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#1
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About Carbon Copy Cloner
Two things I learned about CCC lately:
1: Changing media, you lose snapshots. I recently bought a bigger drive for my backups. I figured I'd just copy or clone the old one and continue backups where I'd left off. Then I noticed that the CCC clone of disk(s) was smaller than I expected. Size like a fresh clone, without snapshots. Copy with Disk Utilities or CCC, same result. I contacted Bombich, and they said, yes, snapshots are a part of APFS file system and can't be copied. So, be aware; changing backup disk media, you lose snapshots and roll-back ability. 2: Without thinking, I moved a 50gb folder to another directory on the same disk. My daily CCC backup of course copied that and my backup disk lost 50gb of free space. Contacted Bombich, they said only way to retrieve that space was to wait for CCC settings to "thin" out the original folder automatically, or for the disk to reach full space limit, and then thin. So, I've set the CCC task now to not keep anything older than 10 days, and the 50gb will be released in 10 days. CCC is a great backup software, and Bombich provide good service, I just thought I'd let you know. (By the way, I told them CCC should have the option to delete files/folders across snapshots, even Timemachine can do that.)
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Mac mini M2 16GB RAM macOS 13.4.1. PT Studio 2023.6. Topping E30 II DAC, Dynaudio BM6, 2 x Artist Mix, SSL UC1, Control on iPad. |
#2
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Re: About Carbon Copy Cloner
Thanks - good to know!!
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Help Us Help You ______________________________________ Chris Pro Tools 2024.3 Focusrite LS56 Focusrite Pro40 (2) TC Electronic Studio Konnekt 48 Avid Artist Mix/Control Slate Digital VRS8 Analogue Tonebuss 24 Channel UAD-2 OCTO Core Accelerator UAD Volt 2 macOS 10.15.7 32 GB DDR4 RAM 4.01GHz Quad-Core Intel Core I7 NVIDIA GeForce GT 740 2 GB |
#3
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Re: About Carbon Copy Cloner
Thanks for sharing, Ben.
I feel that the most useful thing here for Mac users reading this is to appreciate that the way that APFS works with snapshots, copies, links, etc. is not always what they might expect having used previous file systems. https://eclecticlight.co/2019/01/05/...-mojaves-apfs/ I imagine that your situation was complicated by an expectation that your CCC backup would also copy/carry over the built-in ‘backup’ capability provided via snapshots, so not really an issue with CCC itself. In my experience, Mike Bombich and his team provide some of the best support in the business and they have helped me endlessly to refresh/develop my backup strategy following my migration to APFS, well beyond questions related to their product, allowing me to learn, buy the right drives, etc. ... very different to another Mac backup app developer I also use! |
#4
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Re: About Carbon Copy Cloner
I agree w/everything you wrote, Righty.
And of course, I had great, almost immediate help from Bombich to help me understand this.
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Mac mini M2 16GB RAM macOS 13.4.1. PT Studio 2023.6. Topping E30 II DAC, Dynaudio BM6, 2 x Artist Mix, SSL UC1, Control on iPad. |
#5
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Re: About Carbon Copy Cloner
About CCC and Apple's new "Signed System Volume" strategy beginning with Big Sur; I updated myself somewhat on issues regarding CCC's handling of the challenges this significant change in MacOS, and specifically about it no longer allows so-called bootable backups. I found this really informative FAQ from Bombich, and thought I'd share:
Frequently asked questions about CCC and macOS 11 (and later OSes) Quote:
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Mac mini M2 16GB RAM macOS 13.4.1. PT Studio 2023.6. Topping E30 II DAC, Dynaudio BM6, 2 x Artist Mix, SSL UC1, Control on iPad. |
#6
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Re: About Carbon Copy Cloner
Quote:
https://www.shirt-pocket.com Greg
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Composer/Sound Designer/Protools 2024.3 Ultimate, MTRXII-TB3, DADMAN MOM, Cisco SG350-10MP EthernetHUB, KLANG:quelle 4 Channel Dante™Headphone Amp, DVS,MADI, Mac Studio Ultra,128 RAM/4TB SSD, Ventura 13.6.6, DP 11.3.1, Logic Pro X 10.8.1 DOLBY ATMOS Facility/MPSE Motion Picture Sound Editors Avid Certified Professional ProTools/Dolby ATMOS Last edited by gives; 01-02-2022 at 08:38 AM. Reason: adding info |
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