Carbon Copy Cloner… Clone, synchronize, backup. Schedule and forget it. Try it ’til you trust it.
In its simplest form, CCC will clone one hard drive to another, copying every single block or file to create an exact replica of your source hard drive. This is very useful if, for example, your laptop is damaged and you must send it in for repair.
CCC can also be used to perform regular backups of your data. When you select a source disk in CCC, you are presented with the contents of that disk (hidden items too). Simply uncheck the items that you do not want to backup, and CCC will provide ample indication what will and will not be copied. Select a target disk to which you would like to backup, then press the clone button.
The key to a successful backup plan is to actually do the backups regularly. When left to a human, the task often gets tacked on to the end of a very long list of other things to do. When you eventually have a catastrophe, the data is simply gone. You know that feeling — you just lost six years of family photos. Your kids being born, their first birthdays, their first everything. The answer to this is consistent and regular backups, placed on a schedule and handled automatically by your computer. CCC includes that functionality, and takes it even further.

What’s new:

Version 3.1.1:

• Included version 3.0.3 of rsync (minor bug fixes).
• Fixed a bug in which clicking “Proceed” when plugging in a target volume does not cause the scheduled task to proceed if that task is scheduled to back up only when the target drive is reattached.
• Fixed a bug in which extended attributes on a file would not be preserved if that file was locked on the source volume (only affected the “Backup everything” backup method).
• Fixed an issue in which CCC would not report success if minor errors were encountered. Upon encountering minor errors, CCC now reports that the backup task completed, but encountered errors. This also permits any post-backup tasks to occur, such as blessing the target volume and running post-backup scripts.
• Fixed an issue in which deferred tasks would run late if the machine slept.
• Fixed an issue in which the CCC application would not launch if it was initially installed by another user on the system.
• For the “Backup everything” cloning method, CCC no longer defaults to erasing the target device. CCC will warn if an existing OS installation on the target may conflict with the installation that is being backed up.
• Implemented support for block-level cloning to a disk image (when the source volume can be unmounted) and improved the performance of file-level backups to a disk image. These changes represent a 2-5x performance improvement.
• Disk image segmenting now works as advertised.
• Resolved an issue in which choosing to encrypt a disk image would cause CCC to hang on Leopard.

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