Generally, booting from an external drive will be slower, even with new Thunderbolt and USB-C drives.
Those are still much slower than the solid state drives SSDs found in most new Macs. But, if you choose your external drive as the restore target, you can flip that action around and copy files from your main drive to the backup.
Clone HD with Disk Utility (Download Mac Hard Drive Cloning software)
When Disk Utility is done, you can shut down your Mac and hold down Option when booting it back up. This brings up the boot switcher and lets you boot from the external hard drive. You can do the same process in reverse if you need to copy the files back over, or restore the backup should your computer decide to break.
The Best Tech Newsletter Anywhere. Join , subscribers and get a daily digest of news, comics, trivia, reviews, and more. If the drive with many of your extremely important business documents and personal files fail, the loss is simply beyond explanation.
However, you can easily overcome such situations of data loss by keeping a clone copy of your Mac hard drive. This option in Disk Utility allows you to copy the entire data of your hard disk to another hard drive or any external media.
How to Clone Mac OS X to a New Hard Drive | Low End Mac
The process of backing up data using Disk Utility is simple and can be performed in few easy steps as below:. Note: The backup copy created using Disk Utility is not bootable.
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This Backup copy is a disk image from which you can easily restore the entire data of your source Mac drive. However, if you want to create a bootable clone of your Mac hard drive, you can use Stellar Drive Clone software. Stellar Drive Clone is a Mac Hard Drive Cloning software, using which you can create an exact clone of your Mac hard drive so that in case of drive failure, you can continue your on-going works by booting from the same.
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