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Should I format my external drive to APFS?
Optimized for all-flash storage, APFS features strong encryption, space sharing, fast directory sizing, and improved file system fundamentals. If you intend to use your external drive to move files between Macs running different OS versions, it is recommended that you format your drive in HFS+ instead.
How do you encrypt a Mac hard drive?
How to encrypt external drives using Finder
- Connect the drive you want to encrypt to your Mac.
- Open Finder and right-click the drive from the Finder sidebar.
- Select Encrypt.
- Enter a strong password of your choice, plus a password hint.
- Click Encrypt Disk.
How long does it take to encrypt a hard drive?
With an average system, an 80 GB boot disk or partition takes approximately three hours to encrypt using Symantec Drive Encryption (formerly PGP Whole Disk Encryption) when no other applications are running. A very fast system, on the other hand, can easily encrypt such a disk or partition in less than an hour.
Why do I need to use encryption with APFS?
With APFS, encryption is an inherent property that can be turned on and negotiated at the filesystem level. That should make it less likely that things could go wrong, and should be more efficient. As a FileVault user, don’t disable the feature, but you shouldn’t notice any differences in everyday use.”
Why is it bad to use APFS on HDD?
So that would be really bad. Instead, APFS creates a new extent for each of the edits. It also has to create a new extent for the remaining data after the transition, the part of the movie which comes after the transition and which is still the same in both the original movie and its copy.
How to revert from APFs to HFS +?
Also Read: The Speed of APFS: Just How Fast Is It? , How to Revert a drive from APFS back to HFS+ Unlike SSDs, HDDs are mechanical devices with spinning disks (aka platters) containing your volume’s data, and heads that move over the disk in order to read that data.
Why does APFS not write over the original file?
It can’t write the edits over the original file, like the HFS Extended volume does, because then the changes would exist in both the original file and its copy—remember that the extents table for the file and its copy point to the same location on the disk. So that would be really bad. Instead, APFS creates a new extent for each of the edits.