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1. How to configure my lacie backup drive on mojave how to#
2. How to configure my lacie backup drive on mojave mac#

You can share the Time Machine container with volumes that aren’t being used for backups. Nor does Apple have any reason to back-port that role type.

How to configure my lacie backup drive on mojave how to#

In Big Sur, Apple added the Backup role, designed for Time Machine snapshots and incremental backups, and which is effectively unreadable in Catalina and earlier, because those releases simply don’t know how to interpret it. (In Catalina, Apple added volume groups, which are used to hold the operating system itself in pieces, separating your data from system files, enhancing system security and integrity.) You can have several volumes in a container that dynamically share the space allotted to the container, which means you don’t have to allocate storage space to a given volume beforehand. Each container has one or more volumes, and each volume (starting in High Sierra) has a “role,” which defines the kind of volume it is. APFS divides a disk into one or more containers (similar to partitions).

How to configure my lacie backup drive on mojave mac#

Not only must you use Big Sur to back up to an APFS-formatted Time Machine volume, you can’t even access the backups from a Mac with Catalina or an earlier macOS version installed. This might go without saying, but I know enough people with mixed-system setups who will ask. I would set up any new Time Machine volume formatted with APFS, but not convert an old one from HFS+.īig Sur APFS-based Time Machine backups can’t be used in Catalina or earlier releases. While APFS has advantages for SSD-based storage, there really aren’t any for hard disk drives, the most likely kind of drive used for large-capacity backup drives. Because of the structural differences, you can’t just copy from HFS+ to APFS, either. However, if you want to shift a drive from HFS+ to APFS, you have to reformat the drive, and that erases all the Time Machine backups. You can set up a drive from scratch with HFS+ to create new Time Machine volumes as well. Your old HFS+ based Time Machine volumes remain valid and readable in Big Sur.