APFS does a lot of cool stuff with your data, from modernizing file indexes, to lowering overall latency. That’s a lot of behind the scenes engineering, and it’s just the tip of the iceberg. Additionally, APFS now supports native single and multi-key encryption, which means you’ll be able to encrypt or decrypt individual files and folders without locking or unlocking your entire hard drive through FileVault. Because of that, APFS is capable of managing up to nine quintillion files on a single volume. That’s a lot, but given the ever-increasing size of the hard drives we have available to us, it’s an uncomfortable ceiling.ĪPFS remedies that by using 64-bit inodes, or file IDs, instead of 32-bit file IDs like HFS+. As the storage experts at Backblaze report, HFS+ is only capable of keeping track of about four billion individual files. Image used with permission by copyright holderĪPFS is designed with SSDs in mind, so it’s able to handle a larger number of individual files. Still, the changes introduced by APFS are a big deal, even if they’re not exactly going to revolutionize the way you use your Mac. None of these are issues that most users would ever notice. The new file system, aptly named the Apple File System (APFS), aims to get MacOS ready for the future by addressing several the issues plaguing HFS and HFS+. Over the years Apple iterated on its original file system with HFS+, which is what was in use right up until MacOS High Sierra. Since time immemorial, Macs have used the hierarchical file system (HFS). The big new feature in High Sierra comes in the way your Mac stores and retrieves data. Let’s descend into the weird and arcane world of file systems. You really have to dig for the new High Sierra features - deep, in the darkest corners of your Mac, High Sierra begins its work, disassembling and re-assembling your files in its own image, optimizing and toiling away in obscurity. In fact, after using the High Sierra developer and beta builds over the summer, the only major difference we noticed in day-to-day use was the fancy new wallpaper. We’d never notice they exist if Apple didn’t point them out. These tweaks are fine, but they’re minor. And the Photos app synchronizes categories between devices, in addition to the photos themselves. Safari has been tweaked to improve performance. But if you are using a Mac model running macOS 10.12 and earlier, you can still try it.The big changes are behind the scenes, and the biggest change comes to the file system itself. Since the company stopped the development of iDefrag after the release of macOS 10.13 High Sierra, iDefrag has had some problems on macOS 10.13 High Sierra and later. The program offers to rearrange the files on your hard disk in order to improve your system performance and retrieve the needed information in a shorter amount of time. IDefrag, made by Coriolis Systems, is a handy application that works as a disk defragmenter and system optimizer. There are 18 different features offered in addition to defragmentation, however, if you are using macOS 10.13 or newer, the Defragment, Repartition, and Rebuild utilities are not supported on APFS volume. It costs $79 for a standard license from Prosoft. It will show you a graphical representation of how fragmented your volume is and will then offer to defrag, or reorganize, the fragmented files, regardless of size or fragmentation level. Prosoft Engineering's Drive Genius offers to defrag your Mac. However, it doesn't support defragmenting for APFS volumes and does not advise its use for an SSD. In addition to making Mac defragment the hard drive, Tech Tool Pro 14 is also powerful for checking and repairing Mac hard disks. A full version of the app costs £121.99 from Micromat. TechTool Pro 14 is a universal tool for Mac performance optimization and runs natively on both Apple Silicon and Intel Macs. There are several apps to recommend: Tech Tool Pro 14 If you need to defrag Mac hard drive to boost its performance, you can use the third-party defragger for Mac or MacBook. The macOS does not provide a utility for defragmenting the hard drive. Such files are very susceptible to fragmentation and can be difficult to eliminate automatically.
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