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Mac OS X Lion Time Machine capable of 'Local Snapshots' without external hard drive
Dubbed 'Local Snapshots,' it sounds like it will be very similar to Versions, another new feature in OS X Lion that keeps track of changes to documents, and lets you revert to older versions. Local Snapshots, on the other hand, will take a snapshot of every modified file on your hard drive every hour. It sounds like it could drain an awful lot of system resources (CPU time and hard drive space), but we'll have to wait and see.
If anything, it just sounds like this is a convenience measure more than anything else: we should make daily backups, but plugging in an external hard drive every night is a pain in the ass. With Local Snapshots, you can go a few days without plugging in -- and when you finally do, Time Machine will copy all of your local snapshots to the external drive.
Comments
8
Subscribe to commentsJoshFeb 28th 2011 7:23AM
This is something you'll likely want to turn off if you are running Lion right now. Some people are commenting that it has used up 100+ GB of space since installing Lion and they didn't even know it was there.
Sebastian AnthonyFeb 28th 2011 7:28AM
@Josh Yikes! 100GB?
I was hoping that it would do some clever 'differencing' between files, rather than just copying EVERYTHING. But at 100GB... I guess it's just making lots and lots of copies :P
codedigitalFeb 28th 2011 7:37AM
@Sebastian Anthony
It's differential.
codedigitalFeb 28th 2011 7:36AM
I'm kind of proud of you right now.
Sebastian AnthonyFeb 28th 2011 7:40AM
@codedigital I will sleep better tonight, knowing the Mac Collective is on my side.
Sebastian AnthonyFeb 28th 2011 7:39AM
@codedigital 100GB is a lot for a differencing algorithm, isn't it? (Unless, of course, the user has 100GB of stuff installed... but presumably this is coming from a fresh Lion install.)
codedigitalFeb 28th 2011 8:05AM
@Sebastian Anthony
I haven't experienced this issue myself...but we're still in the first beta. Could be a simple bug.
xxdesmusFeb 28th 2011 2:51PM
So it's basically "previous version" and shadow copy that has been in Windows since...oh, Windows Vista (for consumers) and Windows Server 2003 (for server). I mean, well done Apple ...I'm sure yours has a pretty face on it with flashy shiny graphics, but well done on the innovation.