![]() |
Antivirus software may interfere with a backup |
||
Some antivirus applications may prevent Carbon Copy Cloner from reading certain files, mounting or unmounting disk image files, or, in general, degrade the performance of your backup. In some cases, antivirus applications can even affect the modification date of files that CCC has copied, which will cause CCC to recopy those files every time as if they have substantively changed. In another case, we have seen such software create massive cache files on the startup disk during a backup, so much so that the startup disk became full. We recommend that you temporarily disable security software installed on your Mac (e.g. for the duration of your backup task) if problems such as these arise.
If you experience problems copying files and note that error messages such as "Operation not permitted" are reported in relation to the problem:
- Determine whether the files in question are being quarantined by your antivirus software. Perform a system scan with your antivirus software and address any issues that are reported. Please refer to the Help documentation associated with your antivirus product for more information.
- If the problem persists, try running your backup task with the antivirus software temporarily disabled.
If these steps do not address the issue, or if you do not have antivirus software installed, please start a discussion in the Discussions area of the Help Desk.