Carbon copy cloner mac os extended

For example, an APFS destination can store snapshots from which you can do point-in-time restores. APFS volumes also support sparse files , and you're less likely to run into name comparison problems e. This firmware upgrade cannot be made part of the cloning process.

Preparing your backup disk for a backup of OS X

Note, however, that every major MacOS upgrade may require a new firmware upgrade to allow use of the newer operating system. Note that this is also applicable to a Macintosh running in Target Disk Mode. Note that CCC doesn't play any role in the encryption process — encryption is a function of the volume, not of the tool that's writing a file. If you enable FileVault on your startup disk, then the files on your startup disk will be encrypted.

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Those files are decrypted on-the-fly by the filesystem when they're opened by an application. Likewise, if you enable FileVault on the destination volume e. CCC doesn't have to encrypt those files, they're encrypted on-the-fly by the filesystem as the bits are written to disk. APFS cloning allows the user to instantly create copies of files on the same volume without consuming extra storage space.

Michael Tsai - Blog - Backing Up macOS Beta

The two files will share storage on the disk for portions of the files that remain identical, but changes to either file will be written to different parts of the disk. APFS file cloning only works when you make copies of a file on the same volume e.

The important take-away is that APFS file cloning can save you space on your startup disk, but CCC cloning can save your data if your source disk fails. They serve completely different purposes; APFS file cloning is not at all related to making backups. CCC's global exclusions as well as the SafetyNet feature have traditionally led to legitimate differences in disk usage in the past. The update that is required is within the proprietary encryption key bundle that macOS maintains for your encrypted volume. This encryption key is not maintained on the backup volume, and it is Apple-proprietary, so it isn't something that CCC can or should modify.

To update the encryption password on the destination volume:. In our tests, however, this device was no longer recognizable when FileVault encryption was enabled. This problem appears to be limited to OS X The same volume was accessible using older and newer OSes, and also functioned fine as an encrypted startup device using older and newer OSes.

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We generally recommend that people establish a bootable backup on a non-encrypted volume , and then enable FileVault while booted from the destination. Some people have discovered, however, that a pre-encrypted volume can will usually function as a bootable device. So why do we recommend the former? There are a couple notable differences between pre-encrypting the disk vs. One drawback to enabling FileVault via the Security Preference Pane, however, is that changes to account passwords on the source volume aren't immediately reflected on the backup as far as unlocking the disk is concerned.

The old account passwords would be required until you boot from the backup and specifically re-enable those accounts in the Security Preference Pane at which time the disk's EncryptionKey is remastered. As far as the backups are concerned, there's no difference between these two methods. There is still an order-of-operations concern with pre-encrypting the disk. You'd want to approach it in this manner:.

In general, either procedure is fine, it really is the same as far as the backup is concerned. We generally prefer the Security Preference Pane method, however, because it yields the same UI behavior you are expecting if you have enabled FileVault on your production startup volume. Early adopters will surely find some shortcomings and bugs which will be resolved in the next month or so with minor OS updates.

Does this upgrade fix a problem that causes me daily grief? Will this upgrade improve my productivity or security, outweighing the time I may have to invest in fixing early-adopter problems? Those are the key questions I ask myself before applying any upgrade. In most cases, you The speed of copying files to them felt about the same, but slogging through folders in the Finder was taking a lot longer. At first I shrugged it off to the filesystem being new; "It just needs some tuning, it will come along.

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To do this, I had to set up a simulation that would produce identical changes on two volumes to allow for a consistent, objective analysis of the filesystem performance. When I refer to "filesystem performance," I'm specifically referring to how long it takes the filesystem to do transactional tasks. Read and write performance depends almost entirely on the speed of the media, so I wanted to factor that out of my tests. Spotlight was disabled on both volumes.

Snapshot support and APFS defragmentation were varied in different tests to determine whether they had any effect on filesystem performance. The number of files in the file set is constant — 1 million files, , directories files nested three directories deep. Each individual file size is determined randomly, but in a pattern that follows that size distribution histogram. Max file size is 20GB. What an exciting week! Among the new announcements this year is the introduction of a read-only system volume on macOS Catalina.

From the moment that Apple announced APFS, I anticipated exactly this sort of setup — user data on one volume, macOS on another — complete separation, absolute protection for the system. Apple has implemented this in a manner that will be almost completely transparent to the end user, and so far, I'm pretty stoked about how all of this works. In the Finder you'll only see one volume that represents your startup disk and it will appear as if everything is on that single volume. In reality, the startup disk that you see in the Finder is the read-only system volume and doesn't have any of your data on it; the "Data" volume is separate and hidden.

CCC will have to find that hidden volume don't worry, I know where to look :- and back up its contents alongside the system volume. We're adding that functionality right now, though, and we'll be hard at work over the summer on some new documentation that will help explain everything that you're seeing or not seeing! Allow me to be the first to say it: stick a fork in it, HFS is done. We plan to make this as easy as possible for you, though, so don't go out of your way to get ready for this.

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