Whether or whether Time Machine automatically backs up your Mac, creating a full duplicate (a clone or mirror) of its data prior to installing macOS updates or upgrades is a smart practice. Carbon Copy Cloner 6 (£29.90, bombich.com) may create a one-time clone or scheduled backups in addition to, or instead of, Time Machine, and prior versions are compatible with Mojave and earlier.
Catalina and Big Sur alter the way a clone is restored. Rather of cloning back to your internal storage from the copy, it is preferable to install macOS and then migrate from the copy, which is the only method for M1 Macs. This eliminates the need to clone the System volume, which saves space; however, CCC may still do so if desired.
CCC offers a plethora of choices. We demonstrate how to get the most out of them by omitting things that should be copied individually and creating snapshots for rapid file recovery. Whichever method you choose, verify that your clone works by restoring test items.
HOW TO CORRECTLY clone YOUR MAC
1 Adjust the loudness of the source
Select Tasks in the sidebar of Carbon Copy Cloner and give the new, empty backup task a name. To make your Mac’s starting drive, by default called Macintosh HD, the source for your clone, click on the Source icon and choose it.
2 Determine the final destination
Take note of the utilized space on your source volume and ensure that the destination volume has enough free space to store it. Then, click the Destination button and choose a volume with sufficient free space to accommodate the clone.
3 Decide whether or not to repeat
If you want this cloning to be repeated automatically, click on Automation and specify the scheduling basis. Generally, a daily clone is preferable for backups and when the disk is remounted on occasionally connected MacBooks.
4 Specify schedule information
If you leave your Mac running overnight, it’s a good idea to schedule the run time for when it’s not in use. If the machine is going to sleep, you may have the backup job wake it up or postpone it until later. Additionally, you may exclude weekends.
5 Define which things are excluded
At the bottom of the main window, click Task Plan to exclude things from the clone. Consider maintaining distinct copies of large files, such as Virtual Machines, that are continuously changing while in operation.
6 Configure advanced options
CCC has many advanced options, such as executing scripts before and after copying. If you want it to backup while you’re using your Mac, you can now adjust the priority of its copying jobs from this window.
7 Conduct a dry run
Before initiating the initial clone, verify that copying will yield the desired results. When you click the Preview button, CCC will do a dry run without transferring any real files and will predict the precise size. Correct any mistakes immediately.
8 Configure source snapshots
Consider taking pictures on a regular basis. In the sidebar, choose Volumes and then pick the starting data disk called Macintosh HD – Data or simply Data. Turn on CCC for each duplicate of that disk to create a snapshot.
9 Retention of snapshots
The default snapshot retention strategy in CCC should be suitable for the majority of users, since older snapshots may use significant disk space. If you want, click the Customize option to create your own policy, but keep an eye on the amount of space utilized.
ten Duplicate that volume
Once everything is configured, -click the task in the sidebar and use the Run Now command to create the first clone. CCC then displays the clone’s progress graphically and provides an exact time estimate for completion.
11 Examine task activities
When the cloning process is complete, click Task History, pick the completed task, and then click the Task Trends button to see a summary of activities. To initiate a recurring task, click the Start button on the main window.
12 clone of the Optional System
If you want CCC to clone your System disk as well, click on its icon and choose the Legacy Bootable Backup Assistant option before proceeding to step 7.
THIS WILL TAKE TIME
YOU WILL EXPERIENCE
To duplicate files in order to restore them
YOU WILL REQUIRE
macOS 10.15 or later, an external hard drive with enough free space, and Carbon Copy Cloner 6