![]() Each hard link is counted by OS X as a separate file.ĭave notes that Time Machine also stores a sort of local backup on the startup drive to improve its performance in copying to a local drive or a remote one over the network. ![]() A Time Machine backup comprises mostly hard links pointing to existing files or folders unchanged since the previous backup. Using so-called hard links, which allows a single copy of data to appear multiple times in a folder hierarchy, Time Machine creates hidden folders that fully replicate a hard disk’s file structure. There are a lot of hidden folders on your drive, sometimes entire hierarchies that are emulating things that can’t be directly expressed in HFS+, but are still counted as “files,” even though you wouldn’t ever access them that way.Īpple implemented Time Machine in a very peculiar way by most developers’ reckoning to create an exact copy without duplicating every file. In general, especially if you’re not seeing excessive disk usage, this just isn’t something to worry about. The laptop I’m typing on right now has-according to Disk Utility-6,709,682 files. ![]() ![]() I remember those early days, back when laptops were made of plastic, and chips by IBM.
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