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storing email on external drive to save space

I am running out of space on my hard drive and have an external drive. I want to be able to store my emails on the external drive seamlessly. I want them to appear in mammal, but when I store them I want them to automatically go to the external drive. I also want to be able to manipulate them as I do now. I don't want a mirrored drive, though, as that will not alleviate my storage issues.

Posted on Jul 11, 2014 11:22 AM

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20 replies

Jul 15, 2014 5:04 PM in response to czani64

czani64 wrote:


- Check the external drive is formatted as OS X Extended (Journaled). it is but it doesn't say OS X Extended, just Mac OS extended

- Ensure the external drive is not enabled for " Ignore ownership to this volume " How do I verify this. that wording doesn't appear anywhere

- The guide is referenced on many posts. My preference is to perform this with a cloning tool, Carbon Copy Cloner or SuperDuper. Which guide? I don't have Carbon Copy Cloner or SuperDuper.

- My typo, as long as the format is Mac OS Extended (Journaled) , should be ok.

- Under Finder -> right click external drive -> Get Info : at the bottom is a tick box for " Ignore ownership on this volume " make sure it is not ticked.

- As I posted earlier: User tip: User Tip: Creating a lean, fast Boot Drive

- There is a free version of SuperDuper, a trial version of Carbon Copy Cloner

Jul 16, 2014 11:42 AM in response to dwbrecovery

There is a drop down menu with a sunburst or wheel icon in the "Sharing and Permissions" section. The options are

"make …(me) the owner

apply to enclosed items...

revert changes


But they are greyed out unless I unlock them. When I unlock them, I can "make me the owner" or "apply to enclosed items".

I dont' see any tick box with Ignore ownership on this volume.

storing email on external drive to save space

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