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A little mishap happened earlier today and i am thinking i should have a copy of my external harddrive since 10% of it is very valuable. What is the best solution to keep two external harddrive in sync? i'll probably use one as regular and maybe use the other only to copy data. The easiest way to keep it in sync is to clear one drive and copy the other but 1T of data will take a long time.

Whats a good existing app that will keep them in sync? freeware preferred.

4 Answers4

11

If you're in Windows, you can use Synctoy. Very easy to use IMO.

ianix
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7

rsync and maybe rdiff-backup.

On Windows - robocopy (comes with Vista).

grawity
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5

This article compares FreeFileSync and SyncToy

Although they roughly perform the same functions, FreeFileSync had an edge over SyncToy in Performance, portability and overall has slightly more features. One advantage in particular of FreeFileSync over SyncToy is the ability to copy locked (ie open) files (SyncToy can’t copy locked files)

Danield
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0

When I have to use Windows or when setting up for Windows users.

For hourly and daily unattended sync I really like PtReplicator which is a really easy, powerful, fast, and free.

When I am doing manual syncs, or have an external that I want to have the software and settings available on the external disk when I plug it in I use Toucan Portable. I love this one because I have several different drives for specific uses.

When I'm on my Ubuntu boxes I agree with the Grsync suggestion.

Dennis
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