# How Can I Back Up Data from One External to Another? **URL:** \ **Category:** External SSD for macOS\ **Created:** [February 2, 2010, 12:31am UTC](https://forums.sandisk.com/t/how-can-i-back-up-data-from-one-external-to-another/279496 "2010-02-02T00:31:32Z")\ **Posts on this page:** 3\ **Page:** 1
**Author:** ![ewilliams](https://avatars.discourse-cdn.com/v4/letter/e/ed655f/32.png) [@ewilliams](https://forums.sandisk.com/u/ewilliams)\ **Post date:** [February 2, 2010, 12:31am UTC](https://forums.sandisk.com/t/how-can-i-back-up-data-from-one-external-to-another/279496/1 "2010-02-02T00:31:32Z")
I just bought a 1TB My Book for my new iMac (Snow Leopard), and Time Machine is running as I type. Only one problem: it automatically excludes my WD My Passport, which is where I keep my music library. I can’t find any way in Time Machine to make it include the external Passport in the Time Machine backups, nor can I find a way in SmartWare to manually back up the contents of the drive to the My Book. Aside from manually copy-pasting the entire ~150gb of music files over from the Passport to the My Book every few weeks, is there any way to make this happen? I’d like to automate it a la Time Machine, but TM automatically excludes externals and won’t let me include them. Little help? The music library on my Passport is 75% of the reason I bought the My Book, just in case the Passport ever takes a dump…now I can’t do what I bought it for? ---
**Author:** ![Wayne\_1](https://avatars.discourse-cdn.com/v4/letter/w/13edae/32.png) [@Wayne\_1](https://forums.sandisk.com/u/Wayne_1)\ **Post date:** [February 3, 2010, 12:31am UTC](https://forums.sandisk.com/t/how-can-i-back-up-data-from-one-external-to-another/279496/2 "2010-02-03T00:31:40Z")
Well, since SmartWare doesn’t support backing up another external, you’re pretty much stuck with copy and paste.  If you have a windows pc, with windows backup on it, you might be able to set up a backup from your My Book to your Passport.  Just a thought. ---
**Author:** ![Crawler](https://avatars.discourse-cdn.com/v4/letter/c/e19adc/32.png) [@Crawler](https://forums.sandisk.com/u/Crawler)\ **Post date:** [February 3, 2010, 3:43pm UTC](https://forums.sandisk.com/t/how-can-i-back-up-data-from-one-external-to-another/279496/3 "2010-02-03T15:43:49Z")
An easy to use tool and on top of that freeware: [http://www.macupdate.com/info.php/id/22644/synctwofolders](http://www.macupdate.com/info.php/id/22644/synctwofolders)