[..'] objcguy’s scribble.


Time Machine capacity bug and its workaround.
January 5, 2008, 8:07 am
Filed under: Scribble of the day

I found a bug in Time Machine, Apple’s back up solution for mere mortal.

My PowerMac G5 has a 1TB internal drive, so with the help of Boxing day frenzy, I picked up a matching 1TB external hard drive for Time Machine. Unwrapped it, plugged it in, and gave it a go. Both drives have exactly the same storage size; but Time Machine refused to start saying there’s not enough storage. Duh.

Interestingly, when I added half of the contents of the drive to exclusion list, finished the initial back up process, and removed the rest half from the exclusion list, Time Machine backed up the whole drive just fine. Obviously there’s a bug in Time Machine’s necessary storage estimation code, or it’s at least very inaccurate.

I guess this is probably one of the million of blog enties on the internet that complains about various shortcomings of Time Machine, but I just hope that it’s get improved significantly before 10.6, which probably won’t be released within 2 years from now.

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