CCC will do just fine under Mojave with a backup drive formatted to Mac Extended Journaled. This will change after Mojave however where the backup drive will have to be APFS but CCC should be ready for that by September.

From E.T.'s Keyboard...
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On 7/19/2019 7:11 PM, 'Robert Cole' via MacVisionaries wrote:
I will be cloning using carbon copy cloner.
The USB Drive is not SSD.



Sent from my iPhone

On Jul 19, 2019, at 8:28 PM, M. Taylor <[email protected]> wrote:

Hello Robert,

This is just my opinion, but the answer kind of depends upon whether or not you 
intend to run Mac OS on your USB external drive.

If the USB device is a solid-state drive (SSD) and you plan on using it as a 
boot partition, for instance by cloning your internal drive such as one would 
do using an application such as Super-Duper, then the drive must be formatted 
APFS.

However, if the USB device is not an SSD, then you may boot from it using the 
Extended Journal format.

Again, my assumption is that you intend to clone your internal boot partition; 
because when I think of a backup drive, cloning is what comes to mind.

Now some people elect to employ proprietary software techniques for backing up 
a drive, for instance using Time Machine.  I do not use such methods because, 
if something goes wrong, even a little thing, then you could lose some or all 
of your data.

To me, the only true reliable backup of any drive is to clone it, bit-for-bit 
using good old copy and paste, such is what is done in Super-Duper.

Just my opinion.

Mark

-----Original Message-----
From: 'Robert Cole' via MacVisionaries [mailto:[email protected]]
Sent: Friday, July 19, 2019 10:13 AM
To: Email Groups
Subject: APFS or Mac Extended Journal for backup drive

Dear List, My Mac is APFS, but my backup drive is Mac Extended Journal, Should 
I convert the USB external drive to APFS?
Thanks in advance,
Rob

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