OS X Lion: Apple Publishes Tech Note on Local Snapshots

| News

On Thursday, Apple posted a new Knowledge Base article, # HT4878, on how Local Snapshots work on portable Macs, with OS X Lion, that are not connected to a Time Machine drive.

One of the new features of OS X Lion is the ability to take what’s called “Local Snapshots,” made hourly, in the background, just like Time Machine.

When you enter the Time Machine browser, these snapshots will appear in the timeline along with regular backups, but they have a different color. According to Apple, “Gray tick marks represent local snapshots and pink tick marks represent backups stored on your external backup disk or Time Capsule. Note: Pink tick marks will be dimmed if your portable computer is not connected to your external backup disk or Time Capsule.”

Lion Snapshots

Note pink and white tickmarks on the right. (Credit: Apple, Inc.) 

The article also shows how you can use the “About This Mac” window (under the Apple menu) to show how much disk space is being used by the snapshots.” Lion will surrender some of the space used by these backups if required.

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