Can Time Machine back up the same data twice in two drives for redundancy?

I own a Mac Pro with two 1 TB drives and a 1 TB Time Capsule.

I use one 1 TB for data in the Mac Pro
I use one 1 TB for Time Machine on the Mac Pro

I want to also use the 1 TB Time Capsule for the same backup for redundancy.

Is this possible?

QA Apple Time Capsule

QA Apple Time Capsule

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2 Answers from the Community

  • Best Answer:


    There is currently no way to do backup automatically in the way you ask. You can however use the Time Capsule as the main backup source and then within Airport Utility->Manual Setup->Disks There is an 'Archive" option that allows you to do a one-click copy onto a USB external hard drive, but it is not automated.

  • I would think the easiest way would be to use an external hard drive - USB/Firewire/Thunderbolt/Network Attached Storage - doesn't really matter how, that is already a RAID Mirror.
    There are many available through the apple store. The one I am most familiar with is the Western Digital WorldBook (RAID) - it looks big enough for two drives (because it has two drives).
    If you get the '4TB' version of any of these devices, they have 2x2TB Hard disks inside. My suggestion would be to get one of these, make sure it's setup as a 'RAID Mirror' (This is a setup within the device/array that configures the two identical drives to automatically write all data to both at the same time, thereby giving you your redundancy).

    Also, this would allow you to easily remove the device from your machine and bring it off site if so desired.

    Lastly, as you're running a Mac Pro, you could consider getting the Apple RAID Card for your Mac Pro and 2 appropriate Hard Drives, have them installed, and you would be able to use that internal 'drive' as your redundant storage.

    Any of these options would allow you to use Time Machine easily, and give you a redundant backup.