![]() APFS backups support new file types, sparse files and clones, in their original form, rather than having to expand them to full-sized files.Īpple’s original AFP was introduced in Classic Mac OS System 6, way back in 1988, and its use has been deprecated for the last eight years.The file system in the sparsebundle is APFS, which structures backups much more reliably into snapshots, rather than a single file system which can choke on millions of hard links.APFS backs up changed blocks, rather than whole files, which is both quicker and more economical in its use of storage. ![]() To start using APFS in the sparsebundle, you’ll need to close any existing backup and start a new sparsebundle as a new backup destination on your network storage, using Big Sur or later.Īlthough switching to APFS doesn’t solve any underlying problems with the speed of SMB, your new backup still benefits from the many advantages of APFS, including: If you want to continue backing up to the same sparsebundle, then that can’t be converted to APFS but will remain in HFS+ format. That summarises the chains in Catalina with Big Sur this has only become more complex as the destination sparsebundle can now host a virtual APFS file system instead of HFS+. These arise because of the complexity of the backup chain when using network storage, compared with that using local disks. This article provides some pointers which I hope lead to resolution of at least some of those problems. Some can’t even see their shared storage as a destination for their backups, others wonder whether the new option to back up to APFS is any better than their existing HFS+ backups, and many find backups slowing to a crawl for many hours or even days at a time. ![]() ![]() There are few topics in macOS which appear as difficult and sometimes insoluble as making Time Machine backups to network storage, such as a NAS. ![]()
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