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I moved to using an external disk (a Drobo) on 1 machine as a Time Machine backup for all of my machines. I've got 2 of the machines backing up perfectly, but the problem is with the machine that the drive is connected to.

When I start the backup of the directly connected machine, Time Machine creates the folder structure /Backups.backupdb/[computer name]/ instead of just creating another sparsebundle file.

Should I care? If yes, then how do I make Time Machine create a sparsebundle?

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The sparsebundle is how Time Machine backs up using the network method. The Backups.backupdb method is how it backs up when the drive is hooked up locally therefore you can't make it create a sparse bundle if its connected locally because that's the way time machine works. If you want it to make a sparse bundle you have to backup through a network. It should not make a difference to you since you'll be accessing it through time machine without having to worry about files etc.

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This is what I thought, but how do I get the machine that's connected directly (FireWire atm) to create a .sparsebundle file? –  Darryl Hein Jul 29 '11 at 4:25
    
It is supposed to create it on its own when you first backup our machine on that particular disk –  Samantha Catania Jul 29 '11 at 5:11
    
Okay...so, now that it isn't, where should I look? –  Darryl Hein Jul 29 '11 at 7:06
    
make sure you don't have machines with same name, it should be in the device you selected to make the backup to. –  Samantha Catania Jul 29 '11 at 7:15
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You can't make it create a sparse bundle if its connected locally because that's the way time machine works. If you want it to make a sparse bundle you have to backup through a network. It should not make a difference to you since you'll be accessing it through time machine without having to worry about files etc. –  Samantha Catania Jul 29 '11 at 8:12
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