11ac)
The easiest way to back up is to use Time Machine—which is built into your Mac—to back up your apps, accounts, preferences, music, photos, movies, and documents (it doesn't back up the macOS operating system). Use Time Machine to back up to an external storage device connected to your MacBook Air, or to a supported network volume. Apple includes its own backup software, Time Machine as part of the macOS. It's an exceptionally easy to use solution. All you need to do is plug in an external storage device, hard drive or SSD.
In this article, I'm going to show you how to back up your Mac data to an external drive. You should back up your Mac on a regular basis, especially if you're planning to perform macOS updates.
I did this several weeks ago while preparing my MacBook Pro for a system update. You may also be interested in taking a look at the macOS Catalina slow issues we encountered during that process just in case you also want to upgrade your Mac to the latest operating system.
Please note that the backup tool that I used is Time Machine, a built-in app provided by Apple. If you want to back up your Mac data without using Time Machine, there are also other third-party Mac backup software worth considering.
Where is Time Machine on Mac?
Time Machine is a built-in app within macOS ever since OS X 10.5. To find it, click on the Apple logo on the top left corner of your screen, then select System Preferences.
In the Preferences Pane, you'll see the app located between 'Date & Time' and 'Accessibility'.
What does Time Machine Backup?
Time Machine is the easiest way to back up Mac. And the app is created and recommended by Apple. Once you have a timely backup, it's incredibly easy to restore all or part of your data in case of accidental deletion or a hard drive crash.
So, what kind of data does Time Machine backup? Everything!
Photos, videos, documents, applications, system files, accounts, preferences, messages, you name it. They all can be backed up by Time Machine. You can then restore your data from a Time Machine snapshot. To do so, first open Finder, then Applications, and click on Time Machine to continue.
Be aware that the recovery process can be only be conducted when your Mac can start up normally.
A Step-by-Step Guide to Backing up Mac to an External Hard Drive
Note: the screenshots below are taken based on an older macOS. If your Mac is running Mojave or Catalina, they will look slightly different but the process should be similar.
Step 1: Connect your external hard drive.
First, use the USB cable (or USB-C cable if you're on the newest Mac model with Thunderbolt 3 ports) that comes with your external drive to connect that drive to your Mac.
Once the disk icon shows up on your desktop (if it doesn't, open Finder > Preferences > General, and here make sure you've checked 'External disks' to let them show on the desktop), move on to Step 2.
Step 2: Select the disk for backup.
Now open Time Machine (I tell you how above) and select the disk you want to use. I have partitioned my Seagate drive into two new volumes, 'Backup' and 'Personal Use', as you see from the screenshot. I chose 'Backup'.
Step 3: Confirm backup (optional).
If you have used another disk for backup before, Time Machine will ask you whether you want to stop backing up to the previous disk and use the new one instead. It's up to you. I selected 'Replace'.
Step 4: Wait until the process is complete.
Now Time Machine will start to backup all your data. The progress bar gives you an estimate of how much time is left before the backup is complete. I found it a bit inaccurate: Initially, it said 'About 5 hours remaining', but it only took two hours to finish. It's worth noting that the remaining time may vary from case to case depending on the write speed of your external hard drive.
Adobe standard software. After about an hour and a half, it says only 15 minutes remaining
Step 5: Eject your external drive and unplug it.
When the backup procedure is completed, don't rush to disconnect your device as this could cause potential disk problems. Instead, go back to the main desktop, locate the volume that your external hard drive represents, right-click and select Eject. Then, you can safely unplug the device and put it in a safe place.
How To Backup Entire Macbook Pro
Final Words
Like any other hardware device, an external hard drive will fail sooner or later. It's best to make a copy of the data on your external drive — as they say, a 'backup of your backups'!
How To Backup Iphone On Macbook Air
One good option is to use cloud storage services like iDrive which I've been using and I really like the app because it's super easy to use, and it also allows me to download Facebook photos automatically. Backblaze and Carbonite are also popular options in the market, though I am yet to give them a try.
I hope you find this tutorial helpful. I can't emphasize enough the importance of data backup these days, especially when my mid-2012 MacBook hard drive died all of a sudden. I've also seen cases where my friend's computer and hard drive failed. You can imagine their desperation. Without a proper backup, it's really hard to restore data. Although you could try a third-party data recovery program, chances are they won't get all your lost data back.
Anyway, the main takeaway I want you to have from this article is this: back up your Mac with Time Machine or another app, and create a second or third copy of those backups if you can.
Use Time Machine, the built-in backup feature of your Mac, to automatically back up your personal data, including apps, music, photos, emails and documents. Having a backup allows you to recover files that have been deleted or were lost because the hard disk (or SSD) in your Mac needed to be erased or replaced. Find out how to restore your Mac from a backup.
Create a Time Machine backup
To create backups with Time Machine, all you need is an external storage device. After you've connected the storage device and selected it as your backup disk, Time Machine will automatically make hourly backups for the past 24 hours, daily backups for the past month and weekly backups for all previous months. The oldest backups will be deleted when your backup disk is full.
Connect an external storage device
Connect one of the following external storage devices, sold separately. Find out more about backup disks that you can use with Time Machine.
- External drive connected to your Mac, such as a USB or Thunderbolt drive
- Network-attached storage (NAS) device that supports Time Machine over SMB
- Mac shared as a Time Machine backup destination
- AirPort Time Capsule, or external drive connected to an AirPort Time capsule or AirPort Extreme Base Station (802.11ac)
Select your storage device as the backup disk
- Open Time Machine preferences from the Time Machine menu in the menu bar. Or choose Apple menu > System Preferences, then click Time Machine.
- Click Select Backup Disk.
- Select your backup disk from the list of available disks. To make your backup only accessible to users who have the backup password, you can select 'Encrypt backups'. Then click Use Disk:
If the disk you've selected hasn't been formatted as required by Time Machine, you'll be prompted to erase the disk first. Click Erase to proceed. This will erase all of the information on the backup disk.
Enjoy the convenience of automatic backups
After you've selected a backup disk, Time Machine will immediately start making periodic backups – automatically and without any further action needed by you. The first backup may take a long time, but you can continue using your Mac while a backup is underway. Time Machine only backs up the files that have changed since the previous backup, so future backups will be faster.
To start a backup manually, choose Back Up Now from the Time Machine menu in the menu bar. Use the same menu to check the status of a backup or skip a backup in progress.
Macbook Online Backup
Learn more
Backup Macbook Pro
- Find out about other ways to back up and restore files
- If you back up to multiple disks, you can press and hold the Option key, then choose Browse Other Backup Disks from the Time Machine menu.
- To exclude items from your backup, open Time Machine preferences, click Options, then click the add (+) button to add an item to be excluded. To stop excluding an item, such as an external hard drive, select the item and click the remove (–) button.
- If you're using Time Machine to back up to a network disk, you can verify those backups to make sure they're in good condition. Press and hold Option, then choose Verify Backups from the Time Machine menu.
