Available after the launch in the right part of your menu bar.
Fast Copy Mac And AndWe use only Apple native technology to create macOS apps because we love the Mac and and we love pure true macOS apps.In my testing, both apps functioned impeccably, copying everything exactly as they claimed they would, including all the finicky OS X metadata, permissions, and links.Tools such as Apples Time Machine, included as part of OS X, make it easy to store multiple versions of every file from your computer on an external drive or an AirPort Time Capsule.And if you want the security of off-site backups without having to physically move drives around, an online backup provider such as CrashPlan is a good option. ![]() To learn more about designing a solid backup strategy, see Backup basics: The quick, something-is-better-than-nothing backup system and Bulletproof backups: When you absolutely cant lose any data.). What a clone offers that the likes of Time Machine and CrashPlan do not is immediate recovery: You can get back to work almost instantly after a drive crash or other severe problem with your startup volume. You simply attach your clone drive, restart while holding down the Option key, select the clone drive in OS Xs Startup Manager, and press Return. A few moments later, youre back up and runningand you can then repair (or replace) your main startup drive more or less at your leisure. By contrast, even though Time Machine also backs up every file on your drive, restoring all those files to a new drive takes hours (or possibly days); restoring an entire drive from an online backup service takes even longer. A clone also comes in handy for troubleshooting, because you can use it to run third-party utilities on your ailing drive. Your Macs built-in OS X Recovery features include Disk Utility, but sometimes you need a drive-repair app with more oomph.) Finally, having a clone is essential when upgrading to a new version of OS X, because it gives you the option to easily revert to your previous system (by erasing your upgraded-OS drive and then restoring from the clone) if compatibility problems arise. Unfortunately, you cant make a clone merely by copying files from your startup volume to an external drive in the Finder. Every file on your driveincluding thousands of hidden filesmust be copied just so, with permissions and other metadata intact. ![]() And, crucially, the System folder (System) on the backup drive must be blessed, which entails recording its physical location on the drive in a special portion of the drives hidden HFS Volume Header. For more details, read Mike Bombichs article What makes a volume bootable ) All this is best done with a utility designed expressly for cloning. More than two dozen third-party backup apps can make bootable duplicates. You can see a list in the online appendix to my book Take Control of Backing Up Your Mac.) Its also possible (if not especially convenient) to clone a drive using Disk Utility or by using the diskutil command in Terminal. ![]() Each has a long history, focuses on cloning, presents a simple and clear user interface, and includes unusual features that make it an especially good choice for creating and maintaining bootable duplicates. For everyday cloning tasks, SuperDuper and Carbon Copy Cloner are equally good in almost every respect, and they have a core set of features in common. In both apps, you choose a source drive (say, your startup volume) from a pop-up menu on the left, a destination drive (your clone-backup volume) from a pop-up menu on the right, and any desired options using additional pop-up menus or buttons. Each utility provides a plain-English summary of whats about to happen; you then click a button to begin the copying operation. Fast Copy Update Your CloneBoth apps give you the option to erase the destination before copying files from the source; or to update your clone incrementally to reflect only those files that are new, changed, or deleted since the previous cloning run. Fast Copy Free Trial VersionThe free trial version of SuperDuper disables the incremental update feature, which Shirt Pocket calls Smart Update.) Both also let you deselect specific files, folders, or filename patterns to omit them from your backup, although they have very different interfaces for doing soI find this task much easier to accomplish in Carbon Copy Cloner than in SuperDuper. In addition to using an actual drive as the destination, each app can copy the source volume to a disk image (which wont itself be bootable, but which can be restored to a drive that will then become bootable); you can choose from among several disk-image formats, with or without compression. Carbon Copy Cloner also offers encryption for disk images, while SuperDuper lets you choose from three levels of compression. Likewise, you can use either app to restore a drive from a disk image. Both apps also let you schedule backups to run unattendedon a recurring schedule, when the destination drive is mounted, or both. For example, I update my iMacs clone twice a day, since its destination drive remains connected all the time, but my MacBook Pros clone updates only when I plug in my backup drive.). Both apps can also perform designated tasksfor example, running shell scripts; ejecting the destination drive on completion; or instructing your Mac to sleep, shut down, or restartbefore or after a cloning operation. In Carbon Copy Cloner, such actions can be specified only for scheduled tasks.).
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