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synchronize 2 external hard drives on iMac Big Sur
- Thread starter 262Runnr
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If you want to simply copy the contents of one drive to the other, use either CarbonCopyCloner or SuperDuper.
Both will produce EXACT copies of the source drive.
If you mount the backup on the desktop, it will look exactly the same as the source.
The size differential between the two drives won't make any difference.
Both of these utilities are FREE to download and use for 30 days.
The best way to understand what I'm talking about is to try one (or both) of them.
You'll immediately see why they're "the right tools for the job"...
Both will produce EXACT copies of the source drive.
If you mount the backup on the desktop, it will look exactly the same as the source.
The size differential between the two drives won't make any difference.
Both of these utilities are FREE to download and use for 30 days.
The best way to understand what I'm talking about is to try one (or both) of them.
You'll immediately see why they're "the right tools for the job"...
Actually, what I am trying to do is keep a backup of my photos external drive. What I discovered it that Time Machine actually keeps a copy in every snapshot, I didn't realize that it would backup external drives...so that's pretty much solves my problem. I can always periodically make a copy of the drive every so often besides so even if I had a malfunction, it would not be catastrophic....
You can use Disk Utility to set up a mirrored RAID using both drives. That will ensure that they both always have a complete copy of your data.
Overview of creating disk sets using Disk Utility on Mac
Use Disk Utility on your Mac to create a Redundant Array of Independent Disks (RAID) set, multiple disks that work as one disk.
support.apple.com
OP wrote:
"Actually, what I am trying to do is keep a backup of my photos external drive"
The entire Photos drive?
Backed up to ANOTHER drive?
This is EXACTLY the job that either CCC or SD are perfect for.
I'm gonna say it one more time:
Try them, and you will IMMEDIATELY understand why they're the best tools for the task-at-hand.
"Actually, what I am trying to do is keep a backup of my photos external drive"
The entire Photos drive?
Backed up to ANOTHER drive?
This is EXACTLY the job that either CCC or SD are perfect for.
I'm gonna say it one more time:
Try them, and you will IMMEDIATELY understand why they're the best tools for the task-at-hand.