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If you use an external virtual machine, such as VMware Fusion or Parallels Desktop, to run Windows on your Mac, we recommend excluding it from your Time Machine backups. To save space on your backup drive, exclude items you don’t need to backup. You can change your mind about these at any time by selecting a file and clicking the minus-sign (-) button. In the large Exclude list, you’ll see the folders or individual files that you selected. From there, pick and choose the items you’d like to leave out, and click Exclude when you’re finished. Then click the plus-sign (+) button under the list labeled Exclude these items from backups. Go to the Time Machine preferences pane and click Options.
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A full system backup will begin immediately.Įxclude items you don’t need: If you don’t need to save some items-restaurant takeout menus in your Downloads folder, for example, or miscellaneous screenshots that live on your Desktop-you can select items to omit from your system’s regular backups.
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Your Mac will recognize the added hardware, and a window will appear, asking you whether you want to use the drive to back up with Time Machine. If you already know that your hard drive is compatible, just hook it up.
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If not, you’ll have to reformat the drive: Click the Erase tab, choose Mac OS Extended (Journaled) from the Format pop-up menu, and click Erase.įor more information, see “ How to format a hard drive.”
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If the disk’s Format reads ‘Mac OS Extended (Journaled)’, you’re good to go. At the bottom of the window, you’ll see information about it. In the left-hand column of the Disk Utility window, select the disk that you want to designate as your Time Machine backup. If in doubt, connect the hard drive to your Mac and open OS X’s Disk Utility (in the /Applications/Utilities folder). If you’ve found a better way to handle this speed problem, chime in with your thoughts or solutions in the comments.Once you have an external drive, confirm that it’s properly formatted for the Mac. I have encountered several individuals who mistakenly think this drive accessing behavior is their brand new Mac somehow being slow, which tells me this is a problem that should be addressed in a better fashion.
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None of the solutions outlined above are particularly ideal and hopefully a revision of Mac OS X will change the behavior of how external hard drives are accessed so they are only spun up specifically when they are selected or used. You can also physically disconnect external disks which has an added benefit of providing for a faster boot time, but that’s a pain and really isn’t a valid fix.
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For that reason it’s best to use this option sparingly unless you don’t mind the possibility of a shorter drive life for both the internal and external hard drives. Click on the “Power Adapter” tab and uncheck the item labeled “Put the hard disk(s) to sleep when possible”īy checking this option the external (and internal) hard disks will not spin down to sleep while not in use, this will completely prevent the drive waking lag time and beachballs, however it can also reduce the lifespan of traditional spinning hard disks.Launch System Preferences from the Apple menu and click the “Energy Saver” panel.There are a couple possible remedies for this problem, read on to understand the pros and cons of both choices. That drive spin up time is waking the disk from its sleep state which can lead to some pretty serious system dragging even on the fastest Macs, and as a result you’ll often encounter a lengthy beachball cursor that slows down a Mac as you wait for the external drive to arise from sleep.