There are multiple reasons for you to backup mac to external hard drives, either for file security, saving space or keeping privacy:
Sum it up, no matter for what reason, you need to backup your Mac to external hard drive. If you don’t know how to do it, follow the guide below:
It is much wiser to back up single files from Mac to external hard drive, because whenever you need a file, you can check out it from the external hard drive right away. Basically, you can do it by copying & pasting files one-by-one from Mac to the external hard drive. It is quite easy and simple to copy and paste files from Mac to the external hard drive, but it takes a long time and needs your patient. Most important of all, you need to be clear where the target files are.
Time Machine is the built-in feature on Mac for users to backup files hourly for the last 24 hours. The old backup files will be deleted when the storage is full. You can backup Mac to external hard drive with Time Machine if you want to restore your Mac with the backup later. Here are the simple steps:
Step 1. Connect the external hard drive with your Mac firmly, making sure your Mac can detect the external hard drive. Generally, when connected successfully, a pop-up will appear, asking you whether to use the drive to back up with Time Machine or not. Please check "Encrypt Backup Disk" and select "Use as Backup Disk".
If no window like this pop up after connecting the external hard drive with your Mac, please click the Apple logo on the top left side of Mac > System Preferences > click Time Machine. Next, click "Select Backup Disk, Select Disk, or Add or Remove Backup Disk." After then, select a backup disk from the list, then click "Use Disk".
You have successfully set up using the external hard drive to backup your Mac with Time Machine. After then, it will backup your Mac to the external hard drive automatically. To make sure the success of backing up Mac to the external hard drive with Time Machine, I suggest you do it manually: choose "Back Up Now from the Time Machine menu", then it begins to back up. For the first backup, it may take longer. It fully depends on the scale of your files on Mac.
If you haven’t backed up the important files from Mac to external hard drive and lost them accidently, there is still a chance to recover them with the help of iBeesoft Data Recovery for Mac. It is a professional and trustworthy tool specially developed to help users to get back lost and deleted files. Here are the simple steps for how to use iBeesoft Data Recovery to recover lost and deleted files on Mac.
Step 1. Download and install iBeesoft Data Recovery on your Mac. It is a standalone tool, which is able to work separately, no extra tool is needed at all. Feel free to use it, it is virus-free.
Step 2. Select the file types you want to recover from your Mac to external hard drive. By default, all supported files are checked. You need to ensure the unwanted ones are unchecked. It will save you time for the scanning process. Click "Start".
Step 3. Select the partition where your lost files were stored and click "Scan".
Step 4. After the scanning process, filter out the wanted files by selecting the file type in the left side with its extension. Select the files you want to retrieve to the external hard drive and click "Recover", saving them to your Mac or the external hard drive on Mac.