So in summary, I believe that the comments in the MySQL news posting are slightly confused. On MacOS X fsync() behaves the same as it does on all Unices.

So in summary, I believe that the comments in the MySQL news posting are slightly confused. On MacOS X fsync() behaves the same as it does on all Unices. That's not good enough if you really care about data integrity and so we also provide the F_FULLFSYNC fcntl. As far as I know, MacOS X is the only OS to provide this feature for apps that need to truly guarantee their data is on disk. The full post goes into detail. http://lists.apple.com/archives/darwin-dev/2005/Feb/msg00072.html http://lists.apple.com/archives/darwin-dev/2005/Feb/msg00072...