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10.5: Exclude local iDisk mirror disk from Time Machine
Authored by: ferret-slayer on Nov 08, '07 10:01:31AM
Hopefully, a future update to Time Machine will have special provisions for these large, frequently-updated files....
That would be ZFS. A ZFS "snapshot" would only include those disk-sectors that have changed since the last snapshot.
TM currently uses HFS+, and has to copy the entire file if a single byte changes.

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