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Up until a month ago, my girlfriend has used MobileMe to backup all the files on her MacBook. This turned out terribly when a quirk of MobileMe caused it to erase all of her files on MobileMe, and then sync the newly-erased MobileMe down to her computer, erasing everything. A week's worth of college essays and CS homework were gone.

Now, I am terrified of any commercial cloud-backup solutions because of the possibility of this happening. Going off the list provided in these answers, could you please help me find a good backup service that is completely one-way? I want a service where there is literally not a single line of code that has the possibility of writing to my computer's drive. I want a pure one-way backup service.

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"when a bug in MobileMe caused it" - yeah, this is like that time my car crashed itself into a pedestrian. – ta.speot.is Oct 24 '10 at 12:08
You should be trying to undelete files from your desktop computer. It's not impossible – djechelon Oct 24 '10 at 12:31
@taspeotis Lol. But see here: theappleblog.com/2009/01/13/… – Jon Rodriguez Oct 24 '10 at 13:15
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3 Answers

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DropBox isn't a good idea as it syncs. Crashplan is a one-way service (only backup and manual/web restore).

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on the other hand, it keeps older versions. – Journeyman Geek Oct 24 '10 at 12:26
Chosen because directly answers my question, and also upvoting the DropBox answer because the fact that DropBox keeps older versions solves my problem. Thanks everyone! – Jon Rodriguez Oct 24 '10 at 13:12
DropBox doesn't keep older versions unless you buy an optional add-on (at least as of a few months ago). If you delete something (or something is corrupted) in Dropbox it syncs the delete/corruption. Crashplan does keep all versions of all files you backup. – user53352 Oct 25 '10 at 0:04
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up vote 3 down vote

I recommend dropbox.com. Besides keeping your data in sync over multiple machines and operating systems, you can even restore deleted files.

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I'd recommend the same, dropbox is very simple and interesting service for sync files through computer/OS . You can get your file easily through webpage, no need to install a soft to get 1 file :) – nXqd Oct 24 '10 at 12:41
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up vote 2 down vote

SyncBackPro is my favourite tool. It allows you to explicitly one-way synchronize directories, meaning that any change made to the backup copy is lost when you sync.

Two problems: it's for Windows (and I read you talk about a MacBook), and you must be able to mount your phone as a removable drive or have it host an FTP/SFTP server (a jailbroken iPhone should do the trick)

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