- #Use mac os extended journaled for time machine mac os#
- #Use mac os extended journaled for time machine portable#
It removes the 4GB file size limit and the 2TB partition size limit of FAT32 drives and is generally considered a better alternative for flash storage.
#Use mac os extended journaled for time machine mac os#
While you can only use an Apple file system like APFS and Mac OS Extended for your main system drive, another file system is also worth considering for external drives-ExFAT.ĮxFAT is an older file system from Microsoft, intended to replace the even older FAT32 file system used with Windows system drives before the switch to NTFS in Windows XP. You can format a drive with HFS+ using the macOS Disk Utility app, which you can launch from the Launchpad ( Other > Disk Utility). With that in mind, and for cross-compatibility, you may decide to use HFS+ over APFS. If you’re using an older, mechanical drive with a disk platter, those enhancements may seem largely minimal or non-existent.
#Use mac os extended journaled for time machine portable#
Many of the speed and performance enhancements that APFS brings rely on using a high-speed SSD or portable flash memory drive. Click on your WD Easystore drive in Disk Utility. If you select a new backup disk that’s not already formatted as an APFS disk, you get the (one and only) option to erase and reformat it. Other than functionality, however, there are still a few legitimate reasons why you’d choose HFS+ over APFS-the biggest reason depends on the type of drive you use. Plug in the WD Easystore external drive into your Mac. Time Machine still supports backups on Mac OS Extended format (Journaled), Mac OS Extended (Case-sensitive, Journaled), and Xsan formatted disks.
You’ll also need to consider Mac OS Extended if you’re using older and newer Macs together, as older versions of macOS won’t support APFS. Are you preparing a Time Machine backup disk or bootable installer Choose Mac OS Extended (Journaled) for any disk that you plan to use as a Time Machine. You’ll need to use HFS+ if you plan on formatting a second hard drive or portable flash drive for use as a Time Machine backup-APFS drives won’t work. While Mac OS Extended (HFS+) is no longer the default file system for macOS installations, it hasn’t been completely abandoned by Apple, and it’s still a useful option for macOS users under certain conditions.Īs we’ve mentioned, HFS+ is the default file system of choice for macOS Time Machine backup drives. Choosing Mac OS Extended (HFS+) for Hard Drives However, for most users, APFS is the only file system they’ll need or want to use– but only if they’re (only) using modern Mac devices. If you attempt to use an APFS-formatted drive, macOS will want to format it to HFS+ before you can proceed.Īlong with APFS and Mac OS Extended (also called HFS+), you also have other file systems that can be used for external drives, including cross-platform options like ExFAT. macOS continues to use the HFS+ file system for Time Machine drives for the time being.
If you back up your Mac using Time Machine, you won’t be able to use APFS, either. If you have an older Mac, you’ll need to keep using Mac OS Extended or use an alternative like ExFAT instead. * - The difference between theory and practice is that, in theory, there is no difference between theory and practice, and in practice, there is.The biggest downside to using APFS is that Macs with older macOS versions (macOS 10.12.6 Sierra and older) can’t read, write, or otherwise access drives that use it. Refer to Marc Wilson's insightful answer for details on which macOS version has enabled support for which formats. Choose one of the following Mac OS Extended file system formats for compatibility with Mac computers using macOS 10.12 or earlier. Neither format has inherent limitations that would prevent it from being used as a TM backup and it's merely a question of application (i.e., Time Machine) support. While, in general, APFS is better suited for SSD disks and HFS+ (macOS Extended) is better suited for rotational media due to their respective statistical access patterns and ensuing consequences for seek time and flash wear, either format could in principle be used for backup purposes if Time Machine has enabled support for it in a given macOS. In theory *, restoring from an HFS+ to an APFS volume (or vice versa) should present no problem, as the file copy is done at a higher abstraction layer in the call stack that is agnostic to the underlying storage format. While, in general, APFS is better suited for SSD disks and HFS+ (macOS Extended) is better suited for rotational media due to their respective statistical access patterns and ensuing consequences for seek time and flash wear, either format could in principle be used for backup purposes if Time Machine has enabled support for it in a given macOS release.
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