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AMK152
01-30-2015, 11:44 PM
Hello,

I have a 2013 MacBook Air, 500 GB. I use a 2 TB My Passport for Mac (A) to backup my Mac using TimeMachine. It works very well and I have not had a problem with it.

Now, because I have been doing a lot of work with videos, I have run out of space. So, I purchased two more 2 TB My Passport for Mac (B and C).

I plan on moving my videos to B so that it is solely for video.

However, I want to be able to backup B to C, so that I have two copies of my video drive.

Is there any way to do this with TimeMachine or does anyone have any better suggestions?

Thanks for any help!

chscag
01-31-2015, 12:01 AM
However, I want to be able to backup B to C, so that I have two copies of my video drive.

Is there any way to do this with TimeMachine or does anyone have any better suggestions?

Time Machine won't perform that kind of a backup. Actually what you need is cloning software: Carbon Copy Cloner or SuperDuper. Both will backup one external hard drive to another.

chas_m
01-31-2015, 06:24 AM
I know SuperDuper (http://www.shirt-pocket.com/SuperDuper/SuperDuperDescription.html) or Carbon Copy Cloner (http://www.bombich.com/) are the frequently-mentioned choice, but there is another option, one which I've grown to like best: Chronosync (http://econtechnologies.com/chronosync/sneakpeek.html).

There are two main reasons and one smaller reason I like it:

1. Chronosync has worked reliably for years, and has more flexibility and power than either of the other two. You can sync local drives, networked drives, remote drives over the internet. Chronosync does not care, and offers a lot of options and customizability to your backup plan if you care to get into that, or does incremental or whole backups simply if that's all you want.

2. No user left behind policy. You buy Chronosync one time ($40) and you're done. You get every future version they release. Forever. They have had this policy for more than a decade (at least), and mention it constantly, so there are no plans to change it.

3. I know these guys and their drive for the product. They provide outstanding customer service (which I've never needed) and are genuinely customer-focused. I've been a customer for many years, and I've used the other products as well and they are great too. But Chronosync has never let me down, even when I took it for granted. After like 10 years of free upgrades, and when SD didn't initially work with Yosemite (and CCC decided it was paid upgrade time ... again ...) I took a fresh look at it and decided it really is the best of the bunch.

Apart from my acquaintance with the developers, I have no reason to praise them apart from my general satisfaction with the product. They've never asked me to say a word about it. I just decided after years of use that I should let others in on this underrated gem. There's a 30-day free trial so you can try it for yourself.

chscag
01-31-2015, 01:30 PM
I've never used Chronosync so I can't comment on its use and other attributes. However, Carbon Copy Cloner is clearly the choice of Macworld Magazine and other Mac article writers. It should be noted that CCC was donation ware for a number of years before it went to pay ware. Also, I believe that the simple version of SuperDuper is still free.

dbm
02-03-2015, 02:53 PM
Could you set up the two drives as a RAID? I have a LaCie RAID drive with a Thunderbolt connection where I store my media.

bobtomay
02-03-2015, 08:13 PM
I've been using one of these (http://eshop.macsales.com/shop/firewire/usb/raid_1/Gmax) - prior version - for a few years for my audio/video files - hardware RAID 1 mirrored setup and no backup worries - it's a nice kit for $120 w/your own drives.