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The file-level deduplication [1] is interesting. Not being a filesystem expert, this sounds like it fulfills a similar usecase to snapshots [2]. Or am I reading
by niftich 10y ago
The file-level deduplication [1] is interesting. Not being a filesystem expert, this sounds like it fulfills a similar usecase to snapshots [2]. Or am I reading this wrong?
Is NTFS's shadow copy like Snapshots?
[1] http://dtrace.org/blogs/ahl/2016/06/19/apfs-part3/#apfs-clones http://dtrace.org/blogs/ahl/2016/06/19/apfs-part3/#apfs-clon...
[2] http://dtrace.org/blogs/ahl/2016/06/19/apfs-part2/#apfs-snapshots http://dtrace.org/blogs/ahl/2016/06/19/apfs-part2/#apfs-snap...
- rincebrain 10y agoNTFS Shadow Copies are more like LVM/ZFS snapshots than APFS's file-level CoW snapshots, in that they both operate on the entire volume at block-level, rather than having a per-file level of granularity. There are other FSes that allow the behavior that APFS is demonstrating - look at OCFS2 and Btrfs, both of which allow you to do cp --reflink.