Local Backup : Enabling File Sharing on a PC : Making Mac OS Computers Accessible to Clientless Backup
  
Making Mac OS Computers Accessible to Clientless Backup
If your computer runs Mac OS, you must configure it to be accessible to Clientless Backup; otherwise the computer will not appear in Clientless Backup.
To make a Mac OS computer accessible to Clientless Backup:
1 Go to System Preferences > Sharing.
2 Click Options.
A window is displayed.
3 Select the Share files and folders using SMB check box.
4 Click Done.