Time Machine is a built in backup utility for Mac OS X users. It provides easy backup and restoration abilities for users convenience. However sometimes it happens that users are unable to use this amazing feature due to Time Machine error 111. It is a conmon issue which is mainly caused by corruption. Reasons like power fluctuation, virus infection, abrupt termination of Time Machine, damaged backup data, missing or deleted file system etc are the most probable causes behind occurrence of this very error. In such situation due to Time Machine error 111, none of the Time machine capsule features work properly and users can't even backup or restore their data. However in order to fix this issue you can try Disk Utility. It is used to fix minor corruption issue related to Mac system. But if you are facing any severe corruption and Disk utility fails to troubleshoot Time Machine error 111 then in such situation you will need to format your entire Mac system. Formatting will simply remove all the corruption completely from your system. While doing so all your files will also get erased from hard drive. But once Time Machine error 111 get fixed then you can easily get back all your files using Mac Data Recovery Software.