Lion still uses HFS+. They seem to be doing some trickery to save space (i.e. th... | Hacker News

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ugh on March 17, 2011 | parent | context | favorite | on: Z-410 Storage: commercial ZFS for OSX (by Don Brad...

Lion still uses HFS+. They seem to be doing some trickery to save space (i.e. they don’t save complete copies) but it’s all still HFS+.

bcrawford on March 17, 2011 [–]

I wonder: is it something like how Time Machine works? In that each file is mirrored and unmodified ones are hard linked through editions? I can't imagine that being space efficient but I wouldn't put it past them. AFAIK OSX doesn't have an LVM equivalent in terms of snapshotting live file systems.

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