![]() You’ll therefore need to bring your own Python. What you’ll find at /usr/bin/python3 is only a stub, which will prompt you in the GUI to install Xcode or its developer tools. ![]() Python version 2.7 is being removed from Monterey 12.3. Those using the Python programming language will be aware that Apple is reducing bundled support for such languages. If you're using Dropbox's Smart Sync feature, we recommend excluding the Dropbox folder from your backup if your source volume is APFS formatted and the destination is not APFS formatted.No sooner have we updated our Macs to Monterey 12.2 than Apple has released the first beta of 12.3, with some important warnings of changes. This is not a limitation of CCC, this is simply a limitation of backing up APFS volumes to HFS+ volumes. While this is functionally consistent with the content of the source file (no data stored locally!), your backup will consume considerably more space than the source. If you back up your APFS-hosted Dropbox folder to an HFS+ backup volume, the placeholder files will consume all of the space of the real file, but will contain no data (just a bunch of zeroes). CCC can only preserve these placeholder files when copying to another APFS volume. However, not all filesystems support sparse files. A sparse file is a much better device to use for creating a placeholder file insofar as it is non-proprietary, and this is likely why Dropbox chose to use sparse files in favor of the compressed file hack. 2.4MB), and the physical size would be 0 bytes (because no data is stored locally). In the case of a Dropbox placeholder file, the logical size would be the size of the real file (e.g. A sparse file has a logical size that is larger than its physical size. If your Dropbox folder is on an APFS volume (the default filesystem starting in macOS High Sierra), then Dropbox creates a sparse placeholder file. As far as backing up these files is concerned, though, the hack is fine – CCC will preserve these placeholder files when copying to another HFS+ volume, or even to an APFS volume. This clever hack works, but this is an unconventional use of the "is compressed" file flag. The file is not technically compressed, of course, because no data is stored locally. If your Dropbox folder is on an HFS+ formatted volume (the default filesystem up to macOS Sierra), Dropbox will flag an online-only placeholder as a compressed file. Dropbox's proprietary placeholder files are not transferrable from APFS to HFS+ formatted volumes CCC makes a non-proprietary backup of your files our goal is to make the destination files look exactly like the source files. CCC backups do not behave like Finder copies. And for good reason – if you have 1TB of online-only files on your 500GB SSD, you wouldn't want Dropbox to download all of that data when CCC attempts to make a backup! Rather, CCC copies the placeholder files as they are, retaining all of the placeholder attributes of the source files. Likewise, if you attempt to copy a placeholder file via the Finder from one volume to another, Dropbox downloads the data to the source, then copies the original file (leaving the downloaded source file in place). As noted above, when you open a placeholder file in the Finder, Dropbox downloads the original. When you ask Dropbox to store a file only in the cloud, Dropbox deletes the local copy of the file and replaces it with a proprietary, 0-byte placeholder file. Dropbox placeholder files are backed up as placeholder files Before using the Smart Sync feature, you should consider whether you are comfortable with not having a local backup of the files that you choose to store only in the cloud. While this is a convenient feature that allows you to free up some space on your Mac, this feature removes files from your local storage, which means that CCC can't make a backup of these online-only files. If you attempt to open the placeholder file, Dropbox automatically downloads the data of the file to your Mac and the document opens. What remains on your Mac is a 0-byte placeholder file. Dropbox Professional offers a "Smart Sync" feature that allows the user to store files only in the cloud.
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