Can TimeMachine backup files that are ON an external disk?

Discussion in 'macOS' started by OCDMacGeek, Oct 27, 2007.

  1. OCDMacGeek macrumors 6502a

    OCDMacGeek

    Joined:
    Jul 19, 2007
    #1
    I keep my iTunes folder on an external drive, because it is too big to keep on my Mac mini's drive, and I really cannot afford to ever lose these files. Is there any way to set up TimeMachine to actually backup these files (which are on an external disk) to a different external disk?

    Thanks for your help.
     
  2. drlunanerd macrumors 65816

    drlunanerd

    Joined:
    Feb 14, 2004
    Location:
    UK
    #2
    Yes, this should work. Attach the drive you want to backup, then in Time Machine preferences, click on Options.. set it to *not* exclude the drive by removing it with the minus button.

    I tried this and it started the backup process. Annoyingly though it stopped and prompted me saying there wasn't enough free disk space on the second external drive I was backing up to, when there was 30GB more than was needed. Time Machine seems to overcompensate when calculating space requirements - I checked the system log and sure enough it's erroneously reporting this.
     

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