ctwise

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ctwise
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  • Inside macOS 10.13 High Sierra: APFS benefits end users with space, speed

    ctwisectwise
    melgross said:
    The only thing that bothers me is the file copy. When I copy a file, I'm doing it for a reason. I want an exact copy. If I alter one, I don't necessarily want the other altered. If one gets corrupted, rare, but it does happen, I want the other pristine one to replace it. I'm not sure how this will work.

    its a reason why I'm not fond of de-duping. My copies are intentional.
    It's a Copy-On-Write (COW) filesystem. Most of the modern filesystems are. When you copy a file it just moves some pointers around instead of copying the data to a new location. The data isn't physically copied until you modify it.
    fastasleep