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Conditions for update of available space
Authored by: stevebr on Aug 30, '06 10:49:54AM
NOTE: Available drive space information is NOT updated very often, so don't rely on its accuracy. I usually think of it this way: "When I logged in, the free space was...."

After some frustration and a lot of observation, I've noticed that the update takes place under the following conditions:

  • When the volume is mounted
  • When the contents of the top-level-directory of the volume change (/Volumes/MountedVol/, but not /Volumes/MountedVol/Subdir/)
  • At no other observable time (so no scheduled updates as far as I can tell)

In Tiger (at least from the last few revisions), this appears to be true for USB and FireWire disks with HFS+ and FAT volumes, as well as AFP and SMB mounted network shares.

As I mentioned, this is from observation only -- I don't presume to know definitively. It would be interesting to find out others' observations. We might be able to detect enough of a pattern to work out a scripted solution for better updates.



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